Segment Reporting [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Macau MACAU United States UNITED STATES Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Macau Operations Macau Operations [Member] Macau Operations Wynn Palace Wynn Palace [Member] Wynn Palace [Member] Other Macau Other Macau [Member] Other Macau [Member] Las Vegas Operations Las Vegas Operations [Member] Las Vegas Operations Encore Boston Harbor Encore Boston Harbor [Member] Encore Boston Harbor [Member] Corporate and Other Corporate and Other [Member] Segment Reporting Information Segment Reporting Information [Line Items] Assets Assets Long-lived assets Long-Lived Assets Property, Plant and Equipment [Abstract] Property and Equipment, net Property, Plant and Equipment Disclosure [Text Block] Debt Disclosure [Abstract] Line of Credit Facility [Table] Line of Credit Facility [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Wynn Macau, Limited Wynn Macau, Limited [Member] Wynn Macau, Limited [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] WML Finance Credit Facility WML Finance Credit Facility [Domain] WML Finance Credit Facility [Domain] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Availability of credit facility Line of Credit Facility, Remaining Borrowing Capacity Debt instrument, interest rate Debt Instrument, Interest Rate, Stated Percentage Margin owed for cash collateral Margin owed for cash collateral Margin owed for cash collateral Goodwill and Intangible Assets Disclosure [Abstract] Indefinite-Lived Intangible Assets Schedule of Indefinite-Lived Intangible Assets [Table Text Block] Finite-Lived Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies [Table] Commitments And Contingencies [Table] Commitments and Contingencies [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Meeting and Convention Space Inperson Committee Meeting [Member] In-person Committee Meeting [Member] Construction Performance Bond Construction Performance Bond [Member] Construction Performance Bond [Member] Wynn America Credit Facilities Wynn America Credit Facilities [Member] Wynn America Credit Facilities [Member] Other Commitments [Axis] Other Commitments [Axis] Other Commitments [Domain] Other Commitments [Domain] Employment Contracts Employment Contracts [Member] Community payments associated with Encore Boston Harbor Community payments associated with Encore Boston Harbor [Member] Community payments associated with Encore Boston Harbor [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Wynn MA, LLC Wynn MA, LLC [Member] Wynn MA, LLC [Member] Wynn Las Vegas Wynn Las Vegas [Member] Wynn Las Vegas [Member] Wynn America Wynn America [Member] Wynn America [Member] Aruze USA, Inc. Aruze United States Of America Inc [Member] Aruze United States Of America Inc [Member] Redemption Price Promissory Note With Former Stockholder and Related Party, Due February 18, 2022; Interest At 2% Redemption Price Promissory Note With Former Stockholder And Related Party Due February Eighteen Two Thousand Twenty Two [Member] Redemption Price Promissory Note with Former Stockholder And Related Party, Due February Eighteen, Two Thousand Twenty Two [Member] 4 1/4% Wynn Las Vegas Senior Notes Due May 30, 2023 Four And One Over Four Percentage Wynn Las Vegas Senior Notes Due May Thirty Two Thousand Twenty Three [Member] Four And One Over Four Percentage Wynn Las Vegas Senior Notes Due May Thirty Two Thousand Twenty Three [Member] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Nevada Gaming Control Board Fine Nevada Gaming Control Board Fine [Member] Nevada Gaming Control Board Fine [Member] Commitments and Contingencies Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Guaranteed maximum construction price Guaranteed Maximum Construction Price Guaranteed maximum construction price Performance Bond Performance Bond Performance Bond Functional area square footage under construction Functional Area Square Footage Under Construction Functional Area Square Footage Under Construction Community Payments Community Payments Community Payments Number of rooms in hotel Number Of Rooms In Hotel Number Of Rooms In Hotel Contingent rentals Operating Leases, Income Statement, Contingent Revenue Rent expenses Operating Leases, Rent Expense Term of employment agreement Initial Term Of Employment Agreement Initial Term of Employment Agreement 2019 Other Commitment, Due in Next Twelve Months 2020 Other Commitment, Due in Second Year 2021 Other Commitment, Due in Third Year 2022 Other Commitment, Due in Fourth Year 2023 Other Commitment, Due in Fifth Year Letter of credit outstanding Letters of Credit Outstanding, Amount Common stock redeemed, shares Stock Redeemed or Called During Period, Shares Redemption price promissory note, principal amount Debt Instrument, Face Amount Redemption price promissory note, maturity date Debt Instrument, Maturity Date Final payment percent, principal Debt Instrument, Final Payment Percent, Principal Debt Instrument, Final Payment Percent, Principal Litigation settlement LitigationSettlement_PromissoryNote Amount to settle allegations surrounding the interest rate on the redemption note. Released accrued interest held in escrow Released accrued interest held in escrow Released accrued interest held in escrow Damages sought Loss Contingency, Damages Sought, Value Amount of fine for approved Stipulation and Settlement Litigation Settlement, Amount Awarded to Other Party Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] LIBOR London Interbank Offered Rate (LIBOR) [Member] Medium-term Notes Medium-term Notes [Member] Wynn/CA Plaza Property Owner, LLC And Wynn/CA Property Owner, LLC Wynn/CA Plaza Property Owner, LLC And Wynn/CA Property Owner, LLC [Member] Wynn/CA Plaza Property Owner, LLC And Wynn/CA Property Owner, LLC [Member] Retail Term Loan, Due 2025 Retail Term Loan Agreement [Member] Retail Term Loan Agreement [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Amount of term loan facility Long-term Debt, Gross Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Interest rate Line of Credit Facility, Interest Rate at Period End Proceeds from issuance of long-term debt Proceeds from Issuance of Long-term Debt Prepayment premium Debt Instrument, Prepayment Premium, Percentage Debt Instrument, Prepayment Premium, Percentage Income Tax Disclosure [Abstract] Deferred Tax Assets And Liabilities [Table] Deferred Tax Assets And Liabilities [Table] Deferred Tax Assets And Liabilities [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] U.S. Domestic Tax Authority [Member] Foreign Foreign Tax Authority [Member] Deferred Tax Assets And Liabilities Deferred Tax Assets And Liabilities [Line Items] Deferred Tax Assets And Liabilities [Line Items] Foreign tax credit carryforwards Deferred Tax Assets, Tax Credit Carryforwards, Foreign Disallowed interest expense carryforward Deferred Tax Asset, Disallowed Interest Expense Carryforwards Deferred Tax Asset, Disallowed Interest Expense Carryforwards Construction in progress Deferred Tax Assets, Construction in Progress Deferred Tax Assets, Construction in Progress Receivables, inventories, accrued liabilities and other Deferred Tax Asset Receivable Inventories Accrued Liabilities And Other Deferred tax asset receivable inventories accrued liabilities and other Stock-based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Other tax credit carryforwards Deferred Tax Assets, Other Tax Carryforwards Intangibles and related other Deferred Tax Asset Intangibles And Related Other Deferred tax asset intangibles and related other Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Property and equipment Deferred Tax Assets, Property, Plant and Equipment Pre-opening expenses Deferred Tax Asset Pre Opening Costs Non Current Deferred Tax Asset Pre Opening Costs Non Current Other Deferred Tax Assets, Other Deferred Tax Assets, Gross Deferred Tax Assets, Gross Less: valuation allowance Deferred Tax Assets, Valuation Allowance Deferred tax assets, net, total Deferred Tax Assets, Net of Valuation Allowance Property and equipment Deferred Tax Liabilities, Property, Plant and Equipment Redemption Note fair value Deferred Tax Liability, Redemption Note Fair Value Deferred Tax Liability, Redemption Note Fair Value Prepaid insurance, maintenance and taxes Deferred Tax Liabilities, Prepaid Expenses Other Deferred Tax Liabilities, Other Deferred Tax Liabilities, Gross, Noncurrent Deferred Tax Liabilities, Gross, Noncurrent Deferred tax assets, net, non current Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Net deferred tax asset Deferred Tax Assets, Net U.S. Federal statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Foreign tax credits, net of valuation allowance Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Percent Non-taxable foreign income Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent Foreign tax rate differential Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Global intangible low-taxed income Effective Income Tax Rate Reconciliation, Global Intangible Low-Taxed Income, Percent Effective Income Tax Rate Reconciliation, Global Intangible Low-Taxed Income, Percent Change in tax rate Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Repatriation of foreign earnings Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent Valuation allowance, other Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Other, net Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Retirement Benefits [Abstract] Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Multiemployer Plan Name [Axis] Multiemployer Plan Name [Axis] Multiemployer Plan Name [Domain] Multiemployer Plan Name [Domain] Southern Nevada Culinary and Bartenders Pension Plan Southern Nevada Culinary and Bartenders Pension Plan [Member] Southern Nevada Culinary and Bartenders Pension Plan [Member] Multiemployer Plan Type [Axis] Multiemployer Plan Type [Axis] Multiemployer Plans Type [Domain] Multiemployer Plans Type [Domain] Multi-employer Pension Plan Multiemployer Plans, Pension [Member] Defined Benefit Plan Disclosure Defined Benefit Plan Disclosure [Line Items] Multi-employer plan, period contributions Multiemployer Plan, Contributions by Employer Total contribution threshold percentage Total Contribution Threshold Percentage Total Contribution Threshold Percentage Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Subsidiary Issuer Subsidiary Issuer [Member] Wynn Las Vegas, LLC and Wynn Las Vegas Capital Corp Wynn Las Vegas, LLC and Wynn Las Vegas Capital Corp [Member] Wynn Las Vegas, LLC and Wynn Las Vegas Capital Corp Senior Notes Senior Notes [Member] 5 1/2% Senior Notes, Due May 15, 2027 5.25% Senior Notes, Due May 15, 2027 [Member] 5.25% Senior Notes, Due May 15, 2027 [Member] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Redemption period one Debt Instrument, Redemption, Period One [Member] Redemption period two Debt Instrument, Redemption, Period Two [Member] Redemption period three Debt Instrument, Redemption, Period Three [Member] Debt instrument, aggregate principal amount Debt redemption price as percentage of principal Debt Instrument, Redemption Price, Percentage Principal amount purchased Debt Instrument, Repurchased Face Amount Debt covenant, percentage of total assets Debt Instrument, Covenant, Percentage of Total Assets Debt Instrument, Covenant, Percentage of Total Assets Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Balance-beginning of year Unrecognized Tax Benefits Increases based on tax positions of the current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Reductions due to lapse in statutes of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Balance-end of year Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Investment securities Short-term Investments Receivables, net Receivables, Net, Current Inventories Inventory, Net Prepaid expenses and other Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property and equipment, net Property, Plant and Equipment, Net Restricted cash Restricted Cash and Cash Equivalents Investment securities Marketable Securities, Noncurrent Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Deferred income taxes, net Deferred Income Tax Assets, Net Other assets Other Assets, Noncurrent Total assets LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts and construction payables Accounts Payable, Current Customer deposits Customer Deposits, Current Gaming taxes payable Gaming Taxes Payable Current Carrying amount as of the balance sheet date for taxes payable (due within one year or within one normal operating cycle, if longer) based on gross gaming revenue in the jurisdictions in operation, subject to applicable jurisdictional adjustments. Accrued compensation and benefits Employee-related Liabilities, Current Accrued interest Interest Payable, Current Current portion of long-term debt Long-term Debt, Current Maturities Other accrued liabilities Other Accrued Liabilities, Current Total current liabilities Liabilities, Current Long-term debt Long-term Debt, Excluding Current Maturities Other long-term liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and contingencies (Note 15) Commitments and Contingencies Stockholders' equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Preferred stock, par value $0.01; 40,000,000 shares authorized; zero shares issued and outstanding Preferred Stock, Value, Issued Common stock, par value $0.01; 400,000,000 shares authorized; 122,115,585 and 116,391,753 shares issued; 107,232,026 and 103,005,866 shares outstanding, respectively Common Stock, Value, Issued Treasury stock, at cost; 14,883,559 and 13,385,887 shares, respectively Treasury Stock, Value Additional paid-in capital Additional Paid in Capital Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Retained earnings Retained Earnings (Accumulated Deficit) Total Wynn Resorts, Limited stockholders' equity Stockholders' Equity Attributable to Parent Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Total stockholders' equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and stockholders' equity Liabilities and Equity Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Performance Guarantee Performance Guarantee [Member] Senior Term Loan Facility, Due 2022 Senior Term Loan Facility, Due 2022 [Member] Senior Term Loan Facility, Due 2022 [Member] Amended Common Terms Agreement, Senior Term Loan Facility, Due June 2022 Amended Common Terms Agreement, Senior Term Loan Facility, Due June 2022 [Member] Amended Common Terms Agreement, Senior Term Loan Facility, Due June 2022 [Member] Bank Guarantee Reimbursement Agreement Bank Guarantee Reimbursement Agreement [Member] Bank Guarantee Reimbursement Agreement Wynn Macau Wynn Macau [Member] Wynn Macau [Member] Term Loans Notes Payable to Banks [Member] Secured Debt Secured Debt [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Conditional increase limit on line of credit Line of Credit Facility, Conditional, Increase Limit Line of Credit Facility, Conditional, Increase Limit Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Periodic principal payment percent Debt Instrument, Periodic Payment Percent, Principal Debt Instrument, Periodic Payment Percent, Principal Interest rate during period on debt Debt Instrument, Interest Rate During Period Commitment fee percentage Line of Credit Facility, Commitment Fee Percentage Consolidated leverage ratio, minimum Consolidated Leverage Ratio Minimum Numerator Consolidated leverage ratio minimum numerator Debt covenant, maximum leverage ratio Debt Instrument, Covenant Terms, Leverage Ratio Debt Instrument, Covenant Terms, Leverage Ratio Consolidated leverage ratio excess cash flow percentage Percentage Of Annual Excess Cash Flows To Be Repaid Under New Credit Facility Percentage of Excess Cash Flow That May Be Required To Be Repaid Interest coverage ratio, minimum Interest Coverage Ratio Minimum Numerator Interest coverage ratio minimum numerator Bank guarantee carrying amount Guarantor Obligations, Current Carrying Value Period after the end of the term of the concession agreement that the guarantee amount will remain unchanged Guarantor Obligations, Current Carrying Value Remains Unchanged, Period Post End of Term of Concession Agreement Guarantor Obligations, Current Carrying Value Remains Unchanged, Period Post End of Term of Concession Agreement Maximum guarantee by Macau government Annual Fee Paid To Bank Annual Fee Paid To Bank United States Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Total Income Loss From Continuing Operations Before Income Taxes And Minority Interest Income (Loss) from Continuing Operations before Income Taxes and Minority Interest 2018 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 2019 Long-term Debt, Maturities, Repayments of Principal in Year Two 2020 Long-term Debt, Maturities, Repayments of Principal in Year Three 2021 Long-term Debt, Maturities, Repayments of Principal in Year Four 2022 Long-term Debt, Maturities, Repayments of Principal in Year Five Thereafter Long-term Debt, Maturities, Repayments of Principal after Year Five Long-term Debt, Gross Debt Instrument, Unamortized Discount (Premium), Net Debt Instrument, Unamortized Discount (Premium), Net Fair Value Adjustment of Debt Fair Value Adjustment for Redemption Note Fair Value Adjustment for Redemption Note Long-term debt total Long-term Debt Equity [Abstract] Class of Treasury Stock [Table] Class of Treasury Stock [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Total Wynn Resorts, Limited stockholders' equity (deficit) Parent [Member] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Equity Repurchase Program Equity Repurchase Program [Member] Equity Repurchase Program [Member] Equity, Class of Treasury Stock Equity, Class of Treasury Stock [Line Items] Authorized amount under repurchase program Stock Repurchase Program, Authorized Amount Stock repurchases, shares Treasury Stock, Shares, Acquired Net cost for common stock purchased Treasury Stock, Value, Acquired, Cost Method Repurchase authority remaining under the program Stock Repurchase Program, Remaining Authorized Repurchase Amount Dividend paid (per share) Common Stock, Dividends, Per Share, Cash Paid Cash dividends declared Dividends, Cash Dividends declared per common share (usd per share) Common Stock, Dividends, Per Share, Declared Common shares redeemed and canceled Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Payments to Acquire Property, Plant, and Equipment Payments to Acquire Property, Plant, and Equipment Accounting Policies [Abstract] Principles of Consolidation Consolidation, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Cash, Cash Equivalents, and Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Investment Securities Marketable Securities, Policy [Policy Text Block] Accounts Receivable and Credit Risk Trade and Other Accounts Receivable, Policy [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Capitalized Interest Interest Capitalization, Policy [Policy Text Block] Intangible Assets Goodwill and Intangible Assets, Policy [Policy Text Block] Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Debt Issuance Costs Debt, Policy [Policy Text Block] Redemption Price Promissory Note Redemption Price Promissory Note Policy [Policy Text Block] Redemption Price Promissory Note [Policy Text Block] Derivative Financial Instruments Derivatives, Policy [Policy Text Block] Gaming Taxes Gaming Taxes Policy [Text Block] Gaming Taxes Policy Advertising Costs Advertising Costs, Policy [Policy Text Block] Pre-Opening Expenses Start-up Activities, Cost Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Foreign Currency Foreign Currency Transactions and Translations Policy [Policy Text Block] Comprehensive Income Comprehensive Income, Policy [Policy Text Block] Fair Value Measurements Fair Value of Financial Instruments, Policy [Policy Text Block] Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Stock-Based Compensation Compensation Related Costs, Policy [Policy Text Block] Recently Issued and Adopted Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Preferred stock, par value Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized Preferred Stock, Shares Authorized Preferred stock, shares issued Preferred Stock, Shares Issued Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Common Stock, Shares, Issued Common stock, shares outstanding Common Stock, Shares, Outstanding Treasury stock, shares Treasury Stock, Shares Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Statement of Comprehensive Income [Abstract] Tax on Redemption Note credit risk adjustment Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, after Reclassification Adjustment, Tax Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Deferred income taxes Deferred Income Tax Expense (Benefit) Change in Redemption Note fair value Fair Value Adjustment of Debt Fair Value Adjustment of Debt Property charges and other Property Charges and Other The expense charged against earnings to eliminate the capitalized cost of projects that have been terminated during the reporting period and other operating expenses, which are added back to net income when calculating cash provided by (used in) operations using the indirect method. Amortization of debt issuance costs Amortization Of Deferred Financing Costs and Other Amortization and or write-offs of cash outflows paid to third parties in connection with debt origination, which will occur over the remaining maturity period of the associated long-term debt. Stock-based compensation expense Allocated Share-based Compensation Expense Provision (benefit) for doubtful accounts Provision for Doubtful Accounts Change in derivatives fair value Unrealized Gain (Loss) on Derivatives Loss on extinguishment of debt Losses On Extinguishment Of Debt Amount represents (1) the difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity and/or (2) the write-off of amounts capitalized as deferred financing costs associated with the extinguishment prior to maturity. Excess tax benefits from stock-based compensation Excess Tax Benefit from Share-based Compensation, Operating Activities Increase (decrease) in cash from changes in: Increase (Decrease) in Operating Capital [Abstract] Receivables, net Increase (Decrease) in Receivables Inventories and prepaid expenses and other Increase Decrease In Inventories Prepaid Expenses And Other Current Assets The net change during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities, the net change during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods and the net change during the reporting period in other operating assets not otherwise defined in the taxonomy. Customer deposits Increase (Decrease) in Customer Deposits Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Capital expenditures, net of construction payables and retention Purchase of intangible and other assets Payments For Intangible Assets And Other Assets Net cash inflow or (outflow) from intangible assets and/or other assets not otherwise defined in the taxonomy. Proceeds from sale of assets Proceeds from Sale of Productive Assets Proceeds from the sale or maturity of investment securities Proceeds from Sale and Maturity of Marketable Securities Purchase of investment securities Payments to Acquire Available-for-sale Securities, Debt Return of investment in unconsolidated affiliates Proceeds from Equity Method Investment, Distribution, Return of Capital Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Repayments of long-term debt Repayments of Long-term Debt Payments for financing costs Payments of Debt Issuance Costs Payment to acquire derivatives Payments for Derivative Instrument, Financing Activities Proceeds from issuance of common stock, net of issuance costs Proceeds from Issuance of Common Stock Dividends paid Payments of Dividends Distribution to noncontrolling interest Payments to Noncontrolling Interests Repurchase of common stock Payments for Repurchase of Common Stock Proceeds from exercise of stock options Proceeds from Stock Options Exercised Shares of subsidiary repurchased for share award plan Shares of Subsidiary Repurchased for Share Award Plan Amount of cash outflow by majority owned subsidiary for the repurchase of its shares used in employee share award plan Sale of ownership interest in subsidiaries Proceeds from Sales of Business, Affiliate and Productive Assets Income taxes paid from sale of ownership interest of subsidiary Income Taxes Paid from Sale of Ownership Interest in Subsidiary Income taxes paid from a combination of transactions in which noncurrent assets are sold, which may include the sale of a business, an investment in an affiliate (including an equity method investee), property, plant and equipment and intangible assets. Excludes sales of trading, available-for-sale, and held-to-maturity securities Payments on long-term land concession obligation Proceeds from (Payments for) Other Financing Activities Excess tax benefits from stock-based compensation Excess Tax Benefit from Share-based Compensation, Financing Activities Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate on cash Effect of Exchange Rate on Cash and Cash Equivalents Cash, cash equivalents and restricted cash: Cash and Cash Equivalents, Period Increase (Decrease) [Abstract] Increase (decrease) in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Balance, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Balance, end of period Supplemental cash flow disclosures Supplemental Cash Flow Information [Abstract] Cash paid for interest, net of amounts capitalized Interest Paid, Net Cash paid for income taxes Income Taxes Paid, Net Property and equipment acquired under capital lease Capital Lease Obligations Incurred Stock-based compensation capitalized into construction Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount Liability settled with shares of common stock Stock Issued Change in accounts and construction payables related to property and equipment Change In Property And Equipment Included In Accounts And Construction Payables Change in Property and Equipment Included in Accounts and Construction Payables Change in dividends payable on unvested restricted stock included in other accrued liabilities Cash In Dividend Payable The increase (decrease) during the reporting period in dividends payable on unvested stock. Note receivable acquired from sale of ownership interest in subsidiary Note receivable acquired from sale of ownership interest in subsidiary Note receivable acquired from sale of ownership interest in subsidiary Revenue Recognition [Abstract] Disaggregation of Revenues Schedule of Disaggregation of Revenues and Contract Liabilities [Table Text Block] [Table Text Block] for Schedule of Disaggregation of Revenues and Contract Liabilities [Table] Schedule of Customer Contract Liabilities Schedule of Customer Contract Liabilities [Table Text Block] [Table Text Block] for Schedule of Customer Contract Liabilities [Table] Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Current Reporting Status Entity Current Reporting Status Entity Voluntary Filers Entity Voluntary Filers Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Public Float Entity Public Float Schedule of Intangible Assets [Table] Schedule Of Intangible Assets [Table] Schedule of Intangible Assets [Table] Indefinite-lived Intangible Assets by Major Class Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Trademarks Trademarks [Member] Water Rights Water Rights [Member] Water Rights [Member] Finite-Lived Intangible Assets by Major Class Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Macau Gaming Concession Macau Gaming Concession [Member] Macau Gaming Concession [Member] Massachusetts Gaming License Massachusetts Gaming License [Member] Massachusetts Gaming License [Member] Undeveloped Land - Las Vegas Leases, Acquired-in-Place [Member] Intangible Assets Intangible Assets [Line Items] Intangible Assets [Line Items] Finite-lived intangible assets, gross Finite-Lived Intangible Assets, Gross Less: accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Finite-lived intangible assets, net Finite-Lived Intangible Assets, Net Indefinite-lived intangible assets Indefinite-Lived Intangible Assets (Excluding Goodwill) Total intangible assets, net Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Stock-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Long-Term Debt Long-term Debt [Text Block] Investments, Debt and Equity Securities [Abstract] Schedule of Investment Securities Available-for-sale Securities [Table Text Block] Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Line of Credit Line of Credit [Member] Commitment Letter Commitment Letter [Member] Commitment Letter [Member] Term Debt Instrument, Term Amount terminated Line of Credit Facility, Maximum Borrowing Capacity, Amount Terminated Line of Credit Facility, Maximum Borrowing Capacity, Amount Terminated Federal, Current Current Federal Tax Expense (Benefit) Current State and Local Tax Expense (Benefit) Current State and Local Tax Expense (Benefit) Foreign, Current Current Foreign Tax Expense (Benefit) Current, Total Current Income Tax Expense (Benefit) Federal, Deferred Deferred Federal Income Tax Expense (Benefit) State, Deferred Deferred State and Local Income Tax Expense (Benefit) Deferred, Total Total Deferred Income Tax Expense Benefit Federal And Foreign Total deferred income tax expense benefit federal and foreign Income tax benefit (provision), total Income Tax Expense (Benefit) Valuation and Qualifying Accounts [Abstract] Valuation and Qualifying Accounts Disclosure [Table] Valuation and Qualifying Accounts Disclosure [Table] Valuation Allowances and Reserves Type Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Valuation Allowances and Reserves [Domain] Allowance for Doubtful Accounts Allowance for Doubtful Accounts [Member] Valuation Allowance of Deferred Tax Assets Valuation Allowance of Deferred Tax Assets [Member] Valuation and Qualifying Accounts Disclosure [Line Items] Valuation and Qualifying Accounts Disclosure [Line Items] Beginning balance Valuation Allowances and Reserves, Balance Provisions for Doubtful Accounts Valuation Allowances and Reserves, Additions for Charges to Cost and Expense Write-offs, Net of Recoveries Valuation Allowances and Reserves, Additions for Adjustments Ending balance Fair value of debt instrument excluding the Redemption Note Debt Instrument, Fair Value, Excluding The Redemption Note Debt Instrument, Fair Value, Excluding The Redemption Note Long-term debt excluding the Redemption Note Long Term Debt Excluding Redemption Note Long Term Debt Excluding Redemption Note Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring Fair Value, Measurements, Recurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Quoted Market Prices in Active Markets (Level 1) Fair Value, Inputs, Level 1 [Member] Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 Fair Value, Inputs, Level 3 [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Cash equivalents Cash Equivalents, at Carrying Value Available-for-sale securities Available-for-sale Securities Restricted cash Restricted Cash, Fair Value Disclosure Restricted Cash, Fair Value Disclosure Derivative Liability Derivative Liability Redemption Note Debt Instrument, Fair Value Disclosure Revenue Revenue Recognition [Text Block] Revenue Recognition [Text Block] Other comprehensive income (loss): Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract] Foreign currency translation adjustments, before and after tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Change in net unrealized loss (gain) on investment securities, before and after tax Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Redemption Note credit risk adjustment, net of tax of $2,735 Redemption Note settlement credit risk adjustment Redemption Note settlement credit risk adjustment Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Less: comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income attributable to Wynn Resorts, Limited Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule Of Finite And Indefinite Lived Intangible Assets [Table] Schedule Of Finite And Indefinite Lived Intangible Assets [Table] Schedule Of Finite And Indefinite Lived Intangible Assets [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Land Land [Member] Assets Leased to Others Assets Leased to Others [Member] Lease Arrangement, Type [Axis] Lease Arrangement, Type [Axis] Lease Arrangement, Type [Domain] Lease Arrangement, Type [Domain] Schedule Of Finite And Indefinite Lived Intangible Assets Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items] Schedule Of Finite And Indefinite Lived Intangible Assets [Line Items] Intangible assets, useful life, years Finite-Lived Intangible Asset, Useful Life Future amortization expense, 2019 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Future amortization expense, 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Two Future amortization expense, 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Three Future amortization expense, 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Four Area of land acquired Area Of Land, Acquired Area Of Land, Acquired Ground lease payments, 2019 Contractual Obligation, Due in Next Fiscal Year Ground lease payments, 2020 Contractual Obligation, Due in Second Year Ground lease payments, 2021 Contractual Obligation, Due in Third Year Ground lease payments, 2022 Contractual Obligation, Due in Fourth Year Ground lease payments, 2023 Contractual Obligation, Due in Fifth Year Ground lease payments, thereafter Contractual Obligation, Due after Fifth Year Expected amortization of associated intangible assets, each year 2019-2096 Finite-Lived Intangible Assets, Annual Amortization Expense, Excluding Final Year Finite-Lived Intangible Assets, Annual Amortization Expense, Excluding Final Year Expected amortization of associated intangible assets, 2097 Finite-Lived Intangible Assets, Amortization Expense, Final Year Finite-Lived Intangible Assets, Amortization Expense, Final Year Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Domestic and Foreign Corporate Bonds Domestic And Foreign Corporate Bonds [Member] Domestic And Foreign Corporate Bonds [Member] Schedule of Available-for-sale Securities Schedule of Available-for-sale Securities [Line Items] Proceeds from sale of long-term investments Proceeds from Sale of Long-term Investments Available-for-sale securities, Amortized cost Available-for-sale Securities, Amortized Cost Basis Available-for-sale securities, Gross unrealized gains Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax Available-for-sale securities, Gross unrealized losses Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax Other-than-temporary impairment losses Other than Temporary Impairment Losses, Investments Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Schedule of Restricted Cash and Cash Equivalents Restrictions on Cash and Cash Equivalents [Table Text Block] Schedule of Receivables, net Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Estimated Useful Lives of Assets Schedule Of Estimated Useful Lives Of Assets Table [Text Block] Schedule of estimated useful lives of assets [Table Text Block]. Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Assets and Liabilities Carried at Fair Value Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Shares used in Calculation of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Reconciliation of Amounts Previously Reported and Resulting Impacts from Adoption of New Revenue Recognition Guidance Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2016-01 Accounting Standards Update 2016-01 [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest Rate Collar Interest Rate Collar [Member] Interest Rate Collar [Member] Promissory Note Notes Payable, Other Payables [Member] Summary of Significant Accounting Policies Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Percentage of credit markers due from customers residing outside of the United States Percentage Of Credit Markers Due From Customers Residing Outside Of United States Percentage of credit markers due from customers residing outside of the United States. Capitalized interest Interest Costs Capitalized Debt instrument, fair value Term of interest rate collar Derivative, Term of Contract Interest rate swap notional amount Derivative Asset, Notional Amount Floor rate Derivative, Floor Interest Rate Ceiling rate Derivative, Cap Interest Rate Fair value of interest rate collar, liability Derivative Liability, Fair Value, Gross Liability Gaming tax expenses Gaming Tax Expenses Gaming tax expense. Total advertising costs Advertising Expense Effect of change in accounting Cumulative Effect of New Accounting Principle in Period of Adoption Change in restricted cash Increase (Decrease) in Restricted Cash Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Wynn Resorts Limited 2014 Omnibus Incentive Plan Wynn Resorts Limited 2014 Omnibus Incentive Plan [Member] Omnibus Plan Share Option Plan Share Option Plan [Member] Share Option Plan [Member] Share-based Compensation Arrangement by Share-based Payment Award Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected term (years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Buildings and improvements Buildings and Improvements, Gross Land and improvements Land Furniture, fixtures and equipment Furniture and Fixtures, Gross Leasehold interests in land Leasehold Interest In Land Gross Leasehold interest in land, gross Airplanes Flight Equipment, Gross Construction in progress Construction in Progress, Gross Property and equipment, gross Property, Plant and Equipment, Gross Less: accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property and equipment, net Noncontrolling Interest [Abstract] Noncontrolling Interests Noncontrolling Interest Disclosure [Text Block] 4 7/8% Senior Notes, due 2024 Four and Seven Over Eight Percentage Wynn Macau Limited Senior Notes Due October One Two Thousand Twenty Four [Member] Four and Seven Over Eight Percentage Wynn Macau Limited Senior Notes Due October One Two Thousand Twenty Four [Member] 5 1/2% Senior Notes, due 2027 Five And One Over Two Percentage Wynn Macau Limited Senior Notes Due October One Two Thousand Twenty Seven [Member] Five And One Over Two Percentage Wynn Macau Limited Senior Notes Due October One Two Thousand Twenty Seven [Member] Change of control Change in tax laws or tax positions Debt Instrument, Redemption, Period Four [Member] Material adverse effect on the financial condition due to licenses, permits and concessions Debt Instrument, Redemption, Period Five [Member] Redemption percentage, redeemable from cash proceeds from equity offerings Debt Instrument, Redemption Percentage, Redeemable From Cash Proceeds From Equity Offerings, Maximum Debt Instrument, Redemption Percentage, Redeemable From Cash Proceeds From Equity Offerings, Maximum Debt redemption price as percentage of principal Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Income Statement [Abstract] Operating revenues: Revenues [Abstract] Casino Casino Revenue Rooms Occupancy Revenue Food and beverage Food and Beverage Revenue Entertainment, retail and other Entertainment Retail And Other Revenue Revenue earned during the period from shows, retail outlets, convention space, spa, salon, wedding salon, golf course and other. Total operating revenues Revenue, Net Operating expenses: Costs and Expenses [Abstract] Casino Casino Expenses Rooms Occupancy Costs Food and beverage Food and Beverage, Cost of Sales Entertainment, retail and other Entertainment Retail And Other Costs Costs incurred during the period related to generating revenue from shows, retail outlets, convention space, spa, salon, wedding salon, golf course, and other operations. General and administrative Selling, General and Administrative Expense Pre-opening Pre-Opening Costs Property charges and other Project Abandonment Costs The aggregate amount of expenses charged against earnings to eliminate the capitalized costs of projects abandoned during the reporting period, expenses associated with business termination activities and other expenses. Total operating expenses Costs and Expenses Operating income Operating Income (Loss) Other income (expense): Nonoperating Income (Expense) [Abstract] Interest income Investment Income, Interest Interest expense, net of amounts capitalized Interest Expense Change in derivatives fair value Gain (Loss) on Derivative Instruments, Net, Pretax Change in Redemption Note fair value Gain (loss) on extinguishment of debt Other Other Nonoperating Income (Expense) Other income (expense), net Nonoperating Income (Expense) Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Benefit (provision) for income taxes Net income Less: net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Net income attributable to Wynn Resorts, Limited Net Income (Loss) Attributable to Parent Basic and diluted income per common share: Earnings Per Share, Basic and Diluted [Abstract] Net income attributable to Wynn Resorts, Limited: Earnings Per Share [Abstract] Earnings Per Share, Basic Earnings Per Share, Basic Earnings Per Share, Diluted Earnings Per Share, Diluted Weighted average common shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Property and Equipment, Net Property, Plant and Equipment [Table Text Block] Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] As Previously Reported Scenario, Previously Reported [Member] Adoption of ASC 606 Restatement Adjustment [Member] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Revenue, Initial Application Period Cumulative Effect Transition [Line Items] Gross revenues Gross Revenue Aggregate revenue earned from hotel, casino, food and beverage, entertainment, retail, and other operations. This amount includes the retail value of complimentary provided on a routine basis as part of our normal day to day operations. Promotional allowances Promotional Allowances Operating revenues Operating expenses Operating income Thereafter Other Commitment, Due after Fifth Year Total Other Commitment Capital Leased Assets, Gross Capital Leased Assets, Gross Consolidated Income Loss Before Taxes for Domestic and Foreign Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Provision (Benefit) for Income Taxes Schedule Of Provision For Income Tax Table [Text Block] Schedule of provision for income tax [Table text block] Income Taxes (Federal Statutory Corporate Tax Rate) Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Net Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Reconciliation of Unrecognized Tax Benefits Summary of Income Tax Contingencies [Table Text Block] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Stock Options Employee Stock Option [Member] Performance Shares Performance Shares [Member] WRL 2002 Plan WRL 2002 Plan [Member] WRL 2002 Plan [Member] Share Award Plan Share Award Plan [Member] Share Award Plan [Member] Payments to Employees Payments to Employees Shares authorized for issuance Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Expiration period Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Aggregate amount of common stock available for grant Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Unrecognized compensation, stock options Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Unrecognized compensation cost, weighted average period Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Unvested awards compensation not yet recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Unvested awards compensation costs period of recognition Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Stock based compensation costs Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost Tax benefit from compensation expense Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Tax benefits (loss) realized from option exercises Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options Stock options granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Long-Term Debt Schedule of Long-term Debt Instruments [Table Text Block] Scheduled Maturities of Long-Term Debt Schedule of Maturities of Long-term Debt [Table Text Block] Extinguishment of Debt [Axis] Extinguishment of Debt [Axis] Extinguishment of Debt, Type [Domain] Extinguishment of Debt, Type [Domain] 5 3/8% Wynn Las Vegas First Mortgage Notes, Due March 15, 2022 Five And Three Over Eight Percentage Wynn Las Vegas First Mortgage Notes Due March Fifteen Two Thousand Twenty Two [Member] Five And Three Over Eight Percentage Wynn Las Vegas First Mortgage Notes Due March Fifteen Two Thousand Twenty Two [Member] First Mortgage Notes Mortgages [Member] Extinguishment of Debt, Amount Extinguishment of Debt, Amount Extinguishment of debt, amount premium Extinguishment Of Debt, Amount Premium Extinguishment of Debt, Amount Premium Schedule of Disaggregation of Revenues and Contract Liabilities [Table] Schedule of Disaggregation of Revenues and Contract Liabilities [Table] Schedule of Disaggregation of Revenues and Contract Liabilities [Table] Schedule of Disaggregation of Revenues and Contract Liabilities [Line Items] Schedule of Disaggregation of Revenues and Contract Liabilities [Line Items] [Line Items] for Schedule of Disaggregation of Revenues and Contract Liabilities [Table] Casino Occupancy Food and Beverage Entertainment Retail And Other Revenues Revenues Casino outstanding chips and front money deposits Casino outstanding chips and front money deposits Casino outstanding chips and front money deposits Change in outstanding chips and front money deposits Increase Decrease in outstanding chips and front money deposits Increase Decrease in outstanding chips and front money deposits Advanced room deposits and ticket sales Advanced room deposits and ticket sales Advanced room deposits and ticket sales Change in advanced room deposits and ticket sales Change in advanced room deposits and ticket sales Change in advanced room deposits and ticket sales Other gaming related liabilities Other gaming related liabilities Other gaming related liabilities Change in other gaming related liabilities Change in other gaming related liabilities Change in other gaming related liabilities Loyalty program liabilities Loyalty programs Loyalty programs Change in loyalty program liabilities Change in loyalty program liabilities Change in loyalty program liabilities Total customer contract liabilities Total Customer Contract Liabilities Total Customer Contract Liabilities Change in total customer contract liabilities Change in total customer contract liabilities Change in total customer contract liabilities Operations by Segment Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Capital Expenditures Schedule of Capital Expenditures [Table Text Block] Schedule of Capital Expenditures [Table Text Block] Assets and Capital Expenditures by Segment Reconciliation of Assets from Segment to Consolidated [Table Text Block] Long-lived Assets by Geographic Area Long-lived Assets by Geographic Areas [Table Text Block] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Casino Casino [Member] Casino [Member] Rooms Rooms [Member] Rooms [Member] Food and Beverage Food And Beverage [Member] Food And Beverage [Member] Entertainment, retail and other Entertainment Retail And Other [Member] Entertainment Retail And Other [Member] General and Administrative Expense General and Administrative Expense [Member] Pre-Open Costs Pre-Open Costs [Member] Pre-Open Costs [Member] Property charges and other Property Charges and Other [Member] Property Charges and Other [Member] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Stock based compensation costs 2019 Operating Leases, Future Minimum Payments Receivable, Current 2020 Operating Leases, Future Minimum Payments Receivable, in Two Years 2021 Operating Leases, Future Minimum Payments Receivable, in Three Years 2022 Operating Leases, Future Minimum Payments Receivable, in Four Years 2023 Operating Leases, Future Minimum Payments Receivable, in Five Years Thereafter Operating Leases, Future Minimum Payments Receivable, Thereafter Total Operating Leases, Future Minimum Payments Receivable Segment Information Segment Reporting Disclosure [Text Block] Intangible Assets, net Intangible Assets Disclosure [Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Legal Entity of Counterparty, Type [Axis] Legal Entity of Counterparty, Type [Axis] Legal Entity Type of Counterparty [Domain] Legal Entity Type of Counterparty [Domain] Casino Hotel Hotel [Member] Retail Leases and Other Retail Leases And Other [Member] Retail Leases And Other [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Receivables, gross Accounts Receivable, Gross, Current Less: allowance for doubtful accounts Allowance for Doubtful Accounts Receivable, Current Receivables, net Pre-Opening Expenses Property Charges and Other Number of Reportable Segments Number of Reportable Segments Operating revenues Adjusted Property EBITDA Adjusted Property Ebitda Earnings Before Interest, Taxes, Depreciation, Amortization, Pre-opening Costs, Property Charges And Other, Corporate Expenses, Stock-Based Compensation, And Other Non-Operating Income And Expenses And Includes Equity In Income From Unconsolidated Affiliates Other operating expenses Other Operating Costs And Expenses [Abstract] Other Operating Costs and Expenses [Abstract] Corporate expenses and other Corporate Expenses And Other Corporate Expenses And Other Stock-based compensation (2) Share-based Compensation Total other operating expenses Other Cost and Expense, Operating Other non-operating income and expenses Interest expense, net of amounts capitalized Gain (loss) on extinguishment of debt Income before income taxes Net income attributable to noncontrolling interest Excluded amounts Statement of Stockholders' Equity [Abstract] Tax expense on sale of ownership interest in subsidiary Tax expense on sale of ownership interest in subsidiary Tax expense on sale of ownership interest in subsidiary Tax on change in accounting for credit risk Operating Leases Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2020 Operating Leases, Future Minimum Payments, Due in Two Years 2021 Operating Leases, Future Minimum Payments, Due in Three Years 2022 Operating Leases, Future Minimum Payments, Due in Four Years 2023 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total Operating Leases, Future Minimum Payments Due Capital Leases Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2019 Capital Leases, Future Minimum Payments Due, Next Twelve Months 2020 Capital Leases, Future Minimum Payments Due in Two Years 2021 Capital Leases, Future Minimum Payments Due in Three Years 2022 Capital Leases, Future Minimum Payments Due in Four Years 2023 Capital Leases, Future Minimum Payments Due in Five Years Thereafter Capital Leases, Future Minimum Payments Due Thereafter Total minimum lease payments Capital Leases, Future Minimum Payments Due Less: Amount representing interest Capital Leases, Future Minimum Payments, Interest Included in Payments Total capital lease net minimum payments Capital Leases, Future Minimum Payments, Net Minimum Payments Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Base Rate Base Rate [Member] WA Senior Term Loan Facility II WA Senior Term Loan Facility II [Member] WA Senior Term Loan Facility II [Member] WA Senior Term Loan Facility I WA Senior Term Loan Facility I [Member] WA Senior Term Loan Facility I [Member] WA Senior Term Loan Facility I, Due November 2020 WA Senior Term Loan Facility I, Due November 2020 [Member] WA Senior Term Loan Facility I, Due November 2020 WA Senior Term Loan Facility I, Due December 2021 WA Senior Term Loan Facility I, Due December 2021 [Member] WA Senior Term Loan Facility I, Due December 2021 [Member] WA Senior Revolving Credit Facility WA Senior Revolving Credit Facility [Member] WA Senior Revolving Credit Facility [Member] WA Senior Revolving Credit Facility, Due November 2019 WA Senior Revolving Credit Facility, Due November 2019 [Member] WA Senior Revolving Credit Facility, Due November 2019 [Member] WA Senior Revolving Credit Facility Due December 2021 WA Senior Revolving Credit Facility Due December 2021 [Member] WA Senior Revolving Credit Facility Due December 2021 [Member] Periodic payment Debt Instrument, Periodic Payment Balloon payment due at maturity Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid Annual principal payment Debt Instrument, Annual Principal Payment Fee required for unborrowed amounts, percentage per annum Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Maximum consolidated senior secured net leverage ratio Debt Instrument, Covenant Terms, Maximum Consolidated Senior Secured Net Leverage Ratio Debt Instrument, Covenant Terms, Maximum Consolidated Senior Secured Net Leverage Ratio Minimum consolidated EBITDA Debt Instrument, Covenant Terms, Minimum Consolidated EBITDA Debt Instrument, Covenant Terms, Minimum Consolidated EBITDA Investment Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Weighted average common shares outstanding (used in calculation of basic earnings per share) Weighted average common and common equivalent shares outstanding (used in calculation of diluted earnings per share) Potential dilution from the assumed exercise of stock options and nonvested stock Weighted Average Number Diluted Shares Outstanding Adjustment Anti-dilutive stock options excluded from the calculation of diluted earnings per share Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Schedule II- Valuation and Qualifying Accounts Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Shares: Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Nonvested, beginning of period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Nonvested, end of period Weighted Average Grant Date Fair Value: Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Nonvested, beginning of period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Forfeited Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Nonvested, end of period Weighted average grant date fair value Fair value of shares vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Option Activity Share-based Compensation, Stock Options, Activity [Table Text Block] Restricted Stock Award Activity Schedule of Nonvested Share Activity [Table Text Block] Restricted Stock Award Activity Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Share-Based Compensation Allocated Costs Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Valuation Assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Debt Instrument, Maturity Date Debt redemption date Debt Instrument Cut Off Date For Specified Redemption Price Debt Instrument Cut Off Date For Specified Redemption Price Percentage of principal repayment on the event of change of control Percentage Of Principal Repayment On Event Of Change Of Control Percentage Of Principal Repayment On Event Of Change Of Control Payment default classification period for interest payment Payment Default Classification Period For Interest Payment Payment Default Classification Period For Interest Payment Amount paid to execute indenture Debt Instrument, Amount Paid to Execute Indenture Debt Instrument, Amount Paid to Execute Indenture Debt issuance costs Debt Issuance Costs, Net Cash Cash Total cash and cash equivalents Total cash, cash equivalents and restricted cash Bridge Loan Bridge Loan [Member] Bridge Facility Bridge Facility [Member] Bridge Facility [Member] Benefit Plans Schedule of Defined Benefit Plans Disclosures [Table Text Block] Variable Interest Entities [Abstract] Variable Interest Entities [Abstract] Variable Interest Entity Disclosure Variable Interest Entity Disclosure [Text Block] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Airplanes Airplanes [Member] Airplanes [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Depreciation Depreciation Number of airplanes sold Property, Plant and Equipment, Disposals, Number of Units Disposed Property, Plant and Equipment, Disposals, Number of Units Disposed Net book value of airplanes sold Property, Plant and Equipment, Disposals Proceeds for sale of airplanes Proceeds from Sale of Property, Plant, and Equipment Loss on disposal Gain (Loss) on Disposition of Property Plant Equipment Payments to acquire land Payments to Acquire Land Land acquired Property, Plant and Equipment, Additions Finite-lived intangible assets acquired Finite-lived Intangible Assets Acquired Future Minimum Rental Receivable Under Operating Lease Lessor, Operating Leases [Text Block] Future Minimum Rental Payable Under Non-Cancelable Operating Lease Lessee, Operating Lease, Disclosure [Table Text Block] Other Commitments Other Commitments [Table Text Block] Organization, Consolidation and Presentation of Financial Statements Disclosure [Table] Organization Consolidation And Presentation Of Financial Statements Disclosure [Table] Organization, Consolidation and Presentation of Financial Statements Disclosure [Table] Retail Joint Venture Retail Joint Venture [Member] Retail Joint Venture [Member] Retail Retail [Member] Retail [Member] Food and Beverage Showrooms Showrooms [Member] Showrooms [Member] Nightclubs and Beachclubs Nightclubs [Member] Nightclubs [Member] Organization Consolidation And Presentation Of Financial Statements Disclosure Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items] Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] Noncontrolling Interest, Ownership Percentage by Parent Noncontrolling Interest, Ownership Percentage by Parent Number of hotel Number Of Hotel Towers Number of Hotel Towers Functional Area Square Footage Functional Area Square Footage Functional Area Square Footage. Ownership Percentage Ownership Percentage Ownership Percentage Number of restaurants Number of Restaurants Number of facilities Number Of Facilities Number of Facilities Number of outlets Number Of Food And Beverage Outlets Number Of Food And Beverage Outlets. Number of showrooms Number Of Showrooms Number of Showrooms. Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Wynn Retail Wynn Retail [Member] Wynn Retail [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Prepaid Expenses and Other Current Assets [Member] Prepaid Expenses and Other Current Assets [Member] Other Noncurrent Assets [Member] Other Noncurrent Assets [Member] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Net book value of assets and liabilities transferred to Retail Joint Venture Real Estate Investments, Joint Ventures Contribution of Property Contribution of Property Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Noncontrolling Interest in Joint Ventures Noncontrolling Interest in Joint Ventures Proceeds from Real Estate and Real Estate Joint Ventures Proceeds from Divestiture of Interest in Joint Venture Due from Joint Ventures, Noncurrent Due from Joint Ventures, Noncurrent Total assets Total liabilities Long-term Debt 5 1/2% Senior Notes, Due March 1, 2025 Five and One Half Percent Senior Notes Due March One Twenty Twenty Five [Member] Five and One Half Percent Senior Notes Due March One Twenty Twenty Five [Member] Income Taxes Income Tax Disclosure [Text Block] Debt Covenant Components [Axis] Debt Covenant Components [Axis] Debt Covenant Components [Axis] Debt Covenant Components [Domain] Debt Covenant Components [Domain] [Domain] for Debt Covenant Components [Axis] Mandatory Prepayments of Indebtedness Equal to 50% of Excess Cash Flow Mandatory Prepayments of Indebtedness Equal to 50 Percent of Excess Cash Flow [Member] Mandatory Prepayments of Indebtedness Equal to 50 Percent of Excess Cash Flow [Member] Mandatory Prepayments of Indebtedness Equal to 50% of Excess Cash Flow, Prior to Opening of Encore Boston Harbor Mandatory Prepayments of Indebtedness Equal to 50 Percent of Excess Cash Flow, Prior to Opening of Encore Boston Harbor [Member] Mandatory Prepayments of Indebtedness Equal to 50 Percent of Excess Cash Flow, Prior to Opening of Encore Boston Harbor [Member] Mandatory Prepayments of Indebtedness Equal to 50% of Excess Cash Flow, After Opening of Encore Boston Harbor Mandatory Prepayments of Indebtedness Equal to 50 Percent of Excess Cash Flow, After Opening of Encore Boston Harbor [Member] Mandatory Prepayments of Indebtedness Equal to 50 Percent of Excess Cash Flow, After Opening of Encore Boston Harbor [Member] No Mandatory Prepayments of Indebtedness in Respect of Excess Cash Flows No Mandatory Prepayments of Indebtedness in Respect of Excess Cash Flows [Member] No Mandatory Prepayments of Indebtedness in Respect of Excess Cash Flows [Member] Wynn Resorts Term Loan Due 2024 Wynn Resorts Term Loan [Member] Wynn Resorts Term Loan [Member] Mandatory prepayments of indebtedness, percent of excess cash flows Debt Instrument, Covenant Terms, Mandatory Prepayments of Indebtedness, Percent of Excess Cash Flows Debt Instrument, Covenant Terms, Mandatory Prepayments of Indebtedness, Percent of Excess Cash Flows Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Foreign Tax Credit Foreign Tax Credit [Member] Foreign Tax Credit [Member] Other Deferred Tax Asset Other Deferred Tax Asset [Member] Other Deferred Tax Asset [Member] Wynn Macau Wynn Resorts (Macau) [Member] Wynn Resorts (Macau) [Member] Recognized Tax Benefit [Axis] Recognized Tax Benefit [Axis] Recognized Tax Benefit [Axis] Recognized Tax Benefit [Domain] Recognized Tax Benefit [Domain] Recognized Tax Benefit [Domain] Tax Credit Carryforward Expiry In 2019 Tax Credit Carryforward Expiry In Two Thousand Nineteen [Member] Tax Credit Carryforward Expiry in Two Thousand Nineteen [Member] Tax Credit Carryforward Expiry In 2020 Tax Credit Carryforward Expiry In Two Thousand Twenty [Member] Tax Credit Carryforward Expiry in Two Thousand Twenty [Member] Tax Credit Carryforward Expiry In 2021 Tax Credit Carryforward Expiry In Two Thousand Twenty One [Member] Tax Credit Carryforward Expiry In Two Thousand Twenty One [Member] Tax Credit Carryforward Expiry In 2023 Tax Credit Carryforward Expiry In Two Thousand Twenty Three [Member] Tax Credit Carryforward Expiry In Two Thousand Twenty Three [Member] Tax Credit Carryforward Expiry In 2024 Tax Credit Carryforward, Expires 2024 [Member] Tax Credit Carryforward, Expires 2024 [Member] Tax Credit Carryforward, Expires at 2025 Tax Credit Carryforward, Expires at 2025 [member] [Member] Tax Credit Carryforward, Expires 2025 [Member] [Member] Tax Credit Carryforward, Expires at 2027 Tax Credit Carryforward, Expires at 2027 [Member] Tax Credit Carryforward, Expires at 2027 [Member] Income Taxes Income Taxes [Line Items] Income Taxes [Line Items] Complementary tax rate Complementary Tax Rate Complementary Tax Rate Amount of complementary tax exemption Amount Of Complementary Tax Exemption Amount of complementary tax exemption Amount of complementary tax exemption per share Amount Of Complementary Tax Exemption Per Share Amount of Complementary Tax Exemption Per Share Annual complementary tax to be paid Annual Complementary Tax Obligation Annual Complementary Tax Obligation Gaming tax Special Gaming Tax On Gross Revenue Special Gaming Tax On Gross Revenue Tax credit of "net" foreign source income Percent Tax Credit On Foreign Income Percent Tax Credit On Foreign Income Provisional net tax benefit Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Change in Tax Rate, Provisional Income Tax Expense (Benefit) Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Change in Tax Rate, Provisional Income Tax Expense (Benefit) Recognized foreign tax credit tax benefit net of valuation allowance Recognized Foreign Tax Credit Tax Benefit Net Of Valuation Allowance Recognized Foreign Tax Credit tax benefit net of valuation allowance Increase (decrease) in valuation allowance for deferred tax assets Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Tax benefits (loss) realized Tax Benefits From Exercise Of Nonqualified Stock Options Vested Restricted Stock And Accrued Dividends Tax benefits From Exercise of Nonqualified Stock Options Vested Restricted Stock and Accrued Dividends FTC carryforwards expired Deferred Tax Assets, Tax Credit Carryforwards, Expirations Deferred Tax Assets, Tax Credit Carryforwards, Expirations Disallowed interest carryforwards not subject to expiration Deferred Tax Asset, Disallowed Interest Expense Carryforwards, Not Subject to Expiration Deferred Tax Asset, Disallowed Interest Expense Carryforwards, Not Subject to Expiration Tax loss carryforward Operating Loss Carryforwards Valuation allowance U.S. and foreign uncertain tax positions that increase NOL and foreign tax credit carryforward deferred tax assets Us And Foreign Uncertain Tax Positions That Increase Nol And Foreign Tax Credit Carryforward Deferred Tax Assets US and foreign uncertain tax positions that increase NOL and foreign tax credit carryforward deferred tax assets Uncertain tax positions, noncurrent Liability for Uncertainty in Income Taxes, Noncurrent Unrecognized tax benefits that would impact the effective tax rate if recognized Unrecognized Tax Benefits that Would Impact Effective Tax Rate Recognized interest and penalties Income Tax Examination, Penalties and Interest Expense Unrecognized tax benefit increase resulting in tax settlements Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit Decrease in unrecognized tax benefits due to expiration of the statute of limitations Buildings and Improvements Buildings And Improvements [Member] Buildings And Improvements [Member] Land Improvements [Member] Land Improvements [Member] Leasehold Interest in Land Leasehold Interest In Land [Member] Leasehold interest In Land [Member] Furniture, Fixtures and Equipment Furniture Fixtures And Equipment [Member] Furniture Fixtures And Equipment [Member] Property, Plant and Equipment, Useful Life Property, Plant and Equipment, Useful Life Related Party Transactions [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Registration Rights Agreement Registration Rights Agreement [Member] Registration Rights Agreement [Member] Related Party [Axis] Related Party [Axis] Director [Member] Related Party [Domain] Chief Operating Officer Chief Operating Officer [Member] Former Board of Directors Chairman and Chief Executive Officer Former Board of Directors Chairman and Chief Executive Officer [Member] Former Board of Directors Chairman and Chief Executive Officer [Member] Related Party Transaction Related Party Transaction [Line Items] Maximum shares of common stock permitted to sell (in shares) Related Party Transaction, Maximum Shares of Common Stock Permitted to Sell Related Party Transaction, Maximum Shares of Common Stock Permitted to Sell Purchase of home for director Purchase And Renovation Costs For Home Purchased For Employee Total Costs To Date For Home And Renovations Made To The Home Purchased For An Employee. Number of percentage points used to determine discount on home purchase Number Of Percentage Points Used To Determine Discount On Home Purchase Number of percentage points to be multiplied by each anniversary of the term of the employment agreement that has occurred used to determine discount on home purchase. Consideration in event of employee agreement termination Consideration In Event Of Employee Agreement Termination Consideration In Event Of Employee Agreement Termination Amount due to officers and directors Due to Officers or Stockholders Defined Contribution Plan [Table] Defined Contribution Plan [Table] Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Domain] Retirement Plan Sponsor Location [Domain] Defined Contribution Plan Disclosure Defined Contribution Plan Disclosure [Line Items] Company's matching contribution percentage Defined Contribution Plan, Employer Matching Contribution, Percent of Match Employee contributions, percentage Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay Defined Contribution Plan, Cost Defined Contribution Plan, Cost Employee contribution percentage Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Annual vesting percentage Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Senior Revolving Credit Facility, Due 2022 Senior Revolving Credit Facility, Due 2022 [Member] Senior Revolving Credit Facility, Due 2022 [Member] 5 1/4% Senior Notes, due 2021 Five And One Over Four Percentage Wynn Macau Senior Notes Due October Fifteen Two Thousand Twenty One [Member] Five And One Over Four Percentage Wynn Macau Senior Notes Due October Fifteen Two Thousand Twenty One [Member] Senior Term Loan Facility Senior Term Loan Facility, Variable Rate, Various Maturities [Member] Senior Term Loan Facility, Variable Rate, Various Maturities [Member] Long-term Debt, Gross Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Current portion of long-term debt Non current portion of long-term debt Noncontrolling Interest [Table] Noncontrolling Interest [Table] Dividends [Axis] Dividends [Axis] Dividends [Domain] Dividends [Domain] Interim Dividend Interim Dividend [Member] Interim Dividend [Member] Special Dividend Special Dividend [Member] Special Dividend [Member] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Subsidiaries [Member] Subsidiaries [Member] Noncontrolling Interest Noncontrolling Interest [Line Items] Dividend paid (HK per share) Cash dividends declared (usd per share) Dividends Company's share of dividend Proceeds from Dividends Received Decrease from distributions to noncontrolling interest Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Related Party Transactions Related Party Transactions Disclosure [Text Block] Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Sale of Stock [Axis] Sale of Stock [Axis] Sale of Stock [Domain] Sale of Stock [Domain] Equity Offering Public Stock Offering [Member] Public Stock Offering [Member] Subsidiary, Sale of Stock [Line Items] Subsidiary, Sale of Stock [Line Items] Newly issued shares of common stock in registered public offering (shares) Sale of Stock, Number of Shares Issued in Transaction Price per share (usd per share) Sale of Stock, Price Per Share Proceeds Sale of Stock, Consideration Received on Transaction Underwriting discounts Sale of Stock, Underwriting Discounts Sale of Stock, Underwriting Discounts Offering expenses Sale of Stock, Offering Expenses Sale of Stock, Offering Expenses Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding as of January 1, 2018 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Forfeited or expired Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Outstanding as of December 31, 2018 Fully vested and expected to vest as of December 31, 2018 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Exercisable as of December 31, 2018 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Outstanding as of January 1, 2018 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Forfeited or expired Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Outstanding as of December 31, 2018 Fully vested and expected to vest as of December 31, 2018 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Exercisable as of December 31, 2018 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price Weighted Average Remaining Contractual Term Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract] Outstanding as of December 31, 2018 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Fully vested and expected to vest as of December 31, 2018 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Exercisable as of December 31, 2018 Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Aggregate Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Aggregate Intrinsic Value [Abstract] Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Aggregate Intrinsic Value [Abstract] Outstanding as of December 31, 2018 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Fully vested and expected to vest as of December 31, 2018 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Exercisable as of December 31, 2018 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Stock Option Exercises from the Plans [Abstract] Stock Option Exercises from the Plans [Abstract] Stock Option Exercises From the Plans [Abstract] Weighted average grant date fair value Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Intrinsic value of stock options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Cash received from the exercise of stock options Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Foreign currency translation Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Unrealized loss on investment securities Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Redemption Note Accumulated Gain (Loss), Financial Liability, Fair Value Option, Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Beginning of period Cumulative credit risk adjustment Amounts reclassified to net income Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Change in net unrealized gain (loss) Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax End of period Realized losses on investments Realized Investment Gains (Losses) (Loss) gain on extinguishment of debt Statement [Table] Statement [Table] Common Stock Common Stock [Member] Treasury Stock Treasury Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Retained Earnings Retained Earnings [Member] Noncontrolling Interests Noncontrolling Interest [Member] Statement Statement [Line Items] Beginning balance (in shares) Shares, Outstanding Beginning balance Currency translation adjustment Net unrealized gain (loss) on investments Redemption Note settlement Exercise of stock options (in shares) Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Issuance of common stock (in shares) Stock Issued During Period, Shares, New Issues Issuance of common stock Stock Issued During Period, Value, New Issues Issuance of restricted stock (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Issuance of restricted stock Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Cancellation of restricted stock (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Cancellation of restricted stock Stock Issued During Period, Value, Restricted Stock Award, Forfeitures Shares repurchased by the company and held as treasury shares (in shares) Shares repurchased by the company and held as treasury shares Sale of ownership interest in a subsidiary, net of income tax expense Sale of ownership interest in a subsidiary, net of income tax expense Sale of ownership interest in a subsidiary, net of income tax expense Distributions to noncontrolling interest Cash dividends declared Excess tax benefits from stock-based compensation Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Stock-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Ending balance (in shares) Ending balance