Accounting Policies [Abstract] 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] Redemption Price Promissory Note Debt Instrument, Face Amount Cash equivalents Cash Equivalents, at Carrying Value Interest rate swaps Interest Rate Derivatives, at Fair Value, Net Restricted cash Restricted Cash, Fair Value Disclosure Restricted Cash, Fair Value Disclosure Available-for-sale securities Available-for-sale Securities Redemption note Debt Instrument, Fair Value Disclosure Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies [Table] Commitments And Contingencies [Table] Commitments and Contingencies [Table] Jurisdiction [Axis] Jurisdiction [Axis] Statutory Accounting Practices, Jurisdiction [Domain] Statutory Accounting Practices, Jurisdiction [Domain] United States District Court, District of Nevada United States District Court, District of Nevada [Member] United States District Court, District of Nevada [Member] Eighth Judicial District Court of Clark County, Nevada Eighth Judicial District Court of Clark County, Nevada [Member] Eighth Judicial District Court of Clark County, Nevada [Member] Litigation Status [Axis] Litigation Status [Axis] Litigation Status [Domain] Litigation Status [Domain] Pending Litigation Pending Litigation [Member] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] Redemption Action and Counterclaim Redemption Action and Counterclaim [Member] Redemption Action and Counterclaim [Member] Derivative Claims Derivative Claims [Member] Derivative Claims [Member] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Forecast Scenario, Forecast [Member] Payments For Leases By Third Parties Payments For Leases By Third Parties [Axis] Payments for Leases by Third Parties [Axis] Payments For Leases By Third Parties [Domain] Payments For Leases By Third Parties [Domain] Payments for Leases by Third Parties [Domain] Cotai Development and Land Concession Contract Cotai Development And Land Concession Contract [Member] Cotai Development And Land Concession Contract [Member] Pre Construction Completion Payments Pre Construction Completion Payments [Member] Pre Construction Completion Payments [Member] Post Construction Completion Payments Post Construction Completion Payments [Member] Post Construction Completion Payments [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Contract Termination [Axis] Contract Termination [Axis] Contract Termination [Axis] Contract Termination [Domain] Contract Termination [Domain] Contract Termination [Domain] Directors Director [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Wynn Palace Wynn Palace [Member] Wynn Palace [Member] Aruze USA, Inc. Aruze United States Of America Inc [Member] Aruze United States Of America Inc [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] 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] Guarantee Obligations Guarantee Obligations [Member] Commitments and Contingencies Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Period to complete court-mandated actions after stay Loss Contingency, Period to Complete Court-Mandated Actions After Stay Loss Contingency, Period to Complete Court-Mandated Actions After Stay Number of new claims filed Loss Contingency, New Claims Filed, Number Quantity of land acquired (acres) Quantity Of Land Acquired Quantity of land acquired Land concession contract period (years) Land Concession Contract Period Land concession contract period Total land premium payable Total Land Premium Payable Total land premium payable Down payment of premium Down Payment Of Premium Down payment of premium Number of additional semi-annual payments Number Of Installments Number of Installments Individual semi-annual payment of premium (8 total) Semi Annual Payment Of Premium Semi Annual Payment Of Premium Rate of interest on premium Rate Of Interest On Premium Rate Of Interest On Premium Land premium payment obligation, current Land Premium Payment Obligation Current Land premium payment obligation current. Land premium payment obligation, noncurrent Land Premium Payment Obligation Non Current Land premium payment obligation non current. Annual lease payments Additional Land Lease Payments Additional land lease payments. Number of rooms in hotel Number Of Rooms In Hotel Number Of Rooms In Hotel Total project budget costs Estimated Cost Of Project Estimated Cost Of Project Guaranteed maximum price of contract Guaranteed Maximum Construction Price Guaranteed maximum construction price Bond as a percentage of guaranteed maximum price Performance Bond Rate Percentage of the guaranteed maximum price which the performance bond is for. Project costs incurred Project Costs Incurred Project costs incurred 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 Letter of credit outstanding Letters of Credit Outstanding, Amount Percentage of shares voted in favor of removal of Mr. Okada Percentage Of Voting In Favor Of Removal Percentage Of Voting In Favor Of Removal Of Director Number of voted shares Common Stock Number Of Votes Common Stock Number Of Votes Common stock redeemed, shares Stock Redeemed or Called During Period, Shares Redemption price promissory note, principal amount Redemption price promissory note, maturity date Debt Instrument, Maturity Date Debt instrument, interest rate Debt Instrument, Interest Rate, Stated Percentage Interest payment due Interest Expense, Long-term Debt Interim status update period Loss Contingency, Interim Status Update Period Loss Contingency, Interim Status Update Period Period of stay Loss Contingency, Period of Stay Loss Contingency, Period of Stay 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 Other Macau Other Macau [Member] Other Macau [Member] Las Vegas Operations Las Vegas Operations [Member] Las Vegas Operations Corporate and Other Corporate and Other [Member] Segment Reporting Information Segment Reporting Information [Line Items] Assets Assets Long-lived assets Long-Lived Assets Income Tax Disclosure [Abstract] Summary of Consolidated Income Loss Before Taxes for Domestic and Foreign Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Summary of Provision (Benefit) for Income Taxes Schedule Of Provision For Income Tax Table [Text Block] Schedule of provision for income tax [Table text block] Summary of Income Taxes (Federal Statutory Corporate Tax Rate) Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Summary of 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] 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] Current: Deferred Tax Assets, Net of Valuation Allowance, Current Classification [Abstract] Receivables, inventories, accrued liabilities and other Deferred Tax Asset Receivable Inventories Accrued Liabilities And Other Deferred tax asset receivable inventories accrued liabilities and other Accrued liabilities Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Less: valuation allowance Deferred Tax Assets, Valuation Allowance, Current Current deferred tax assets, net, total Deferred Tax Assets, Net of Valuation Allowance, Current Long-term: Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Classification [Abstract] Foreign tax credit carryforwards Deferred Tax Assets, Tax Credit Carryforwards, Foreign Intangibles and related other Deferred Tax Asset Intangibles And Related Other Deferred tax asset intangibles and related other Stock based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Pre-opening costs Deferred Tax Asset Pre Opening Costs Non Current Deferred Tax Asset Pre Opening Costs Non Current Other Deferred Tax Assets, Other Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Property and equipment Deferred Tax Assets, Property, Plant and Equipment Gross long-term deferred tax assets Deferred Tax Assets, Gross, Noncurrent Less: valuation allowance Deferred Tax Assets, Valuation Allowance, Noncurrent Deferred tax assets, net, total Deferred Tax Assets, Net of Valuation Allowance Prepaid insurance, maintenance and taxes Deferred Tax Liabilities, Prepaid Expenses Property and equipment Deferred Tax Liabilities, Property, Plant and Equipment Deferred Tax Assets, Net of Valuation Allowance, Current Deferred tax assets, net, non current Deferred Tax Assets, Net of Valuation Allowance, Noncurrent Net deferred tax liability Deferred Tax Assets, Net Segment Information Segment Reporting Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] 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 Award Plan Share Award Plan [Member] Share Award Plan [Member] Share-based Compensation Arrangement by Share-based Payment Award Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Schedule of Option Activity Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Nonvested Activity Schedule of Nonvested Share Activity [Table Text Block] Disclosure of Information about Option Exercises Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Schedule of Allocated Costs Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule Valuation Assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Equity [Abstract] Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected stock price 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 Summary of Operations by Segment Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Schedule of Capital Expenditures Schedule of Capital Expenditures [Table Text Block] Schedule of Capital Expenditures [Table Text Block] Summary of Assets and Capital Expenditures by Segment Reconciliation of Assets from Segment to Consolidated [Table Text Block] Summary of Long-lived Assets by Geographic Area Long-lived Assets by Geographic Areas [Table Text Block] Text Block [Abstract] Property Charges and Other Property Charges And Other Table [Text Block] Property charges and other table textblock. Investments, Debt and Equity Securities [Abstract] Investment Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Stock-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Related Party Transactions [Abstract] Related Party Transactions Related Party Transactions Disclosure [Text Block] Condensed Financial Information of Parent Company Only Disclosure [Abstract] Condensed Financial Statements [Table] Condensed Financial Statements [Table] Wynn Resorts, Ltd Parent Company [Member] Condensed Financial Statements, Captions Condensed Financial Statements, Captions [Line Items] 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) Stock-based compensation Share-based Compensation Amortization of discount on investment securities and other Accretion (Amortization) of Discounts and Premiums, Investments Dividends received from subsidiary Proceeds from Dividends Received Equity in income of subsidiaries Income (Loss) from Equity Method Investments Increase (decrease) in cash from changes in: Increase (Decrease) in Operating Capital [Abstract] Receivables Increase (Decrease) in Receivables Prepaid expenses Increase (Decrease) in Prepaid Expense Accounts payable, accrued expenses and other Increase (Decrease) in Accounts Payable and Accrued Liabilities Due from affiliates Increase (Decrease) in Due from Related Parties 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] Purchase of investment securities Payments to Acquire Available-for-sale Securities, Debt Proceeds from sales or maturities of investment securities Proceeds from Sale and Maturity of Marketable Securities Purchase of other assets Payments to Acquire Other Productive Assets Due to (from) subsidiaries Payments for (Proceeds from) Businesses and Interest in Affiliates 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] Cash distributions Payments of Dividends Exercise of stock options Proceeds from Stock Options Exercised Repurchase of common stock Payments for Repurchase of Common Stock Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Cash and cash equivalents: Cash and Cash Equivalents, Period Increase (Decrease) [Abstract] (Decrease) increase in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Balance, beginning of year Cash and Cash Equivalents, at Carrying Value Balance, end of year ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Investment securities Short-term Investments Receivables Receivables, Net, Current Prepaid expenses Prepaid Expense, Current Total current assets Assets, Current Property and equipment, net Property, Plant and Equipment, Net Investment securities Marketable Securities, Noncurrent Other assets Other Assets, Noncurrent Due from subsidiaries Due from Related Parties, Noncurrent Investment in subsidiaries Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Total assets LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued compensation and benefits Employee-related Liabilities, Current Interest payable Interest Payable, Current Other accrued liabilities Other Accrued Liabilities, Current Deferred income taxes, net Deferred Tax Liabilities, Net, Current Total current liabilities Liabilities, Current Long-term debt Long-term Debt, Excluding Current Maturities Other long-term liabilities Other Liabilities, Noncurrent Uncertain tax position liability Liability for Uncertain Tax Positions, Noncurrent Deferred income taxes, net Deferred Tax Liabilities, Net, Noncurrent Total liabilities Liabilities Commitments and contingencies (Note 2) 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; 114,170,493 and 113,730,442 shares issued; and, 101,192,408 and 100,866,712 shares outstanding Common Stock, Value, Issued Treasury stock, at cost; 12,978,085 and 12,863,730 shares Treasury Stock, Value Additional paid-in capital Additional Paid in Capital Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Retained earnings Retained Earnings (Accumulated Deficit) Total Wynn Resorts, Limited stockholders’ deficit Stockholders' Equity Attributable to Parent Noncontrolling interest Stockholders' Equity Attributable to Noncontrolling Interest Total equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and stockholders' equity Liabilities and Equity 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, Charged to Cost and Expense Write-offs, Net of Recoveries Valuation Allowances and Reserves, Adjustments Ending balance Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding at January 1, 2014 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 at December 31, 2014 Fully vested and expected to vest at December 31, 2014 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Exercisable at December 31, 2014 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 at January 1, 2014 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 at December 31, 2014 Fully vested and expected to vest at December 31, 2014 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Exercisable at December 31, 2014 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 at December 31, 2014 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Fully vested and expected to vest at December 31, 2014 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Exercisable at December 31, 2014 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 at December 31, 2014 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Fully vested and expected to vest at December 31, 2014 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Exercisable at December 31, 2014 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, Vested, Weighted Average Grant Date Fair Value Intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Cash received Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options Tax benefits realized Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options Shares authorized for issuance Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Unrecognized compensation cost, weighted average period Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Unrecognized compensation, stock options Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options 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 Stock based compensation costs Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost Stock-based compensation capitalized into construction Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount Accelerated compensation cost related to outgoing executive Share-based Compensation Arrangement by Share-based Payment Award Accelerated Compensation Cost Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Deferred Tax Liabilities Noncurrent Deferred Tax Liabilities Noncurrent [Member] Deferred Tax Liabilities Noncurrent [Member] Summary of Significant Accounting Policies Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Percentage of ownership in joint ventures Equity Method Investment, Ownership Percentage Debt instrument, principal amount Debt instrument, foreign interest rate Bank deposits and cash on hand Cash Restricted cash Restricted Cash and Cash Equivalents 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. Adjustment effect in operating income Change In Accounting Estimate Financial Effect Operating Income Change in accounting estimate, financial effect on Operating Income. Adjustment effect in net income Change In Accounting Estimate Financial Effect Net Income Loss Change in Accounting Estimate, Financial Effect, Net Income (Loss) Adjustment effect in diluted earning per share Change In Accounting Estimate Financial Effect Net Income Loss Per Share Diluted Change in Accounting Estimate, Financial Effect, Net Income Loss Per Share, Diluted Capitalized interest Interest Costs Capitalized Interest expense, amortized Amortization of Financing Costs and Discounts Gaming tax expenses Gaming Tax Expenses Gaming tax expense. Total advertising costs Advertising Expense Percentage of cash equivalents which are deposits held in foreign currencies Percentage Of Cash And Cash Equivalent Invested Percentage of Cash and Cash Equivalent Invested Unrecognized tax benefits Unrecognized Tax Benefits Cash dividends paid to parent company Cash Dividends Paid to Parent Company by Consolidated Subsidiaries Receivables [Abstract] Summary of Receivables, Net Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Class of Treasury Stock [Table] Class of Treasury Stock [Table] 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] Common stock, shares authorized Common Stock, Shares Authorized Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, shares outstanding Common Stock, Shares, Outstanding Common stock, voting rights Common Stock, Voting Rights Repurchase of equity amount authorized Stock Repurchase Program, Authorized Amount Net cost for common stock purchased Treasury Stock, Value, Acquired, Cost Method Stock repurchases, shares Treasury Stock, Shares, Acquired Dividend paid Common Stock, Dividends, Per Share, Cash Paid Additional dividend paid Common Stock, Special Dividends, Per Share, Cash Paid Common Stock, Special Dividends, Per Share, Cash Paid Preferred stock, shares authorized Preferred Stock, Shares Authorized Preferred stock, par value Preferred Stock, Par or Stated Value Per Share Preferred stock, shares issued Preferred Stock, Shares Issued Common shares redeemed and canceled Compensation and Retirement Disclosure [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] Wynn Macau Wynn Resorts (Macau) [Member] Wynn Resorts (Macau) [Member] Defined Benefit Plan Disclosure Defined Benefit Plan Disclosure [Line Items] Multi-employer plan, period contributions Multiemployer Plan, Period Contributions Company's matching contribution percentage Companys Matching Contribution Percentage Company's matching contribution percentage. Changes by Component, Net of Tax and Noncontrolling Interest, in Accumulated Other Comprehensive Income Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] 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 Additions based on tax positions of the current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Additions based on tax positions of prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Reductions for tax positions of prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Settlements Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Lapses in statutes of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Balance-end of year Noncontrolling Interests [Abstract] Noncontrolling Interests [Abstract] Noncontrolling Interest [Table] Noncontrolling Interest [Table] Wynn Macau Limited Wynn Macau, Limited [Member] Wynn Macau, Limited [Member] Noncontrolling Interest Noncontrolling Interest [Line Items] Subsidiary common stock, shares issued Sale of Stock, Number of Shares Issued in Transaction Percentage of issuance of common stock Percentage Of Issuance Of Common Stock Percentage of issuance of common stock Net income attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Total dividend Dividends, Common Stock Cash Dividends Paid to Parent Company Reduction in noncontrolling interest Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, 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 Fair value of shares vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Tax benefits 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 Nonvested Awards, Unamortized Compensation Cost Not yet Recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 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 Subsequent Events [Abstract] Subsequent Event Subsequent Events [Text Block] Subsequent Event [Table] Subsequent Event [Table] First Mortgage Notes Mortgages [Member] Senior Notes Senior Notes [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 Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 7 3/4% Wynn Las Vegas First Mortgage Notes, Due August 15, 2020 Seven And Three Over Four Wynn Las Vegas First Mortgage Notes Due Augustfifteen Two Thousand Twenty [Member] Seven And Three Over Four Wynn Las Vegas First Mortgage Notes Due Augustfifteen Two Thousand Twenty [Member] 7 7/8% Wynn Las Vegas First Mortgage Notes, Due May 1, 2020 Seven And Seven Over Eight Percentage Wynn Las Vegas First Mortgage Notes Due Mayone Two Thousand Twenty [Member] Seven And Seven Over Eight Percentage Wynn Las Vegas First Mortgage Notes Due Mayone Two Thousand Twenty [Member] 5.50% Senior Notes Due 2025 Five Point Five Percent Senior Notes Due 2025 [Member] Five Point Five Percent Senior Notes Due 2025 [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Subsequent Event Subsequent Event [Line Items] Dividend payable, date declared Dividends Payable, Date Declared Declared cash dividend Dividends Payable, Amount Per Share Dividend payable, date to be paid Dividends Payable, Date to be Paid Dividend payable, record date Dividends Payable, Date of Record Repurchase price per $1,000 principal amount Tender Offer Consideration In Cash Tender Offer Tender Offer Consideration In Cash Tender Offer Loss from extinguishment of debt Gains (Losses) on Extinguishment of Debt Valid tenders received at time of cash tender offer expiration Notes Under Tender Offer Face Amount Redeemed Notes Under Tender Offer, Face Amount Redeemed Principal amount for cash tender offer Principal Amount For Cash Tender Price Principal Amount For Cash Tender Price TenderOfferConsiderationInCash TenderOfferConsiderationInCash TenderOfferConsiderationInCash 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 Accumulated Other Comprehensive Income Comprehensive Income (Loss) Note [Text Block] Payments to Acquire Property, Plant, and Equipment Payments to Acquire Property, Plant, and Equipment Derivative Instruments and Hedging Activities Disclosure [Abstract] Interest Rate Swaps Derivative Instruments and Hedging Activities Disclosure [Text Block] Income Taxes Income Tax Disclosure [Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Intangible Assets, net Intangible Assets Disclosure [Text Block] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Lease Agreement Lease Agreement [Axis] Lease Agreement [Axis] Lease Agreement [Domain] Lease Agreement [Domain] Lease Agreement [Domain] SW Lease S W Lease [Member] S W Lease [Member] Property Subject to or Available for Operating Lease [Axis] Property Subject to or Available for Operating Lease [Axis] Property Subject to or Available for Operating Lease [Domain] Property Subject to or Available for Operating Lease [Domain] After Amendment After Amendment [Member] After Amendment [Member] Related Party Transaction Related Party Transaction [Line Items] Amount due to officers and directors Due to Officers or Stockholders Notice required for lease termination at Villa Suite, days Notice Required For Lease Termination Notice required for lease termination at Villa Suite, days Rental value Operating Leases, Income Statement, Lease Revenue 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 Area of land (in acres) Area of Land Term of notice required to exercise option Notice Period To Exercise Aircraft Purchase Option Number Of Days Written Notice Required To Exercise Aircraft Purchase Option. Agreement expiration Employment Agreement Expiration Date Employment Agreement Expiration Date Surname Rights Agreement expiration date Surname Rights Agreement Expiration Date Surname Rights Agreement Expiration Date Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Chief Operating Officer Chief Operating Officer [Member] WRL 2002 Plan WRL 2002 Plan [Member] WRL 2002 Plan [Member] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Restricted Stock Restricted Stock [Member] Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 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] Show Production Rights Show Production Rights [Member] Show Production Rights [Member] Massachusetts Gaming License Massachusetts Gaming License [Member] Massachusetts Gaming License [Member] Other All Other [Member] All Other [Member] Intangible Assets Intangible Assets [Line Items] Intangible Assets [Line Items] Finite-lived intangible assets, gross Finite-Lived Intangible Assets, Gross Finite-Lived Intangible Assets, Write-Off Finite-Lived Intangible Assets, Write-Off Finite-Lived Intangible Assets, Write-Off 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 Intangible Assets, Net (Excluding Goodwill) Statement of Cash Flows [Abstract] Stock-based compensation Allocated Share-based Compensation Expense Excess tax benefits from stock-based compensation Excess Tax Benefit from Share-based Compensation, Operating Activities Amortization and write-offs of deferred financing costs and other Amortization Of Deferred Financing Costs 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. 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. Provision for doubtful accounts Provision for Doubtful Accounts Property charges and other Noncash Project Abandonment Costs Equity in income of unconsolidated affiliates, net of distributions Income (Loss) from Equity Method Investments, Net of Dividends or Distributions Decrease (increase) in swap fair value Unrealized Gain (Loss) on Derivatives Receivables, net 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 Cash flows used in investing activities: Capital expenditures, net of construction payables and retention Purchase of corporate debt securities Proceeds from sale or maturity of corporate debt securities Restricted cash Increase (Decrease) in Restricted Cash Deposits and purchase of intangibles and other assets Payments For Deposits And Other Assets Net cash inflow or (outflow) from other deposits and/or other assets not otherwise defined in the taxonomy. Proceeds from sale of assets Proceeds from Sale of Productive Assets Proceeds from exercise of stock options Excess tax benefits from stock-based compensation Excess Tax Benefit from Share-based Compensation, Financing Activities Dividends paid Proceeds from issuance of long-term debt Proceeds from Issuance of Long-term Debt Principal payments on long-term debt Repayments of Long-term Debt Repurchase of first mortgage notes Repurchase of First Mortgage Notes Cash outflows from repurchase of first mortgage notes 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 Interest rate swap settlement Payments for Derivative Instrument, Financing Activities Payments on long-term land concession obligation Proceeds from (Payments for) Other Financing Activities Payment of financing costs Payments of Debt Issuance Costs Effect of exchange rate on cash Effect of Exchange Rate on Cash and Cash Equivalents Supplemental cash flow disclosures Supplemental Cash Flow Information [Abstract] Cash transactions: Cash Transactions [Abstract] Cash Transactions [Abstract] Cash paid for interest, net of amounts capitalized Interest Paid, Net Cash paid for income taxes Income Taxes Paid, Net Non-cash transactions: Noncash Investing and Financing Items [Abstract] Increase in debt related to the redemption of stock Redemption Price Of Shares Cancelled Redemption Price of Shares cancelled Change in property and equipment included in accounts and construction payables Change In Property And Equipment Included In Accounts And Construction Payables Change in Property and Equipment Included in Accounts and Construction Payables Increase in liability for dividends declared on nonvested stock Cash Distribution On Non Vested Stock Cash distribution declared on non-vested stock. Organization, Consolidation and Presentation of Financial Statements [Abstract] Statement [Table] Statement [Table] Statement Statement [Line Items] Common stock of subsidiary sold Percentage of subsidiary's common stock sold Percentage Of Subsidiarys Common Stock Sold Percentage of subsidiary's common stock sold. Statement of Financial Position [Abstract] Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Common stock, shares issued Common Stock, Shares, Issued Treasury stock, shares Treasury Stock, Shares Domestic 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 Fair value Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] Due in one year or less Available For Sale Securities Debt Maturities Within One Year Of Balance Sheet Date Fair Value Amount of available-for-sale debt securities at fair value maturing within one year of the balance sheet date. Due after one year through two years Available For Sale Securities Debt Maturities After One Through Two Years Fair Value Available for Sale Securities, Debt Maturities, after One Through Two Years of Balance Sheet Date, Fair Value Fair value Available-for-sale Securities, Debt Securities Schedule of Indefinite-Lived Intangible Assets Schedule of Indefinite-Lived Intangible Assets [Table Text Block] Schedule of Finite-Lived Intangible Assets Schedule of Finite-Lived Intangible Assets [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] Wynn Macau Wynn Macau [Member] Wynn Macau [Member] Wynn Las Vegas Wynn Las Vegas [Member] Wynn Las Vegas [Member] Casino Casino [Member] Casino [Member] Retail Retail [Member] Retail [Member] Salon and Spa Salon And Spa [Member] Salon And Spa [Member] Pool Pool [Member] Pool [Member] Food and Beverage Food And Beverage [Member] Food And Beverage [Member] Inperson Committee Meeting Inperson Committee Meeting [Member] In-person Committee Meeting [Member] 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] Percentage of ownership Noncontrolling Interest, Ownership Percentage by Parent Number of hotel Number Of Hotel Towers Number of Hotel Towers Area of property Functional Area Square Footage Functional Area Square Footage. 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. Receivables, net Inventories Inventory, Net Prepaid expenses and other Prepaid Expense and Other Assets, Current Intangible assets, net Deferred financing costs, net Deferred Finance Costs, Noncurrent, Net Deposits and other assets Investment in unconsolidated affiliates Accounts and construction payables Current portion of long-term debt Long-term Debt, Current Maturities Current portion of land concession obligation 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 interest Land concession obligation Commitments and contingencies (Note 17) Common stock, par value $0.01; 400,000,000 shares authorized; 114,426,960 and 114,170,493 shares issued; 101,439,297 and 101,192,408 shares outstanding Treasury stock, at cost; 12,987,663 and 12,978,085 shares Statement of Stockholders' Equity [Abstract] Equity Components Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Total Wynn Resorts, Ltd Stockholders' Equity (Deficit) Common Stock Common Stock [Member] Treasury Stock Treasury Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income (Loss) [Member] Retained Earnings Retained Earnings [Member] Noncontrolling Interest Noncontrolling Interest [Member] Beginning balance (in shares) Beginning balance Stock redemption (in shares) Stock redemption Stock Redeemed or Called During Period, Value Currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Net unrealized gain (loss) on investments Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Exercised Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised 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 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 Cash dividends declared Dividends, Cash 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) Shares, Outstanding Ending balance Other Income and Expenses [Abstract] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property and Equipment, Net Property, Plant and Equipment [Line Items] Square footage of renovated area Area Of Real Estate Property, Renovated Area Of Real Estate Property, Renovated Debt Disclosure [Abstract] Summary of 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] Property, Plant and Equipment, Type Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Buildings and Improvements Buildings And Improvements [Member] Buildings And Improvements [Member] Land Improvements Land Improvements [Member] Leasehold Interest in Land Leasehold Interest In Land [Member] Leasehold interest In Land [Member] Airplanes Airplanes [Member] Airplanes [Member] Furniture, Fixtures and Equipment Furniture Fixtures And Equipment [Member] Furniture Fixtures And Equipment [Member] Estimated useful lives of the assets Property, Plant and Equipment, Useful Life 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 Rooms Rooms [Member] Rooms [Member] Food and Beverage 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] 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 Property, Plant and Equipment [Abstract] Schedule of Property and Equipment, Net Schedule Of Property Plant And Equipment [Table Text Block] Tabular disclosure of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. Future Minimum Rental Receivable Under Operating Lease Operating Leases of Lessor Disclosure [Text Block] Future Minimum Rental Payable Under Non-Cancelable Operating Lease Operating Leases of Lessee Disclosure [Table Text Block] Principles of Consolidation Consolidation, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] 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 Capitalized Interest Policy [Text Block] Capitalized Interest 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] Deferred Financing Costs Deferred Financing Costs Policy [Text Block] Deferred Financing Costs Policy [Text Block] Derivative Financial Instruments Derivatives, Policy [Policy Text Block] Redemption Price Promissory Note Redemption Price Promissory Note Policy [Text Block] Redemption Price Promissory Note [Policy Text Block] Revenue Recognition and Promotional Allowances Revenue Recognition, Policy [Policy Text Block] Customer Loyalty Program Customer Loyalty Program Policy [Text Block] Customer Loyalty Program Policy [Text Block] Slot Machine Jackpots Slot Machine Jackpots Policy [Text Block] Slot Machine Jackpots Policy [Text Block] Gaming Taxes Gaming Taxes Policy [Text Block] Gaming Taxes Policy Advertising Costs Advertising Costs, Policy [Policy Text Block] Pre-Opening Costs Preopening Costs Policy [Text Block] Pre Opening Costs 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 [Text Block] Comprehensive Income 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 Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Noncontrolling Interest [Abstract] Noncontrolling Interest Noncontrolling Interest Disclosure [Text Block] Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Property Charges and Other Property Charges And Other [Text Block] Entire disclosure for 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. Schedule of Investment Securities Available-for-sale Securities [Table Text Block] Investments by Contractual Maturity Investments Classified by Contractual Maturity Date [Table Text Block] 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] 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, 2015 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Future amortization expense, 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Two Future amortization expense, 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Three Future amortization expense, 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Four Future amortization expense, 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Five Future amortization expense, 2020 Finite Lived Intangible Assets Amortization Expense Year Six Finite-Lived Intangible Assets, Amortization Expense, Year Six Future amortization expense, 2021 Finite Lived Intangible Assets Amortization Expense Year Seven Finite Lived Intangible Assets Amortization Expense Year Seven Future amortization expense, 2022 Finite Lived Intangible Assets Amortization Expense Year Eight Finite Lived Intangible Assets Amortization Expense Year Eight 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]. Summary of Estimated Cost of Promotional Allowances Summary Of Estimated Cost Of Promotional Allowance [Table Text Block] Summary of estimated cost of promotional allowance. 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] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Debt Instrument Period [Axis] Debt Instrument Period [Axis] Debt Instrument Period [Axis] Debt Instrument Period [Domain] Debt Instrument Period [Domain] Debt Instrument Period [Domain] Due July 31, 2017 Period One [Member] Period 1 [Member] Due July 31, 2018 Period Two [Member] Period 2 [Member] Wynn America Wynn America [Member] Wynn America [Member] World Travel, LLC World Travel, LLC [Member] World Travel, LLC Line of Credit Line of Credit [Member] Term Loans Notes Payable to Banks [Member] Secured Debt Secured Debt [Member] Promissory Note Notes Payable, Other Payables [Member] Amended Wynn Macau Credit Facilities Amended Wynn Macau Credit Facility [Member] Amended Wynn Macau Credit Facility [Member] Wynn America Credit Facilities Wynn America Credit Facilities [Member] Wynn America Credit Facilities [Member] Senior Secured Credit Facility Term Loans Senior Secured Credit Facility Term Loans [Member] Senior Secured Credit Facility Term Loans [Member] Bank Guarantee Reimbursement Agreement Bank Guarantee Reimbursement Agreement [Member] Bank Guarantee Reimbursement Agreement 5 1/4% Wynn Macau Senior Notes, Due October 15, 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] 7 7/8% Wynn Las Vegas First Mortgage Notes, Due November 1, 2017 Seven and Seven Over Eight Percentage Wynn Las Vegas First Mortgage Notes Due November 1, 2017 [Member] 7 7/8% Wynn Las Vegas First Mortgage Notes Due November 1, 2017 [Member] 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] The 2021 Notes Original 2021 Notes and Additional 2021 Notes [Member] Original 2021 Notes and Additional 2021 Notes [Member] Original 2021 Notes Five And Two Point Five Percentage Wynn Macau Senior Notes Due October Sixteen Twenty Twenty One Member [Member] Five And Two Point Five Percentage Wynn Macau Senior Notes Due October Sixteen Twenty Twenty One Member [Member] Additional 2021 Notes Five And Two Point Five Percentage Wynn Macau Senior Notes Due October Fifteen Twenty Twenty One [Member] Five And Two Point Five Percentage Wynn Macau Senior Notes Due October Fifteen Twenty Twenty One [Member] 4.25% Senior Notes Due 2023 and 5.50% Senior Notes Due 2025 Four Point Twenty-Five Percent Senior Notes Due 2023 and 5.50 Percent Senior Notes Due 2025 [Member] Four Point Twenty-Five Percent Senior Notes Due 2023 and 5.50 Percent Senior Notes Due 2025 [Member] $42 Million Note Payable, Due April 1, 2017 Fourty Two Million Dollar Note Payable Due Aprilone Two Thousand Seventeen [Member] Fourty Two Million Dollar Note Payable Due Aprilone Two Thousand Seventeen [Member] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Performance Guarantee Performance Guarantee [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR) [Member] Hong Kong Interbank Offered Rate (HIBOR) Hong Kong Inter Bank Offered Rate [Member] Hong Kong Inter Bank Offered Rate [Member] Base Rate Base Rate [Member] Eurodollar Rate Eurodollar [Member] Debt Instrument Debt Instrument [Line Items] Line of credit Long-term Line of Credit Credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Debt instrument payment terms Debt Instrument, Payment Terms Maturity period Debt Instrument Maturity Month And Year Debt Instrument, Maturity, Month and Year Interest rate Debt Instrument, Basis Spread on Variable Rate 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 Deferred financing cost and third party fees 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 Consolidated leverage ratio, minimum Consolidated Leverage Ratio Minimum Numerator Consolidated leverage ratio minimum numerator Leverage ratio, maximum Leverage Ratio Maximum Numerator Leverage ratio maximum numerator Interest coverage ratio, minimum Interest Coverage Ratio Minimum Numerator Interest coverage ratio minimum numerator Bank guarantee carrying amount Guarantor Obligations, Current Carrying Value Guarantee, period at fixed amount Guarantee, Period at Fixed Amount Guarantee, Period at Fixed Amount Maximum guarantee by Macau government Annual Fee Paid To Bank Annual Fee Paid To Bank Increase of credit facility Line of Credit Facility, Increase (Decrease), Net Debt maturity date Availability of credit facility Line of Credit Facility, Remaining Borrowing Capacity Debt instrument, aggregate principal amount Net proceed from issuance of debt note Debt redemption date Debt Instrument Cut Off Date For Specified Redemption Price Debt Instrument Cut Off Date For Specified Redemption Price Debt instrument, redemption terms Debt Instrument, Redemption, Description Debt redemption price as percentage of principal Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Debt percentage of redemption premium on principal amount Debt Instrument Percentage Redemption Premium On Principal Amount Debt Instrument Percentage Redemption Premium On Principal Amount Repurchase amount, carrying value Debt Instrument, Repurchase Amount, Carrying Value Carrying value amount of debt instrument that was repurchased Aggregate amount for certain event Aggregate Amount Of Non Payment Of Judgements To Trigger Default Aggregate amount of non-payment of judgements against subsidiary companies that would trigger default event. Payment default classification period for interest payment Payment Default Classification Period For Interest Payment Payment Default Classification Period For Interest Payment Debt premium decrease Debt Instrument Increase Decrease In Premium Debt Instrument, Increase Decrease in Premium Redemption fees paid Payments of Debt Extinguishment Costs Long-term debt previous due date Debt Instrument Previous Maturity Date Debt Instrument Previous Maturity Date Debt instrument issuance date Debt Instrument, Issuance Date Capitalized financing costs Deferred Finance Costs, Net Principal payments on long-term debt Balloon payment due at maturity Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid Number of basis points of interest paid in addition to LIBOR Number Of Basis Points Of Interest Paid In Addition To Libor Number of basis points of interest paid in addition to LIBOR 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 Future accretion of debt discounts Debt Instrument, Unamortized Discount Debt Instrument First Installment Payment Date Debt Instrument First Installment Payment Date Date when the first installment of debt instrument is scheduled to be repaid, in CCYY-MM-DD format. Future amortization of debt premiums Debt Instrument, Unamortized Premium SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Federal, Current Current Federal 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) Foreign, Deferred Deferred Foreign 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) Preferred stock, par shares outstanding Long-Term Debt Long-term Debt [Text Block] Receivables, net Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Promotional Allowance [Table] Promotional Allowance [Table] Promotional Allowance [Table] Promotional Allowances Promotional Allowances [Axis] Promotional Allowances [Axis] Promotional Allowances [Domain] Promotional Allowances [Domain] Promotional Allowances [Domain] Rooms Entertainment, Retail and Other Promotional Allowances Promotional Allowance [Line Items] Promotional Allowance [Line Items] Estimated costs of providing promotional allowances (primarily included in casino expenses) Estimated Costs Of Promotional Allowances Primarily Included In Casino Expenses Estimated Costs Of Promotional Allowances Primarily Included In Casino Expenses Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Major Types of Debt and Equity Securities 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] Commercial Paper Commercial Paper, Not Included with Cash and Cash Equivalents [Member] Schedule of Available-for-sale Securities Schedule of Available-for-sale Securities [Line Items] 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 Net revenues Revenue, Net 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 costs and expenses Other Operating Costs And Expenses [Abstract] Other Operating Costs and Expenses [Abstract] Pre-opening costs 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 and expenses associated with business termination activities and other expenses. Corporate expenses and other Corporate Expenses And Other Corporate Expenses And Other Equity in income from unconsolidated affiliates Income (Loss) From Equity Method Investments, Offset Income (Loss) From Equity Method Investments, Offset Total other operating costs and expenses Other Cost and Expense, Operating Operating income Operating Income (Loss) Non-operating costs and expenses Nonoperating Income (Expense) [Abstract] Interest income Investment Income, Interest Interest expense, net of amounts capitalized Interest Expense (Decrease) increase in swap fair value Gain (Loss) on Derivative Instruments, Net, Pretax Other Other Nonoperating Income (Expense) Other income (expense), net Nonoperating Income (Expense) Equity in income from unconsolidated affiliates Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Benefit (provision) for income taxes Benefit Plans Schedule of Defined Benefit Plans Disclosures [Table Text Block] Earnings Per Share [Abstract] Net Income attributable to Wynn Resorts, Ltd. Net Income (Loss) Attributable to Parent Weighted average common shares outstanding (used in calculation of basic earnings per share) Weighted Average Number of Shares Outstanding, Basic Weighted average common and common equivalent shares outstanding (used in calculation of diluted earnings per share) Weighted Average Number of Shares Outstanding, Diluted Potential dilution from the assumed exercise of stock options and nonvested stock Weighted Average Number Diluted Shares Outstanding Adjustment Basic (in usd per share) Earnings Per Share, Basic Diluted (in usd per share) Earnings Per Share, Diluted Anti-dilutive stock options excluded from the calculation of diluted earnings per share Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 2014 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2015 Operating Leases, Future Minimum Payments, Due in Two Years 2016 Operating Leases, Future Minimum Payments, Due in Three Years 2017 Operating Leases, Future Minimum Payments, Due in Four Years 2018 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total Operating Leases, Future Minimum Payments Due Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Legal Entity of Counterparty, Type Legal Entity of Counterparty, Type [Axis] Legal Entity Type of Counterparty [Domain] Legal Entity Type of Counterparty [Domain] Hotel Hotel [Member] Retail Leases and Other Retail Leases And Other [Member] Retail Leases And Other [Member] Accounts, Notes, Loans and Financing Receivable 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 Quarterly Financial Information Disclosure [Abstract] Operating income Net income attributable to Wynn Resorts, Limited Basic income per share Diluted income per share Statement of Comprehensive Income [Abstract] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Foreign Currency Translation Accumulated Translation Adjustment [Member] Unrealized (Loss) Gain on Securities Accumulated Net Unrealized Investment Gain (Loss) [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) [Line Items] Beginning balance Current period other comprehensive (loss) gain Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Amounts reclassified from accumulated other comprehensive income Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Net current-period other comprehensive (loss) gain Other Comprehensive Income (Loss), Net of Tax Ending balance Defined Contribution Plan [Table] Defined Contribution Plan [Table] Defined Contribution Plan Type [Axis] Defined Contribution Plan Type [Axis] Defined Contribution Plan Type [Domain] Defined Contribution Plan Type [Domain] 401(k) Plan United States Postretirement Benefit Plan of US Entity [Member] 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 Annual contributions per employee amount Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount Retirement savings plan contribution expense Defined Contribution Plan, Cost Recognized Employee contribution percentage Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Company's matching contribution percentage Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Schedule of Quarterly Financial Data Schedule of Quarterly Financial Information [Table Text Block] Senior Revolving Credit Facility due July 31, 2017 Senior Revolving Credit Facility due July 31, 2017 [Member] Senior Revolving Credit Facility due July 31, 2017 [Member] Long-term debt total Long-term Debt Current portion of long-term debt Non current portion of long-term debt Quarterly Financial Information Quarterly Financial Information [Text Block] Property and Equipment, net Property, Plant and Equipment Disclosure [Text Block] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Net loss on assets abandoned/retired for remodel or sold Net Loss On Assets Abandoned Retired For Remodel Or Sales Net Loss On Assets Abandoned Retired For Remodel Or Sales. Donation to University of Macau Foundation Donation Payments Made Or Accrued During Period Donation Payments Made Or Accrued During Period Loss on contract termination Gain (Loss) on Contract Termination Loss on show cancellation Loss On Show Cancellation Loss On Show Cancellation Property charges and other 2014 Operating Leases, Future Minimum Payments Receivable, Current 2015 Operating Leases, Future Minimum Payments Receivable, in Two Years 2016 Operating Leases, Future Minimum Payments Receivable, in Three Years 2017 Operating Leases, Future Minimum Payments Receivable, in Four Years 2018 Operating Leases, Future Minimum Payments Receivable, in Five Years Thereafter Operating Leases, Future Minimum Payments Receivable, Thereafter Total Operating Leases, Future Minimum Payments Receivable Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Income Tax Contingency [Axis] Income Tax Contingency [Axis] Income Tax Contingency [Axis] Income Tax Contingency [Domain] Income Tax Contingency [Domain] Income Tax Contingency [Domain] Foreign Tax Credit Carryforwards Foreign Tax Credit Carryforwards [Member] Foreign Tax Credit Carryforwards [Member] General Business Tax Carryforwards Business Tax [Member] Business Tax Credit Carryforwards 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] 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 2018 Tax Credit Carryforward Expiry In Two Thousand Eighteen [Member] Tax Credit Carryforward Expiry in Two Thousand Eighteen [Member] 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] 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 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 in valuation allowance for deferred tax assets Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Tax loss carryforward Operating Loss Carryforwards U.S. capital loss carryforward incurred Deferred Tax Assets, Capital Loss Carryforwards Foreign tax credit carryforward time period, years Foreign Tax Credit Carryforward Time Period Foreign tax credit carryforward time period, years Valuation allowance Deferred Tax Assets, Valuation Allowance Accumulated earnings to be repatriated Undistributed Earnings Of Foreign Subsidiaries Subject To Repatriation Undistributed Earnings Of Foreign Subsidiaries Subject To Repatriation Undistributed earnings of foreign subsidiaries Undistributed Earnings of Foreign Subsidiaries Temporary differences resulting from earnings of certain non-U.S. subsidiaries Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries Repatriation of foreign earnings Foreign Earnings Repatriated 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 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 Cash tax payment Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority Decrease in unrecognized tax benefits due to expiration of the statute of limitations Federal statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Foreign tax rate differential Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Non-taxable foreign income Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent Foreign tax credits, net of valuation allowance Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Percent Repatriation of foreign earnings Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent Other, net Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Valuation allowance, other Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Effective tax rate Effective Income Tax Rate Reconciliation, Percent Condensed Financial Statements (Parent Company Only) Condensed Financial Information of Parent Company Only Disclosure [Text Block] 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. 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. Less: promotional allowances Promotional Allowances Net revenues Operating costs and 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 Total operating costs and expenses Costs and Expenses Other income (expense): Interest expense, net of amounts capitalized Loss on extinguishment of debt Income before income taxes Net income Less: net income attributable to noncontrolling interest Net income attributable to Wynn Resorts, Limited Basic and diluted income per common share: Earnings Per Share, Basic and Diluted [Abstract] Net income attributable to Wynn Resorts, Limited: Weighted average common shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Diluted (in shares) Interest Rate Swaps [Table] Interest Rate Swaps [Table] Interest Rate Swaps [Table] Derivative Instrument Risk Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Wynn Macau Swap Wynn Macau Swap [Member] Wynn Macau Swap [Member] Two of the Swap Agreements Interest Rate Swaps One [Member] Interest Rate Swaps One [Member] Interest Rate Swap 3 Interest Rate Swap Three [Member] Interest Rate Swap 3 [Member] Interest Rate Swaps Interest Rate Swaps [Line Items] Interest Rate Swaps [Line Items] Interest rate swap assets (liability) included in deposits and other assets, fair value Number of interest rate swap agreements Number of Interest Rate Derivatives Held Interest rate swap fixed interest rate Derivative, Fixed Interest Rate Interest rate swap notional amount Derivative Asset, Notional Amount Interest rate swap maturity date Derivative, Maturity Date 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 Other comprehensive income: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract] Foreign currency translation adjustments, net of tax Unrealized (loss) gain on available-for-sale securities, net of tax Total comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Less: comprehensive income attributable to noncontrolling interest 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 2017 Long-term Debt, Maturities, Repayments of Principal in Year Three 2018 Long-term Debt, Maturities, Repayments of Principal in Year Four 2019 Long-term Debt, Maturities, Repayments of Principal in Year Five Thereafter Long-term Debt, Maturities, Repayments of Principal after Year Five Total Long Term Debt Including Accretion Of Debt Discounts long-term debt, including the accretion of debt discounts Land and improvements Land Buildings and improvements Buildings and Improvements, Gross Airplanes Flight Equipment Owned, Gross Furniture, fixtures and equipment Furniture and Fixtures, Gross Leasehold interest in land Leasehold Interest In Land Gross Leasehold interest in land, 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 Operation Revenues By Entity Operation Revenues By Entity [Axis] Operation Revenues, by Entity [Axis] Operation Revenues, by Entity [Domain] Operation Revenues By Entity [Domain] Operation Revenues, by Entity [Domain] Wynn Las Vegas Wynn Las Vegass [Member] Wynn Las Vegass [Member] Wynn Las Vegas management fees Management Fees Revenue Other revenues Other Revenue, Net Interest and other income Equity in income of subsidiaries Less: Net income attributable to noncontrolling interests. Basic and diluted earnings per common share: Net income: