Document Type Document Type Other Other Nonoperating Income (Expense) Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Treasury stock Treasury Stock [Member] Net proceeds received from settlement agreement becoming effective and final Proceeds from Legal Settlements Dividends and Noncontrolling Interest [Table] Noncontrolling Interest [Table] Segments [Axis] Segments [Axis] Commitments and Contingencies [Line Items] Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] 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 Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Change in loyalty program liabilities Change in loyalty program liabilities Change in loyalty program liabilities LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT) Liabilities and Equity [Abstract] Payment for dividend tax agreement Payments For Dividend Tax Agreement Payments For Dividend Tax Agreement Distribution to noncontrolling interest Decrease from distributions to noncontrolling interest Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Complementary tax rate Complementary Tax Rate Complementary Tax Rate WML 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] Security Exchange Name Security Exchange Name Proceeds from issuance of long-term debt Proceeds from Issuance of Long-term Debt Operating loss Operating Income (Loss) Payments for financing costs Payments of Debt Issuance Costs Total current liabilities Liabilities, Current Restricted Stock Performance Awards Performance Shares [Member] Prepaid expenses and other Prepaid Expense and Other Assets, Current Variable Rate [Domain] Variable Rate [Domain] Other Retail Leases And Other [Member] Retail Leases And Other [Member] Long-term debt excluding the Redemption Note Long Term Debt Excluding Redemption Note Long Term Debt Excluding Redemption Note Variable Rate [Axis] Variable Rate [Axis] Commitments and contingencies (Note 15) Commitments and Contingencies Issuance of restricted stock Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Repurchase of common stock Payments for Repurchase of Common Stock ASSETS Assets [Abstract] Accounting Policies [Abstract] Accounting Policies [Abstract] Subsidiaries Subsidiaries [Member] Entity Address, State or Province Entity Address, State or Province Accounts and construction payables Accounts Payable, Current Foreign currency translation Goodwill, Foreign Currency Translation Gain (Loss) Organization and Basis of Presentation [Line Items] Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items] Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] Accumulated deficit Retained Earnings (Accumulated Deficit) Operating lease assets Operating Lease, Right-of-Use Asset Loss on extinguishment of debt Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Hotel Hotel [Member] Shares repurchased by the Company and held as treasury shares (in shares) Treasury Stock, Shares, Acquired Stockholders' equity (deficit): Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Subsidiary equity issuance Additional Paid in Capital, Subsidiary Stock Issued During Period, Value, New Issues Additional Paid in Capital, Subsidiary Stock Issued During Period, Value, New Issues Schedule of Assets and Liabilities Carried at Fair Value Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Beginning balance (in shares) Ending balance (in shares) Shares, Outstanding Preferred stock, par value $0.01; 40,000,000 shares authorized; zero shares issued and outstanding Preferred Stock, Value, Issued Common stock, par value (usd per share) Common Stock, Par or Stated Value Per Share Prepayment of debt Payment for Debt Extinguishment or Debt Prepayment Cost Other long-term liabilities Other Liabilities, Noncurrent Finance lease payments Finance Lease, Principal Payments Retail Retail [Member] Stock-based compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Construction in progress Construction in Progress, Gross Inventories Inventory, Net Fair Value, Measurement Frequency [Domain] Measurement Frequency [Domain] Gain Contingencies, Nature [Axis] Gain Contingencies, Nature [Axis] WRF 7 3/4% Senior Notes, due 2025 Five and One Over Eight Percentage Senior Notes, Due 2029 [Member] Five and One Over Eight Percentage Senior Notes, Due 2029 Percentage of markers due from customers Concentration Risk, Percentage Geographical [Domain] Geographical [Domain] Proceeds from issuance of subsidiary common stock Proceeds from Issuance of Subsidiary Common Stock Proceeds from Issuance of Subsidiary Common Stock Cash, cash equivalents and restricted cash: Cash and Cash Equivalents, Period Increase (Decrease) [Abstract] Statement [Line Items] Statement [Line Items] Class of Stock [Domain] Class of Stock [Domain] Forecast Forecast [Member] Basic and diluted net loss per common share: Earnings Per Share, Basic and Diluted [Abstract] Wynn Macau Credit Facilities [Member] Wynn Macau Credit Facilities [Member] Wynn Macau Credit Facilities Accrued interest Interest Payable, Current Airplanes Flight Equipment, Gross Statement [Table] Statement [Table] Write-offs Accounts Receivable, Allowance for Credit Loss, Writeoff Preferred stock, shares issued Preferred Stock, Shares Issued Repayment on credit facility Repayments of Long-term Lines of Credit Entity Small Business Entity Small Business Principles of Consolidation Consolidation, Policy [Policy Text Block] Income Taxes [Line Items] Income Taxes [Line Items] Income Taxes [Line Items] Revenue Recognition [Abstract] Revenue Recognition [Abstract] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Gain Contingency, Nature [Domain] Gain Contingency, Nature [Domain] Contingent rental income Operating Lease, Variable Lease Income Newly issued shares of common stock in registered public offering (shares) Sale of Stock, Number of Shares Issued in Transaction Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Proceeds from issuance of Wynn Resorts, Limited common stock Proceeds from Issuance of Common Stock Schedule of Minimum and Contingent Operating Lease Income Operating Lease, Lease Income [Table Text Block] Goodwill [Roll Forward] Goodwill [Roll Forward] Amendment Flag Amendment Flag Schedule of Shares used in Calculation of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Weighted average common shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Total stock-based compensation costs Share-based Payment Arrangement, Expensed and Capitalized, Amount Corporate and other Corporate, Non-Segment [Member] Other accrued liabilities Other Accrued Liabilities, Current Cancellation of restricted stock (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Entity Central Index Key Entity Central Index Key Measurement Frequency Measurement Frequency [Axis] Wynn Macau Wynn Macau Wynn Macau [Member] Wynn Macau [Member] Other liabilities related to intangible assets Intangible Assets, Other Liabilities Incurred Intangible Assets, Other Liabilities Incurred Casino Casino [Member] Cash equivalents Cash Equivalents, at Carrying Value WML 5 5/8% Senior Notes, due 2028 Five and One Over Eight Percentage Wynn Macau Limited Senior Notes Due Two Thousand Twenty Nine [Member] Five and One Over Eight Percentage Wynn Macau Limited Senior Notes Due Two Thousand Twenty Nine Senior Notes Senior Notes [Member] Geographical [Axis] Geographical [Axis] Segments [Domain] Segments [Domain] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Potential dilutive effect of stock options and restricted stock (shares) Weighted Average Number Diluted Shares Outstanding Adjustment Effect of exchange rate on cash, cash equivalents and restricted cash Effect of Exchange Rate on Cash and Cash Equivalents Income Statement Location [Axis] Income Statement Location [Axis] Accounts receivable, allowance for credit losses Less: allowance for credit losses Accounts Receivable, Allowance for Credit Loss, Current Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Income Statement Location [Domain] Income Statement Location [Domain] 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] Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] General and administrative Selling, General and Administrative Expense Land and improvements Land and Land Improvements Furniture, fixtures and equipment Furniture and Fixtures, Gross Wynn/CA Plaza Property Owner, LLC And Wynn/CA Property Owner, LLC (The Borrowers) 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] Other assets Other Assets, Noncurrent Segment Information Segment Reporting Disclosure [Text Block] Issuance of common stock, net of $17.7 million underwriter discounts, commissions and other expenses Stock Issued During Period, Value, New Issues Issuance of restricted stock (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Accounts receivable, net of allowance for credit losses of $98,043 and $100,329 Receivables, net Receivables, Net, Current Total assets Assets Assets Scenario [Axis] Scenario [Axis] Title of 12(b) Security Title of 12(b) Security Macau MACAU Voting interest retained (percent) Business Combination, Percentage of Voting Interest Retained Business Combination, Percentage of Voting Interest Retained Wynn Palace and Wynn Macau Wynn Palace and Wynn Macau [Member] Wynn Palace and Wynn Macau [Member] Leases Lessor, Operating Leases [Text Block] Macau Operations Macau Operations [Member] Macau Operations Interest expense, net of amounts capitalized Interest Expense Proceeds Sale of Stock, Consideration Received on Transaction Numerator: Net Income (Loss) Available Common Stockholders, Basic And Diluted [Abstract] Net Income (Loss) Available Common Stockholders, Basic And Diluted [Abstract] Proceeds from sale of assets and other Proceeds from Sale of Productive Assets Product and Service [Axis] Product and Service [Axis] Change in advanced room deposits and ticket sales Change in advanced room deposits and ticket sales Change in advanced room deposits and ticket sales Total liabilities Liabilities Liabilities Other Macau Other Macau [Member] Other Macau [Member] Proceeds from revolving credit facility Proceeds from Issuance of Unsecured Debt Wynn Macau Revolver, due 2022 Senior Revolving Credit Facility, due 2022 Senior Revolving Credit Facility, Due 2022 [Member] Senior Revolving Credit Facility, Due 2022 [Member] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Quoted Market Prices in Active Markets (Level 1) Fair Value, Inputs, Level 1 [Member] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Legal Entity Type of Counterparty [Domain] Legal Entity Type of Counterparty [Domain] HIBOR HIBOR [Member] HIBOR [Member] Change in derivatives fair value Unrealized Gain (Loss) on Derivatives Cash dividend paid (usd per share) Common Stock, Dividends, Per Share, Cash Paid Debt Instrument [Axis] Debt Instrument [Axis] Additional paid-in capital Additional Paid-in Capital [Member] Operating Segments Operating Segments [Member] Shares repurchased by the Company and held as treasury shares Treasury Stock, Value, Acquired, Cost Method Interest rate collar Derivative Liability Adjustments to reconcile net loss to net cash used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Receivables, gross Accounts Receivable, before Allowance for Credit Loss, Current Litigation Case [Axis] Litigation Case [Axis] WRF Credit Facilities WRF Senior Secured Credit Facilities [Member] WRF Senior Secured Credit Facilities [Member] WML Credit Facilities Wynn Macau Limited Credit Facilities [Member] Wynn Macau Limited Credit Facilities Common stock, shares outstanding Common Stock, Shares, Outstanding Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Senior Secured Revolving Credit Facility Revolving Credit Facility [Member] Retail Joint Venture Variable Interest Entity Disclosure [Text Block] Loss before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Other comprehensive (loss) income: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract] Outstanding letters of credit Letters of Credit Outstanding, Amount Common stock, shares authorized Common Stock, Shares Authorized Concentration Risk Type [Axis] Concentration Risk Type [Axis] Property and equipment, gross Property, Plant and Equipment, Gross Proceeds from exercise of stock options Proceeds from Stock Options Exercised Positive Outcome of Litigation Positive Outcome of Litigation [Member] Change in total customer contract liabilities Change in total customer contract liabilities Change in total customer contract liabilities Income Statement [Abstract] Income Statement [Abstract] Accumulated other comprehensive loss AOCI Attributable to Parent [Member] Long-term operating lease liabilities Operating Lease, Liability, Noncurrent Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Less: Unamortized debt issuance costs and original issue discounts and premium, net Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Current assets: Assets, Current [Abstract] Interest income Investment Income, Interest Equity interest retained (percent) Business Combination, Percentage of Equity Interest Retained Business Combination, Percentage of Equity Interest Retained Consolidated Entities [Axis] Consolidated Entities [Axis] Comprehensive loss attributable to Wynn Resorts, Limited Comprehensive Income (Loss), Net of Tax, Attributable to Parent Preferred stock, par value (usd per share) Preferred Stock, Par or Stated Value Per Share Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Scenario [Domain] Scenario [Domain] Legal Entity [Axis] Legal Entity [Axis] Capital expenditures, net of construction payables and retention Payments to Acquire Property, Plant, and Equipment City Area Code City Area Code Consolidation Items [Domain] Consolidation Items [Domain] Rooms Rooms [Member] Rooms [Member] Document Period End Date Document Period End Date Commitments and Contingencies [Table] Commitments And Contingencies [Table] Commitments and Contingencies [Table] Long-Term Debt Long-term Debt [Text Block] WLV 5 1/4% Senior Notes, due 2027 Five and One Over Four Percentage Senior Notes, Due May 15, 2027 [Member] Five and One Over Four Percentage Senior Notes, Due May 15, 2027 Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Casino outstanding chips and front money deposits Casino outstanding chips and front money deposits Casino outstanding chips and front money deposits Change in derivatives fair value Gain (Loss) on Derivative Instruments, Net, Pretax Net loss Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Accrual of net expense related to commitment to pay salary, tips and benefits continuation for all U.S. employees Employee-related Liabilities Total stock-based compensation capitalized Share-based Payment Arrangement, Amount Capitalized Stock-based compensation Share-based Payment Arrangement, Noncash Expense Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Entity [Domain] Entity [Domain] Cover page. Cover [Abstract] 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. Loyalty program liabilities Loyalty programs Loyalty programs Effect of exchange rate Accounts Receivable, Allowance For Credit Loss, Effect Of Exchange Rate Accounts Receivable, Allowance For Credit Loss, Effect Of Exchange Rate Long-term debt total Long-term debt Long-term Debt Customer deposits Increase (Decrease) in Contract with Customer, Liability WRF Revolver, due 2024 Senior Revolving Credit Facility, Due 2024 [Member] Senior Revolving Credit Facility, Due 2024 [Member] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Restricted cash Restricted Cash and Cash Equivalents Term Loan Medium-term Notes [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Cost of goods and services sold Cost of Goods and Services Sold Schedule of Share-based Compensation, Allocation of Recognized Period Costs [Table] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Total operating expenses Costs and Expenses Equity Components [Axis] Equity Components [Axis] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-based Payment Arrangement [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Receivables [Abstract] Receivables [Abstract] Legal Entity of Counterparty, Type [Axis] Legal Entity of Counterparty, Type [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Pre-opening Pre-Opening Costs WRF Term Loan, due 2024 Senior Term Loan Facility, Due 2024 [Member] Senior Term Loan Facility, Due 2024 [Member] Finance lease liabilities arising from obtaining finance lease assets Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Less: net loss attributable to noncontrolling interests Net loss attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest WML 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] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Entity Interactive Data Current Entity Interactive Data Current Schedule of Restricted Cash and Cash Equivalents Restrictions on Cash and Cash Equivalents [Table Text Block] Operating revenues: Revenues [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Stockholders' Equity (Deficit) Stockholders' Equity Note Disclosure [Text Block] Receivables Accounts Receivable [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Unusual or Infrequent Item, or Both [Axis] Unusual or Infrequent Item, or Both [Axis] Entity Registrant Name Entity Registrant Name WRF 5 1/8% Senior Notes, due 2029 Seven And Three Over Four Percentage WRF Senior Notes Due 2025 [Member] Seven And Three Over Four Percentage WRF Senior Notes Due 2025 WML 5 1/8% Senior Notes, due 2029 Five and Five Over Eight Percentage Wynn Macau Limited Senior Notes Due Two Thousand Twenty Eight [Member] Five and Five Over Eight Percentage Wynn Macau Limited Senior Notes Due Two Thousand Twenty Eight Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Assets: Assets, Fair Value Disclosure [Abstract] Allowance for Doubtful Accounts Receivable [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Total other operating expenses Other Cost and Expense, Operating Summary of Operations by Segment Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Inventories, 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. Corporate expenses and other Corporate Expenses And Other Corporate Expenses And Other Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Consolidation Items [Axis] Consolidation Items [Axis] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Percentage of ownership Noncontrolling Interest, Ownership Percentage by Parent Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction 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 Available gaming area capacity (percent) Available Gaming Area Capacity, Percent Available Gaming Area Capacity, Percent General and administrative General And Administrative [Member] General And Administrative [Member] Total rental income Operating Lease, Lease Income Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Public Stock Offering Public Stock Offering [Member] Public Stock Offering [Member] Restricted cash Restricted Cash, Noncurrent Sale of Stock [Axis] Sale of Stock [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Minimum rental income Operating Lease, Lease Income, Lease Payments Cash Cash Balance as of January 1, 2021 Balance as of June 30, 2021 Goodwill Cancellation of restricted stock Stock Issued During Period, Value, Restricted Stock Award, Forfeitures Document Transition Report Document Transition Report Share-based Compensation, Allocation of Recognized Period Costs [Line Items] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Other income (expense): Other non-operating income and expenses Nonoperating Income (Expense) [Abstract] Dividends declared per common share (usd per share) Common Stock, Dividends, Per Share, Declared Revolving credit facility, maximum borrowing capacity Debt Instrument, Face Amount Required annual payment, complimentary tax otherwise due by stockholders of Wynn Macau S.A. Dividend Tax Agreement, Complimentary Tax, Required Annual Payment Dividend Tax Agreement, Complimentary Tax, Required Annual Payment Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Other operating expenses Other Operating Costs And Expenses [Abstract] Other Operating Costs and Expenses [Abstract] Document Quarterly Report Document Quarterly Report Liabilities: Liabilities, Fair Value Disclosure [Abstract] Schedule of Goodwill Schedule of Goodwill [Table Text Block] General and Administrative Expense General and Administrative Expense [Member] Equity [Abstract] Equity [Abstract] Receivables, net Increase (Decrease) in Receivables Term of facility Long-term Debt, Term Customer deposits Contract with Customer, Liability, Current Derivative Litigation Derivative Litigation [Member] Derivative Litigation Encore Boston Harbor Encore Boston Harbor [Member] Encore Boston Harbor [Member] Diluted (in shares) Weighted average common and common equivalent shares outstanding (shares) Weighted Average Number of Shares Outstanding, Diluted Litigation Case [Domain] Litigation Case [Domain] Basic (in usd per share) Net income (loss) attributable to Wynn Resorts, Limited per common share, basic (in usd per share) Earnings Per Share, Basic Entity File Number Entity File Number Debt Disclosure [Abstract] Debt Disclosure [Abstract] Recoveries of receivables previously written off Accounts Receivable, Allowance for Credit Loss, Recovery Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities Repayments of long-term debt Repayments of credit facilities Repayments of Long-term Debt Stock-based compensation expense Share-based Payment Arrangement, Expense Customer Contract Liabilties Revenue Recognition [Text Block] Revenue Recognition [Text Block] Total operating revenues Total operating revenues Revenue from Contract with Customer, Including Assessed Tax Common stock, par value $0.01; 400,000,000 shares authorized; 131,318,273 and 123,482,836 shares issued; 115,683,983 and 107,888,336 shares outstanding, respectively Common Stock, Value, Issued Goodwill and Intangible Assets Disclosure [Abstract] Document Fiscal Year Focus Document Fiscal Year Focus Restricted cash Restricted Cash, Current Current portion of long-term debt Less: Current portion of long-term debt Long-term Debt, Current Maturities Schedule of Receivables, net Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Entity Current Reporting Status Entity Current Reporting Status Price per share (usd per share) Sale of Stock, Price Per Share Allowance for credit losses, percent of gross casino receivables Accounts Receivable, Allowance For Credit Loss, Percent Of Gross Casino Receivables Accounts Receivable, Allowance For Credit Loss, Percent Of Gross Casino Receivables Interest rate during period Debt Instrument, Interest Rate During Period Goodwill and intangible assets, net Intangible Assets, Net (Including Goodwill) WLV 4 1/4% Senior Notes, due 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] Wynn Macau Term Loan, due 2022 Senior Term Loan Facility, due 2022 Senior Term Loan Facility, Due 2022 [Member] Senior Term Loan Facility, Due 2022 [Member] Wynn Palace Wynn Palace [Member] Wynn Palace [Member] Total comprehensive loss Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Common stock, shares issued Common Stock, Shares, Issued Cash and cash equivalents Total cash and cash equivalents Cash and Cash Equivalents, at Carrying Value 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] Long-term debt Total long-term debt, net of current portion Long-term Debt, Excluding Current Maturities Segment Reporting [Abstract] Segment Reporting [Abstract] Outside the United States, primarily Asia Asia [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Total Wynn Resorts, Limited stockholders' equity (deficit) Stockholders' Equity Attributable to Parent WLV 5 1/2% Senior Notes, due 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] Underwriter discounts, commissions, and other expenses Payments of Stock Issuance Costs Concentration Risk Type [Domain] Concentration Risk Type [Domain] Total liabilities and stockholders' deficit Liabilities and Equity Buildings and improvements Buildings and Improvements, Gross Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Income Taxes Income Tax Disclosure [Text Block] Entity Address, City or Town Entity Address, City or Town Accrued compensation and benefits Employee-related Liabilities, Current Fair Value, Hierarchy Fair Value Hierarchy and NAV [Axis] Purchase of intangible and other assets Payments to Acquire Intangible Assets Total Wynn Resorts, Ltd. stockholders' equity Parent [Member] 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. Antidilutive securities excluded from computation of earnings per share (shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Equity Component [Domain] Equity Component [Domain] Dividends paid Payments of Dividends Gaming tax expenses Gaming Tax Expenses Gaming tax expense. Property and equipment, net Property and equipment, net Property, Plant and Equipment, Net Entity Tax Identification Number Entity Tax Identification Number Retail Joint Venture Retail Joint Venture [Member] Retail Joint Venture [Member] Commitment to pay salary, tips, and benefits continuation for all U.S. employess for period from April 1 through May 15, 2020 COVID-19, Commitment To Pay Salary, Tips, And Benefits Continuation For U.S. Employees For Specified Period [Member] COVID-19, Commitment To Pay Salary, Tips, And Benefits Continuation For U.S. Employees For Specified Period Stock-Based Compensation Share-based Payment Arrangement [Text Block] Net loss attributable to Wynn Resorts, Limited Net loss attributable to Wynn Resorts, Limited Net Income (Loss) Attributable to Parent Increase (decrease) in cash from changes in: Increase (Decrease) in Operating Capital [Abstract] Distribution to noncontrolling interest Payments to Noncontrolling Interests LIBOR London Interbank Offered Rate (LIBOR) [Member] Leases [Abstract] Leases [Abstract] Wynn Interactive Wynn Interactive [Member] Wynn Interactive Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Total current assets Assets, Current Current Fiscal Year End Date Current Fiscal Year End Date Corporate and other Corporate and Other [Member] Goodwill Goodwill Disclosure [Text Block] Less: comprehensive loss attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Net loss attributable to Wynn Resorts, Limited: Earnings Per Share [Abstract] Rooms Occupancy [Member] WML Wynn Macau, Limited [Member] Wynn Macau, Limited [Member] Cash and Cash Equivalents [Abstract] Cash and Cash Equivalents [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Wynn Las Vegas Las Vegas Operations Wynn Las Vegas [Member] Wynn Las Vegas [Member] Subsidiary, Sale of Stock [Line Items] Subsidiary, Sale of Stock [Line Items] 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. Net gain related to derivative litigation settlement Gain (Loss) Related to Litigation Settlement Accounts and construction payables related to property and equipment Accounts Payable, Current, Amount Related to Property Plant and Equipment Accounts Payable, Current, Amount Related to Property Plant and Equipment Supplemental cash flow disclosures: Supplemental Cash Flow Information [Abstract] Entity Filer Category Entity Filer Category Share Based Compensation Allocated Costs Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Common stock Common Stock [Member] Entertainment, retail and other Entertainment, retail and other (2) Entertainment Retail And Other [Member] Entertainment Retail And Other [Member] Product and Service [Domain] Product and Service [Domain] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Cash dividends declared Cash dividends Dividends, Cash Geographic Concentration Risk Geographic Concentration Risk [Member] Schedule of Property and Equipment, Net Property, Plant and Equipment [Table Text Block] Senior Secured Term Loan Secured Debt [Member] Available borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Issuance of common stock, net of $17.7 million underwriter discounts, commissions and other expenses (in shares) Shares issued to noncontrolling interest (shares) Stock Issued During Period, Shares, New Issues Reversal of compensation cost previously recognized for awards forfeited in connection with departure of employee Pension and Other Postretirement Benefits Expense (Reversal of Expense), Noncash Unusual or Infrequent Item, or Both [Domain] Unusual or Infrequent Item, or Both [Domain] Schedule of Variable Interest Entities [Line Items] Schedule of Equity Method Investments [Line Items] Stated interest rate Debt Instrument, Interest Rate, Stated Percentage WRF Wynn Resorts Finance, LLC [Member] Wynn Resorts Finance, LLC [Member] Provision for credit losses Provision for credit losses Accounts Receivable, Credit Loss Expense (Reversal) Common Class A Common Class A [Member] Less: accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Schedule of Customer Contract Liabilities Schedule of Customer Contract Liabilities [Table Text Block] [Table Text Block] for Schedule of Customer Contract Liabilities [Table] (Decrease) increase in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Other income (expense), net Total other non-operating income and expenses Nonoperating Income (Expense) Liability settled with shares of common stock Stock Issued Basic (in shares) Weighted average common shares outstanding (shares) Weighted Average Number of Shares Outstanding, Basic Interest in addition to variable rate Debt Instrument, Basis Spread on Variable Rate Operating expenses: Costs and Expenses [Abstract] Ownership [Axis] Ownership [Axis] Foreign currency translation adjustments, before and after tax Currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Treasury stock, shares Treasury Stock, Shares Sale of Stock [Domain] Sale of Stock [Domain] Ownership [Domain] Ownership [Domain] Total customer contract liabilities Total Customer Contract Liabilities Total Customer Contract Liabilities Cash paid for interest, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activities Total stockholders' deficit Beginning balance Ending balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] 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. Additional paid-in capital Additional Paid in Capital Class of Stock [Axis] Class of Stock [Axis] Provision for income taxes Income tax expense (benefit) Income Tax Expense (Benefit) Balance, beginning of period Balance, end of period Total cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Diluted (in usd per share) Net income attributable to Wynn Resorts, Ltd. per common share, diluted (in usd per share) Earnings Per Share, Diluted Local Phone Number Local Phone Number Fair value, excluding the redemption note Debt Instrument, Fair Value, Excluding The Redemption Note Debt Instrument, Fair Value, Excluding The Redemption Note Receivables, net Loans, Notes, Trade and Other Receivables, Excluding Allowance for Credit Losses [Text Block] Summary of Assets by Segment Reconciliation of Assets from Segment to Consolidated [Table Text Block] Dividends and Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Cash, Cash Equivalents and Restricted Cash Cash and Cash Equivalents Disclosure [Text Block] Long-term debt, gross Long-term Debt, Gross Summary of Long-Term Debt Schedule of Long-term Debt Instruments [Table Text Block] Depreciation expense Depreciation Entity Address, Address Line One Entity Address, Address Line One Entity Emerging Growth Company Entity Emerging Growth Company Deferred income taxes Deferred Income Tax Expense (Benefit) Gaming Taxes Gaming Taxes Policy [Policy Text Block] Gaming Taxes Policy Change in other gaming related liabilities Change in other gaming related liabilities Change in other gaming related liabilities Award Type [Axis] Award Type [Axis] Amortization of debt issuance costs Amortization of Debt Issuance Costs Denominator: Weighted Average Number Of Shares Outstanding, Basic And Diluted [Abstract] Weighted Average Number Of Shares Outstanding, Basic And Diluted [Abstract] Preferred stock, shares authorized Preferred Stock, Shares Authorized Noncontrolling interests Noncontrolling Interest [Member] Food and beverage Food and beverage Food and Beverage [Member] Cash dividends declared, recorded as reduction of retained earnings Dividends, Common Stock, Cash Restricted cash Restricted Cash Retained earnings (Accumulated deficit) Retained Earnings [Member] Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Advanced room deposits and ticket sales Advanced room deposits and ticket sales Advanced room deposits and ticket sales Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Basis of Presentation and Significant Accounting Policies Significant Accounting Policies [Text Block] Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Balance at beginning of year Balance at end of period Accounts Receivable, Allowance for Credit Loss Equity Award [Domain] Award Type [Domain] Trading Symbol Trading Symbol Property and Equipment, net Property, Plant and Equipment Disclosure [Text Block] Treasury stock, at cost; 15,634,290 and 15,594,500 shares, respectively Treasury Stock, Value Earnings Per Share Earnings Per Share [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] WML 5 1/2% Senior Notes, due 2026 Five And One Over Two Percentage Wynn Macau Limited Senior Notes Due Two Thousand Twenty Six [Member] Five And One Over Two Percentage Wynn Macau Limited Senior Notes Due Two Thousand Twenty Six Current liabilities: Liabilities, Current [Abstract] Entity Shell Company Entity Shell Company Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Fair Value, Measurements, Recurring Fair Value, Recurring [Member] WLV Wynn Las Vegas, LLC and Wynn Las Vegas Capital Corp [Member] Wynn Las Vegas, LLC and Wynn Las Vegas Capital Corp Other gaming related liabilities Other gaming related liabilities Other gaming related liabilities Recently Issued and Adopted Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Retail Term Loan, due 2025 Retail Term Loan Agreement [Member] Retail Term Loan Agreement [Member]