Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net loss Net Income (Loss) Attributable to Parent Adjustments to reconcile net loss 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 Stock-based compensation expense Share-based Compensation Amortization and write-off 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 (Benefit) for Doubtful Accounts Provision (Benefit) 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 Increase (decrease) in cash from changes in: Increase (Decrease) in Operating Capital [Abstract] Receivables, net Increase (Decrease) in Receivables Inventories and prepaid expenses and other Increase Decrease In Inventories Prepaid Expenses And Other Current Assets The net change during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities, the net change during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods and the net change during the reporting period in other operating assets not otherwise defined in the taxonomy. Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Increase (Decrease) in Due to Affiliates Increase (Decrease) in Due to Affiliates Net cash (used in) provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Capital expenditures, net of construction payables and retention Payments to Acquire Property, Plant, and Equipment Deposits and purchase of 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 Due To And From Affiliates Net Due To And From Affiliates Net The cash inflow/outflow to or from an entity that is controlling, under the control of, or within the same control group as the reporting entity by means of direct or indirect ownership. 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] 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 Restricted cash Proceeds from (Repayments of) Restricted Cash, Financing Activities Payments of financing costs Payments of Debt Issuance Costs Net cash provided by (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 in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Balance, beginning of period Cash and Cash Equivalents, at Carrying Value Balance, end of period Accounting Policies [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Related Party Transactions [Abstract] Related Party Transactions Related Party Transactions Disclosure [Text Block] Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 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] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Wynn Resorts Wynn Resorts [Member] Wynn Resorts [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Debt instrument, interest rate Debt Instrument, Interest Rate, Stated Percentage Extinguishment of debt Extinguishment of Debt, Amount Percentage of principal amount redeemed Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Premium of redemption price Extinguishment of Debt, Premium of Redemption Price Extinguishment of Debt, Premium of Redemption Price Unamortized financing costs and original issue discount Unamortized financing costs and original issue discount expensed with redemption Unamortized financing costs and original issue discount expensed with redemption Subsequent Event Subsequent Events [Text Block] Schedule Of Commitments And Contingencies [Table] Schedule Of Commitments And Contingencies [Table] Schedule Of Commitments And Contingencies [Table] 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] Federal Plaintiffs Federal Plaintiffs [Member] Federal Plaintiffs [Member] Litigation Status [Axis] Litigation Status [Axis] Litigation Status [Domain] Litigation Status [Domain] Pending Litigation Pending Litigation [Member] 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] Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Director Director [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] 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] 4 1/4% 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] 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] 2022 Indenture Two Thousand Twenty Two Indenture [Member] Two Thousand Twenty Two Indenture [Member] 2023 Indenture Two Thousand Twenty Three Indenture [Member] Two Thousand Twenty Three Indenture [Member] Redemption Price Promissory Note With Former Stockholder And Related Party Due February Eighteen Two Thousand Twenty Two 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] Schedule Of Commitments And Contingencies [Line Items] Schedule Of Commitments And Contingencies [Line Items] Schedule Of Commitments And Contingencies [Line Items] 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 shares voted (over 86 mil) 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 Debt Instrument, Face Amount Debt instrument, maturity date Debt Instrument, Maturity Date Debt purchase price percentage of aggregate principal amount Debt Purchase Price Percent Of Principal Amount Debt Purchase Price Percent Of Principal Amount Call period after a change of control and subsequent credit rating condition Debt Instrument, Call Period, Change of Control and Subsequent Credit Rating Condition Debt Instrument, Call Period, Change of Control and Subsequent Credit Rating Condition Interest payments 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 Number of derivative actions Loss Contingency, New Claims Filed, Number Period to file amended complaint after dismissal Loss Contingency, Period to File Amended Complaint After Dismissal Loss Contingency, Period to File Amended Complaint After Dismissal Property, Plant and Equipment [Abstract] Land and improvements Land Buildings and improvements Buildings and Improvements, Gross Furniture, fixtures and equipment Furniture and Fixtures, Gross Construction in progress Construction in Progress, Gross Total 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 Property, Plant and Equipment, Net Debt Disclosure [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] 5 1/2% Senior Notes, due March 1, 2025 Five and One Half Percent Senior Notes Due March One Twenty Twenty Five [Member] Five and One Half Percent Senior Notes Due March One Twenty Twenty Five [Member] Senior Notes [Member] Senior Notes [Member] Mortgages [Member] Mortgages [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Payable to Affiliate Due to Affiliate Long-term debt total Long-term Debt Current portion of long-term debt Long-term Debt, Current Maturities Non current portion of long-term debt Long-term Debt, Excluding Current Maturities 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 Sales Revenue, Services, Other Less: promotional allowances Promotional Allowances Net revenues Revenue, Net 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 Provision for Doubtful Accounts Provision for Doubtful Accounts Management and license fees Management Fee Expense 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. Total operating costs and expenses Costs and Expenses Operating income Operating Income (Loss) Other income (expense): Nonoperating Income (Expense) [Abstract] Interest income Investment Income, Interest Interest expense Interest Expense Loss on extinguishment of debt Equity in income from unconsolidated affiliates Income (Loss) from Equity Method Investments Other income (expense), net Nonoperating Income (Expense) Net loss Other comprehensive income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Total comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Summary of Long-Term Debt Schedule of Long-term Debt Instruments [Table Text Block] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] Ferrari And Maserati Automobile Dealership Ferrari And Maserati Automobile Dealership [Member] Ferrari And Maserati Automobile Dealership [Member] Accounting Policies [Line Items] Schedule of Equity Method Investments [Line Items] Percentage of ownership in joint ventures Equity Method Investment, Ownership Percentage Cash and cash equivalents maximum maturity term months Cash And Cash Equivalents Maximum Maturity Term Months Cash And Cash Equivalents Maximum Maturity Term Months Restricted cash Restricted Cash and Cash Equivalents, Current Percentage of credit markers due from customers residing outside of 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. Gaming tax expenses Gaming Tax Expenses Gaming tax expense. Property Charges and Other [Abstract] Property Charges and Other [Abstract] Schedule of Property and Equipment, Net Property, Plant and Equipment [Table Text Block] Long-Term Debt Long-term Debt [Text Block] 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 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 Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Membership Interests Description Membership Interests Description Membership Interests Description Principles of Consolidation Consolidation, 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] Accounts Receivable and Credit Risk Trade and Other Accounts Receivable, Policy [Policy Text Block] Revenue Recognition and Promotional Allowances Revenue Recognition, Policy [Policy Text Block] Gaming Taxes Gaming Taxes Policy [Policy Text Block] Gaming Taxes Policy Stock-Based Compensation Compensation Related Costs, Policy [Policy Text Block] Recently Issued Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization Consolidation And Presentation Of Financial Statements Disclosure [Table] Organization, Consolidation and Presentation of Financial Statements Disclosure [Table] Wynn Capital Wynn Las Vegas Capital Corporation [Member] Wynn Las Vegas Capital Corporation [Member] 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] Common stock, authorized (in shares) Common Stock, Shares Authorized Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Company owned, share issued and outstanding (in shares) Investment Owned, Balance, Shares Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Scenario, Forecast [Member] Scenario, Forecast [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] Lease agreement [Member] Lease agreement [Member] Lease agreement [Member] Lease Agreement [Axis] Lease Agreement [Axis] Lease Agreement [Axis] Lease Agreement [Domain] Lease Agreement [Domain] Lease Agreement [Domain] S W Lease [Member] S W Lease [Member] S W Lease [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Due to affiliates, net Due to Related Parties, Current Management fee payable Management Fee Due To Affiliate The amount payable to the Parent Company associated with the day to day management services of the subsidiary provided by the Parent Company. Management and license fees from related party Related Party Transaction, Amounts of Transaction Management fee as percentage of net revenues Management Fee Percentage The percentage of Net Revenues charged to the subsidiary by the Parent Company associated with the day to day management services of the subsidiary provided by the Parent Company. Corporate support service allocations Corporate Expense Allocations Expenses allocated to the subsidiary by the Parent Company related to corporate support services. Intellectual property fee, percent of gross monthly revenues Intellectual Property License Fee, Percent of Gross Monthly Revenues Intellectual Property License Fee, Percent of Gross Monthly Revenues Intellectual Property License Fee, Percent of Gross Monthly Revenues, subsequent to termination of original lease agreement Intellectual Property License Fee, Percent of Gross Monthly Revenues, subsequent to termination of original lease agreement Intellectual Property License Fee, Percent of Gross Monthly Revenues, subsequent to termination of original lease agreement License fees Taxes and Licenses Operating Leases, Income Statement, Annual Lease Revenue Operating Leases, Income Statement, Annual Lease Revenue Operating Leases, Income Statement, Annual Lease Revenue Surname Rights Agreement Expiration Date Surname Rights Agreement Expiration Date Surname Rights Agreement Expiration Date Lease facility area Lease Facility Area Lease Facility Area Notice required for lease termination Notice Required For Lease Termination Notice required for lease termination at Villa Suite, days Operating lease, minimum rentals per month Operating Leases, Minimum Rentals Per Period Operating Leases, Minimum Rentals Per Period Receivables [Abstract] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Legal Entity of Counterparty, Type [Axis] Legal Entity of Counterparty, Type [Axis] Legal Entity Type of Counterparty [Domain] Legal Entity Type of Counterparty [Domain] Casino Casino [Member] Casino [Member] Hotel Hotel [Member] Retail Leases and Other Retail Leases And Other [Member] Retail Leases And Other [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Receivables, gross Accounts Receivable, Gross, Current Less: allowance for doubtful accounts Allowance for Doubtful Accounts Receivable, Current Receivables, net Receivables, Net, Current Receivables, net Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Property and Equipment, net Property, Plant and Equipment Disclosure [Text Block] Promotional Allowance [Table] Promotional Allowance [Table] Promotional Allowance [Table] Promotional Allowances [Axis] Promotional Allowances [Axis] Promotional Allowances [Axis] Promotional Allowances [Domain] Promotional Allowances [Domain] Promotional Allowances [Domain] Rooms Rooms [Member] Rooms [Member] Food and Beverage Food And Beverage [Member] Food And Beverage [Member] Entertainment Retail and Other Entertainment Retail And Other [Member] Entertainment Retail And Other [Member] Promotional Allowances [Line Items] Promotional Allowance [Line Items] Promotional Allowance [Line Items] Estimated costs of promotional allowances primarily included in casino expense Estimated Costs Of Promotional Allowances Primarily Included In Casino Expenses Estimated Costs Of Promotional Allowances Primarily Included In Casino Expenses 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. Debt Issuance Cost Debt Issuance Cost Unamortized discount Debt Instrument, Unamortized Discount Long-term debt due date Summary Estimated Cost of Promotional Allowances Summary Of Estimated Cost Of Promotional Allowance [Table Text Block] Summary of estimated cost of promotional allowance. Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Receivables, net Inventories Inventory, Net Prepaid expenses and other Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property and equipment, net Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Deferred financing costs, net Deferred Finance Costs, Noncurrent, Net Deposits and other assets Other Assets, Noncurrent Investment in unconsolidated affiliates Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Total assets Assets LIABILITIES AND MEMBER’S DEFICIT Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Current portion of long-term debt Customer deposits Customer Deposits, Current Gaming taxes payable Gaming Taxes Payable Current Carrying amount as of the balance sheet date for taxes payable (due within one year or within one normal operating cycle, if longer) based on gross gaming revenue in the jurisdictions in operation, subject to applicable jurisdictional adjustments. Accrued compensation and benefits Employee-related Liabilities, Current Accrued interest Interest Payable, Current Other accrued liabilities Other Accrued Liabilities, Current Total current liabilities Liabilities, Current Long-term debt Due to affiliates, net Due to Related Parties, Noncurrent Other long-term liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and contingencies (Note 8) Commitments and Contingencies Member’s deficit: Stockholders' Equity Attributable to Parent [Abstract] Contributed capital Members' Capital Accumulated deficit Retained Earnings (Accumulated Deficit) Total member’s deficit Members' Equity Total liabilities and member’s deficit Liabilities and Equity Organization and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Maximum Maximum [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 5 1/2% Senior Notes due 2025 5 1/2% Senior Notes due 2025 [Member] [Member] 5 1/2% Senior Notes due 2025 [Member] [Member] Notes under tender offer face amount redeemed Notes Under Tender Offer Face Amount Redeemed Notes Under Tender Offer, Face Amount Redeemed Principal amount for cash tender price Principal Amount For Cash Tender Price Principal Amount For Cash Tender Price Tender offer consideration in cash tender offer TenderOfferConsiderationInCashTenderOffer. Cash tender offer consideration received by note holder per stated principal amount owed to note holder. Principal Amount For Cash Tender Price. Principal Amount For Cash Tender Price. Principal Amount For Cash Tender Price. Gains (losses) on extinguishment of debt Gains (Losses) on Extinguishment of Debt Unamortized deferred financing costs Unamortized Deferred Financing Costs Unamortized Deferred Financing Costs Expensed Fees due to extinguishment of debt Extinguishment of Debt, Fees included in Gain (Loss) Extinguishment of Debt, Fees included in Gain (Loss) Debt instrument, face amount Percentage of principal repayment on event of change of control Percentage Of Principal Repayment On Event Of Change Of Control Percentage Of Principal Repayment On Event Of Change Of Control Payment default classification period for interest payment Payment Default Classification Period For Interest Payment Payment Default Classification Period For Interest Payment Fair value of debt instrument Debt Instrument, Fair Value Disclosure Long-term debt Summary of Receivables, Net Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]