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Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) |  | 12 Months Ended |
--- | --- | --- | ---
Feb. 18, 2012 USD ($) shares | Dec. 31, 2020 USD ($) ft² | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Jan. 01, 2018 USD ($)
Summary of Significant Accounting Policies |  |  |  |  |
Capitalized interest |  | $ 1,300,000 | $ 53,900,000 | $ 57,300,000 |
Amortization of debt issuance costs |  | 28,932,000 | 28,954,000 | 36,917,000 |
Gaming tax expenses |  | 527,500,000 | 2,240,000,000 | 2,440,000,000 |
Total advertising costs |  | $ 28,300,000 | $ 61,300,000 | $ 40,600,000 |
Cumulative effect, change in accounting |  |  |  |  | $ 0
Accumulated Other Comprehensive Income (Loss) |  |  |  |  |
Summary of Significant Accounting Policies |  |  |  |  |
Cumulative effect, change in accounting |  |  |  |  | (9,211,000)
Retained Earnings (Accumulated Deficit) |  |  |  |  |
Summary of Significant Accounting Policies |  |  |  |  |
Cumulative effect, change in accounting |  |  |  |  | $ 9,211,000
Minimum |  |  |  |  |
Summary of Significant Accounting Policies |  |  |  |  |
Terms of lease contracts |  | 5 years |  |  |
Maximum |  |  |  |  |
Summary of Significant Accounting Policies |  |  |  |  |
Terms of lease contracts |  | 10 years |  |  |
Wynn Palace |  |  |  |  |
Summary of Significant Accounting Policies |  |  |  |  |
Square footage of non-cancelable operating leases | ft² |  | 101,000 |  |  |
Wynn Macau |  |  |  |  |
Summary of Significant Accounting Policies |  |  |  |  |
Square footage of non-cancelable operating leases | ft² |  | 59,000 |  |  |
Wynn Las Vegas |  |  |  |  |
Summary of Significant Accounting Policies |  |  |  |  |
Square footage of non-cancelable operating leases | ft² |  | 140,000 |  |  |
Encore Boston Harbor |  |  |  |  |
Summary of Significant Accounting Policies |  |  |  |  |
Square footage of non-cancelable operating leases | ft² |  | 35,500 |  |  |
Aruze USA, Inc. |  |  |  |  |
Summary of Significant Accounting Policies |  |  |  |  |
Common shares redeemed and canceled (in shares) | shares | 24,549,222 |  |  |  |
Debt instrument, aggregate principal amount | $ 1,940,000,000 |  |  |  |
Debt instrument, interest rate | 2.00% |  |  |  |
Aruze USA, Inc. | Promissory Note | Redemption Price Promissory Note With Former Stockholder and Related Party, Due February 18, 2022; Interest At 2% |  |  |  |  |
Summary of Significant Accounting Policies |  |  |  |  |
Common shares redeemed and canceled (in shares) | shares | 24,549,222 |  |  |  |
Debt instrument, aggregate principal amount | $ 1,940,000,000 |  |  |  |
Debt instrument, interest rate | 2.00% |  |  |  |

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