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Benefit Plans - Pension Plan (Detail) - Southern Nevada Culinary and Bartenders Pension Plan - Multi-employer Pension Plan - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Defined Benefit Plan Disclosure |  |  |
Multi-employer plan, period contributions | $ 7.0 | $ 11.9 | $ 11.9
Total contribution threshold percentage |  | 5.00% |

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