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Segment Information - Summary of Assets by Segment (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Assets	$ 13,022,665	$ 13,869,547
Corporate and other
Segment Reporting Information [Line Items]
Assets	2,003,475	1,954,064
Operating Segments | Las Vegas Operations
Segment Reporting Information [Line Items]
Assets	3,017,361	2,992,870
Operating Segments | Encore Boston Harbor
Segment Reporting Information [Line Items]
Assets	2,257,729	2,300,016
Operating Segments | Macau
Segment Reporting Information [Line Items]
Assets	5,744,100	6,622,597
Operating Segments | Macau | Wynn Palace
Segment Reporting Information [Line Items]
Assets	3,255,389	3,393,790
Operating Segments | Macau | Wynn Macau
Segment Reporting Information [Line Items]
Assets	1,013,148	1,202,709
Operating Segments | Macau | Other Macau
Segment Reporting Information [Line Items]
Assets	$ 1,475,563	$ 2,026,098

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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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