Segment Information - Summary of Assets by Segment (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Assets	$ 14,273,347	$ 13,871,281
Corporate and other
Segment Reporting Information [Line Items]
Assets	2,367,406	2,193,396
Operating Segments | Las Vegas Operations
Segment Reporting Information [Line Items]
Assets	3,122,987	2,806,972
Operating Segments | Encore Boston Harbor
Segment Reporting Information [Line Items]
Assets	2,371,999	2,456,667
Operating Segments | Macau
Segment Reporting Information [Line Items]
Assets	6,410,955	6,414,246
Operating Segments | Macau | Wynn Macau
Segment Reporting Information [Line Items]
Assets	1,713,929	1,656,625
Operating Segments | Macau | Wynn Palace
Segment Reporting Information [Line Items]
Assets	3,666,518	3,734,210
Operating Segments | Macau | Other Macau
Segment Reporting Information [Line Items]
Assets	$ 1,030,508	$ 1,023,411