Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues:
Total revenues	$ 360,565	$ 292,249	$ 333,934	$ 288,370	$ 345,175	$ 264,724	$ 298,778	$ 276,042	$ 1,275,118	$ 1,184,719	$ 1,149,207
Operating expenses:
Total hotel operating expenses									771,239	733,599	722,439
Entertainment									109,249	84,513	74,627
Corporate									30,833	31,387	26,883
Preopening costs									4,869	1,926
Depreciation and amortization	31,221	30,994	29,995	28,666	28,097	28,546	27,679	27,637	120,876	111,959	109,816
Impairment charges									23,783
Other-than-temporary impairment loss on held-to-maturity securities:
Total other-than-temporary impairment loss										41,961
Less portion recognized in other comprehensive income										(6,543)
Net impairment loss recognized in earnings on held-to-maturity securities										35,418
Total operating expenses									1,060,849	998,802	933,765
Operating income	51,526	40,100	76,699	45,944	36,788	37,510	64,644	46,975	214,269	185,917	215,442
Interest expense									(74,961)	(66,051)	(63,906)
Interest income									10,469	11,818	11,500
Income (loss) from joint ventures									125,005	(4,402)	(2,794)
Other gains and (losses), net									1,633	(337)	2,524
Income before income taxes	161,191	24,454	61,222	29,548	21,141	24,400	48,191	33,213	276,415	126,945	162,766
(Provision) benefit for income taxes	(1,997)	(1,863)	(5,676)	(2,209)	51,177	(530)	(899)	(593)	(11,745)	49,155	(3,400)
Net income	$ 159,194	$ 22,591	$ 55,546	$ 27,339	$ 72,318	$ 23,870	$ 47,292	$ 32,620	$ 264,670	$ 176,100	$ 159,366
Basic income per share	$ 3.10	$ 0.44	$ 1.08	$ 0.53	$ 1.41	$ 0.47	$ 0.92	$ 0.64	$ 5.16	$ 3.44	$ 3.12
Diluted income per share	$ 3.09	$ 0.44	$ 1.08	$ 0.53	$ 1.41	$ 0.46	$ 0.92	$ 0.63	5.14	3.43	3.11
Dividends declared per common share									$ 3.40	$ 3.20	$ 3.00
Rooms [Member]
Revenues:
Total revenues									$ 454,370	$ 431,768	$ 420,011
Operating expenses:
Total hotel operating expenses									118,060	112,636	109,618
Food and Beverage [Member]
Revenues:
Total revenues									519,843	483,945	477,493
Operating expenses:
Total hotel operating expenses									282,906	269,824	267,307
Hotel, Other [Member]
Revenues:
Total revenues									153,690	143,947	142,139
Operating expenses:
Total hotel operating expenses									339,529	327,283	323,320
Management Fees [Member]
Operating expenses:
Total hotel operating expenses									30,744	23,856	22,194
Entertainment [Member]
Revenues:
Total revenues									$ 147,215	$ 125,059	$ 109,564