Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues:
Total revenues	$ 333,934	$ 298,778	$ 622,304	$ 574,820
Operating expenses:
Total hotel operating expenses	187,821	176,358	371,739	353,312
Entertainment	30,254	22,135	49,620	38,986
Corporate	7,640	7,468	15,969	14,877
Preopening costs	1,525	494	3,672	710
Depreciation and amortization	29,995	27,679	58,661	55,316
Total operating expenses	257,235	234,134	499,661	463,201
Operating income	76,699	64,644	122,643	111,619
Interest expense	(19,625)	(17,155)	(36,354)	(33,019)
Interest income	2,766	2,969	5,519	5,917
Income (loss) from joint ventures	1,346	(943)	(1,242)	(1,717)
Other gains and (losses), net	36	(1,324)	204	(1,396)
Income before income taxes	61,222	48,191	90,770	81,404
Provision for income taxes	(5,676)	(899)	(7,885)	(1,492)
Net income	$ 55,546	$ 47,292	$ 82,885	$ 79,912
Basic income per share	$ 1.08	$ 0.92	$ 1.62	$ 1.56
Fully diluted income per share	1.08	0.92	1.61	1.56
Dividends declared per common share	$ 0.85	$ 0.80	$ 1.70	$ 1.60
Comprehensive income, net of taxes	$ 55,630	$ 47,326	$ 83,047	$ 79,957
Rooms [Member]
Revenues:
Total revenues	121,745	110,674	229,309	214,043
Operating expenses:
Total hotel operating expenses	30,059	28,359	58,987	56,387
Food and Beverage [Member]
Revenues:
Total revenues	141,053	128,441	273,992	254,610
Operating expenses:
Total hotel operating expenses	72,394	68,285	144,372	137,442
Other Hotel [Member]
Revenues:
Total revenues	28,958	24,258	53,566	48,874
Operating expenses:
Total hotel operating expenses	76,733	73,536	152,615	147,774
Entertainment [Member]
Revenues:
Total revenues	42,178	35,405	65,437	57,293
Management Fee, Net [Member]
Operating expenses:
Total hotel operating expenses	$ 8,635	$ 6,178	$ 15,765	$ 11,709