Information Concerning Guarantor and Non-Guarantor Subsidiaries (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Revenues	$ 253,229	$ 236,775	$ 492,144	$ 457,513
Operating expenses:
Operating costs	139,216	132,746	274,199	266,624
Selling, general and administrative	51,771	43,048	101,080	86,126
Casualty loss	372	469	546	468
Preopening costs	8	41	339	41
Depreciation and amortization	30,254	29,271	62,688	58,328
Operating income (loss)	31,608	31,200	53,292	45,926
Interest expense, net of amounts capitalized	(14,451)	(21,377)	(28,813)	(42,186)
Interest income	3,021	3,316	6,175	6,489
Income from unconsolidated companies	109	152	109	325
Other gains and (losses), net		141		(50)
Income before income taxes and discontinued operations	20,287	13,432	30,763	10,504
Provision for income taxes	(11,314)	(4,799)	(15,783)	(3,832)
Income from continuing operations	8,973	8,633	14,980	6,672
Income (loss) from discontinued operations, net of taxes	(19)	4	2	8
Net income	8,954	8,637	14,982	6,680
Comprehensive income	8,954	12,150	14,982	13,602
Issuer [Member]
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Revenues	9,301	1,461	12,099	2,936
Operating expenses:
Selling, general and administrative	8,387	4,050	16,417	8,342
Casualty loss	243	48	276	48
Preopening costs	9		22
Depreciation and amortization	757	1,002	1,526	2,029
Operating income (loss)	(95)	(3,639)	(6,142)	(7,483)
Interest expense, net of amounts capitalized	(14,660)	(21,447)	(29,294)	(42,521)
Interest income	25,132	26,247	50,461	52,074
Income before income taxes and discontinued operations	10,377	1,161	15,025	2,070
Provision for income taxes	(5,688)	(365)	(7,639)	(840)
Equity in subsidiaries' earnings, net	4,265	7,841	7,596	5,450
Income from continuing operations	8,954	8,637	14,982	6,680
Net income	8,954	8,637	14,982	6,680
Comprehensive income	8,954	12,150	14,982	13,602
Guarantor [Member]
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Revenues	253,222	236,770	492,233	457,529
Operating expenses:
Operating costs	139,216	132,746	274,199	266,652
Selling, general and administrative	43,384	38,998	84,766	77,784
Casualty loss	129	421	270	420
Preopening costs	(1)	41	317	41
Management fees	9,294	1,456	12,085	2,924
Depreciation and amortization	29,497	28,269	61,162	56,299
Operating income (loss)	31,703	34,839	59,434	53,409
Interest expense, net of amounts capitalized	(29,645)	(30,542)	(59,473)	(60,526)
Interest income	3,716	3,860	7,665	7,725
Income from unconsolidated companies	109	152	109	325
Other gains and (losses), net		141		(50)
Income before income taxes and discontinued operations	5,883	8,450	7,735	883
Provision for income taxes	(3,225)	(3,290)	(4,074)	(399)
Income from continuing operations	2,658	5,160	3,661	484
Income (loss) from discontinued operations, net of taxes				22
Net income	2,658	5,160	3,661	506
Comprehensive income	2,658	5,160	3,661	506
Non-Guarantor [Member]
Operating expenses:
Interest expense, net of amounts capitalized	(105)	(101)	(209)	(200)
Interest income	4,132	3,922	8,212	7,751
Income before income taxes and discontinued operations	4,027	3,821	8,003	7,551
Provision for income taxes	(2,401)	(1,144)	(4,070)	(2,593)
Income from continuing operations	1,626	2,677	3,933	4,958
Income (loss) from discontinued operations, net of taxes	(19)	4	2	(14)
Net income	1,607	2,681	3,935	4,944
Comprehensive income	1,607	2,681	3,935	4,944
Eliminations [Member]
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
Revenues	(9,294)	(1,456)	(12,188)	(2,952)
Operating expenses:
Operating costs				(28)
Selling, general and administrative			(103)
Management fees	(9,294)	(1,456)	(12,085)	(2,924)
Interest expense, net of amounts capitalized	29,959	30,713	60,163	61,061
Interest income	(29,959)	(30,713)	(60,163)	(61,061)
Equity in subsidiaries' earnings, net	(4,265)	(7,841)	(7,596)	(5,450)
Income from continuing operations	(4,265)	(7,841)	(7,596)	(5,450)
Net income	(4,265)	(7,841)	(7,596)	(5,450)
Comprehensive income	$ (4,265)	$ (7,841)	$ (7,596)	$ (5,450)