Information Concerning Guarantor And Non-Guarantor Subsidiaries (Details) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Condensed Consolidated Statements of Operations [Abstract]
Revenues	$ 236,775	$ 183,879	$ 457,513	$ 398,360
Operating expenses:
Operating costs	132,746	104,746	266,624	235,301
Selling, general and administrative	43,048	36,288	86,126	78,190
Casualty loss	469	31,347	468	31,347
Preopening costs	41	6,240	41	6,240
Depreciation and amortization	29,271	25,951	58,328	53,022
Operating (loss) income	31,200	(20,693)	45,926	(5,740)
Interest expense, net of amounts capitalized	(21,377)	(20,480)	(42,186)	(40,595)
Interest income	3,316	3,286	6,489	6,508
Income from unconsolidated companies	152	190	325	117
Net gain on extinguishment of debt	0	100	0	1,299
Other gains and (losses), net	141	(147)	(50)	(160)
Income before income taxes	13,432	(37,744)	10,504	(38,571)
Provision for income taxes	(4,799)	11,697	(3,832)	10,722
Income from continuing operations	8,633	(26,047)	6,672	(27,849)
Income from discontinued operations, net of taxes	4	3,327	8	3,279
Net income	8,637	(22,720)	6,680	(24,570)
Parent Company [Member]
Condensed Consolidated Statements of Operations [Abstract]
Revenues	1,461	1,682	2,936	3,274
Operating expenses:
Operating costs			0
Selling, general and administrative	4,050	4,366	8,342	9,700
Casualty loss	48	3,800	48	3,800
Depreciation and amortization	1,002	1,171	2,029	2,455
Operating (loss) income	(3,639)	(7,655)	(7,483)	(12,681)
Interest expense, net of amounts capitalized	(21,447)	(20,789)	(42,521)	(41,254)
Interest income	26,247	24,143	52,074	48,211
Net gain on extinguishment of debt		100		1,299
Other gains and (losses), net		1		4
Income before income taxes	1,161	(4,200)	2,070	(4,421)
Provision for income taxes	(365)	1,436	(840)	780
Equity in subsidiaries' earnings, net	7,841	(19,956)	5,450	(20,929)
Income from continuing operations	8,637	(22,720)	6,680	(24,570)
Net income	8,637	(22,720)	6,680	(24,570)
Guarantor Subsidiaries [Member]
Condensed Consolidated Statements of Operations [Abstract]
Revenues	236,770	183,872	457,529	398,395
Operating expenses:
Operating costs	132,746	104,746	266,652	235,311
Selling, general and administrative	38,998	31,922	77,784	68,527
Casualty loss	421	27,547	420	27,547
Preopening costs	41	6,240	41	6,240
Management fees	1,456	1,675	2,924	3,262
Depreciation and amortization	28,269	24,780	56,299	50,567
Operating (loss) income	34,839	(13,038)	53,409	6,941
Interest expense, net of amounts capitalized	(30,542)	(29,131)	(60,526)	(58,070)
Interest income	3,860	5,015	7,725	9,823
Income from unconsolidated companies	152	190	325	117
Other gains and (losses), net	141	(148)	(50)	(164)
Income before income taxes	8,450	(37,112)	883	(41,353)
Provision for income taxes	(3,290)	11,013	(399)	12,485
Income from continuing operations	5,160	(26,099)	484	(28,868)
Income from discontinued operations, net of taxes		34	22	34
Net income	5,160	(26,065)	506	(28,834)
Non-Guarantor Subsidiaries [Member]
Operating expenses:
Interest expense, net of amounts capitalized	(101)	(155)	(200)	(155)
Interest income	3,922	3,723	7,751	7,358
Income before income taxes	3,821	3,568	7,551	7,203
Provision for income taxes	(1,144)	(752)	(2,593)	(2,543)
Income from continuing operations	2,677	2,816	4,958	4,660
Income from discontinued operations, net of taxes	4	3,293	(14)	3,245
Net income	2,681	6,109	4,944	7,905
Consolidation, Eliminations [Member]
Condensed Consolidated Statements of Operations [Abstract]
Revenues	(1,456)	(1,675)	(2,952)	(3,309)
Operating expenses:
Operating costs			(28)	(10)
Selling, general and administrative				(37)
Management fees	(1,456)	(1,675)	(2,924)	(3,262)
Interest expense, net of amounts capitalized	30,713	29,595	61,061	58,884
Interest income	(30,713)	(29,595)	(61,061)	(58,884)
Equity in subsidiaries' earnings, net	(7,841)	19,956	(5,450)	20,929
Income from continuing operations	(7,841)	19,956	(5,450)	20,929
Net income	$ (7,841)	$ 19,956	$ (5,450)	$ 20,929