Consolidated Statements Of Income (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Consolidated Statements Of Income [Abstract]
Revenues, net (including revenues, net from affiliates of $7,901, $7,211, $23,869 and $21,737, respectively)	$ 283,914	$ 271,433	$ 848,782	$ 779,818
Operating expenses:
Technical and operating (excluding depreciation and amortization and including charges from affiliates of $1,292, $914, $3,893 and $2,971, respectively)	96,420	87,801	282,714	254,694
Selling, general and administrative (including charges from affiliates of $3,184, $25,879, $53,934 and $74,832, respectively)	68,229	80,737	243,714	236,472
Restructuring credit	(191)	(579)	(240)	(839)
Depreciation and amortization	25,012	26,542	75,197	79,896
Total operating expenses	189,470	194,501	601,385	570,223
Operating income	94,444	76,932	247,397	209,595
Other income (expense):
Interest expense	(31,789)	(18,709)	(65,492)	(57,136)
Interest income	318	595	938	1,702
Write-off of deferred financing costs	0	0	(5,703)	0
Loss on extinguishment of debt	(17)	0	(14,535)	0
Miscellaneous, net	(199)	67	(120)	(92)
Total nonoperating income (expense)	(31,687)	(18,047)	(84,912)	(55,526)
Income from continuing operations before income taxes	62,757	58,885	162,485	154,069
Income tax expense	(22,440)	(25,144)	(65,388)	(65,787)
Income from continuing operations	40,317	33,741	97,097	88,282
Loss from discontinued operations, net of income taxes	(314)	(8,482)	(121)	(27,489)
Net income	$ 40,003	$ 25,259	$ 96,976	$ 60,793
Basic net income (loss) per share:
Income from continuing operations	$ 0.58	$ 0.49	$ 1.40	$ 1.28
Loss from discontinued operations	$ 0.00	$ (0.12)	$ 0.00	$ (0.40)
Net income	$ 0.58	$ 0.37	$ 1.40	$ 0.88
Basic weighted average common shares	69,284	69,161	69,203	69,161
Diluted net income (loss) per share:
Income from continuing operations	$ 0.56	$ 0.49	$ 1.38	$ 1.28
Loss from discontinued operations	$ 0.00	$ (0.12)	$ 0.00	$ (0.40)
Net income	$ 0.55	$ 0.37	$ 1.38	$ 0.88
Diluted weighted average common shares	72,268	69,161	70,209	69,161