Consolidated Statements Of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Revenue	$ 587,353		$ 537,562		$ 1,716,269		$ 1,637,961
Expenses:
Direct operating	408,713	[1]	351,541	[1]	1,183,613	[1]	1,098,750	[1]
Marketing	9,123		7,513		24,619		20,080
Research and development	3,819		3,140		12,105		10,684
General and administrative	61,838		56,010		172,800		156,609
Depreciation and other	52,250		50,470		149,435		133,579
Amortization of intangible assets	3,191		2,019		7,085		3,330
Total expenses	538,934		470,693		1,549,657		1,423,032
Operating income	48,419		66,869		166,612		214,929
Other income (expense), net:
Income (loss) from equity method investments, net (Note 4 and Note 8)	57,934		(6,021)		41,280		4,094
Interest expense, net	(8,402)		(3,892)		(25,953)		(11,033)
Other, net	(2,402)		(21)		(3,323)		(37)
Total other income (expense), net	47,130		(9,934)		12,004		(6,976)
Income before income taxes	95,549		56,935		178,616		207,953
Income tax expense	(12,893)		(20,161)		(26,499)		(80,608)
Net income	82,656		36,774		152,117		127,345
Foreign currency translation adjustment	1,852	[2],[3]	1,477	[2]	(304)	[2],[3]	1,342	[2]
Comprehensive income	$ 84,508		$ 38,251		$ 151,813		$ 128,687
Earnings per share:
Basic earnings per share	$ 3.03		$ 1.21		$ 5.55		$ 4.16
Diluted earnings per share	$ 2.95		$ 1.14		$ 5.32		$ 3.90
Weighted average shares used in basic per share calculations	27,244		30,454		27,391		30,605
Weighted average shares used in diluted per share calculations	28,016		32,238		28,582		32,684

[1] “Direct operating” excludes depreciation and other of $33.4 million and $98.3 million for the three and nine months ended September 30, 2013, respectively, and $34.2 million and $94.4 million for the three and nine months ended September 30, 2012, respectively.

[2] Foreign currency translation adjustment has no tax effect for the three and nine months ended September 30, 2013 and 2012, respectively.

[3] Foreign currency translation adjustment has no tax effect for the nine months ended September 30, 2013.