Consolidated Statements Of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Consolidated Statements Of Comprehensive Loss [Abstract]
Revenue	$ 1,630,154	$ 1,618,097	$ 2,972,702	$ 2,961,155
Operating expenses:
Direct operating expenses (excludes depreciation and amortization)	643,222	630,357	1,239,717	1,225,174
Selling, general and administrative expenses (excludes depreciation and amortization)	420,577	411,341	836,405	814,704
Corporate expenses (excludes depreciation and amortization)	82,196	77,557	154,902	161,320
Depreciation and amortization	174,062	179,734	348,933	361,916
Impairment charges	4,902	0	4,902	0
Other operating income, net	(1,628)	1,113	(1,463)	3,508
Operating income	303,567	320,221	386,380	401,549
Interest expense	440,605	407,508	871,719	793,033
Gain on marketable securities	0	130,898	0	130,898
Equity in earnings (loss) of nonconsolidated affiliates	(16)	5,971	(13,343)	9,612
Loss on extinguishment of debt	(47,503)	0	(51,419)	(3,888)
Other income (expense), net	12,157	(18,098)	13,698	(19,098)
Loss before income taxes	(172,400)	31,484	(536,403)	(273,960)
Income tax benefit	621	(11,477)	(67,766)	84,848
Consolidated net loss	(171,779)	20,007	(604,169)	(189,112)
Less amount attributable to noncontrolling interest	14,852	12,805	6,651	6,689
Net loss attributable to the Company	(186,631)	7,202	(610,820)	(195,801)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(12,232)	(45,615)	(14,449)	(69,028)
Unrealized gain on securities and derivatives:
Unrealized holding gain on marketable securities	(405)	11,171	679	15,606
Unrealized holding gain on cash flow derivatives	0	16,243	0	31,066
Other adjustments to comprehensive income (loss)	0	0	0	(998)
Reclassification adjustment for realized gains on securities included in net income (loss)	0	(82,320)	3,309	(82,320)
Other comprehensive income (loss)	(12,637)	(100,521)	(10,461)	(105,674)
Comprehensive loss	(199,268)	(93,319)	(621,281)	(301,475)
Less amount attributable to noncontrolling interest	(1,979)	(8,354)	(4,942)	(11,577)
Comprehensive loss attributable to the Company	$ (197,289)	$ (84,965)	$ (616,339)	$ (289,898)