CONSOLIDATED STATEMENTS OF EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Series A Convertible Preferred Stock [Member]	Class A Common Stock [Member]	Class B Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]
BALANCE at Dec. 31, 2009	$ 1,171,840		$ 4,484	$ 599	$ 1,410,587	$ (333,993)	$ 95,912	$ (5,749)
BALANCE (in shares) at Dec. 31, 2009			56,046,176	7,490,936
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Stock-based compensation	7,415		0	0	7,415	0	0	0
Acquisition of noncontrolling interests - Pro. BG business	(3,250)		0	0	(34,696)	0	0	31,446
Adjustement Media Pro Entertainment (in shares)			0	0
Adjustment Media Pro Entertainment	(1,146)		0	0	0	0	0	(1,146)
Share issuance (Note 13)	(6,188)		64	0	(5,568)	0	0	(684)
Share issuance (Note 13) (in shares)			800,000	0
Stock options exercised (in shares)			32,313	0
Stock options exercised	591		2	0	589	0	0	0
Other	(524)		0	0	(524)	0	0	0
Dividends	(173)		0	0	0	0	0	(173)
Net income / (loss)	96,773		0	0	0	100,175	0	(3,402)
Currency translation adjustment	(17,586)		0	0	0	0	(18,167)	581
BALANCE at Dec. 31, 2010	1,247,752		4,550	599	1,377,803	(233,818)	77,745	20,873
BALANCE (in shares) at Dec. 31, 2010			56,878,489	7,490,936
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Stock-based compensation	5,898		0	0	5,898	0	0	0
Repurchase of 2013 Convertible Notes (Note 4)	(8,383)		0	0	(8,383)	0	0	0
Issuance of 2015 Convertible Notes, net of transaction costs	11,852		0	0	11,852	0	0	0
Reclassification of capped call options (Note 4)	0		0	0	17,273	(17,273)	0	0
Stock options exercised (in shares)			13,625	10,000
Stock options exercised	242		1	1	240	0	0	0
Other	(35)		0	0	(35)	0	0	0
Dividends	(350)		0	0	0	0	0	(350)
Net income / (loss)	(179,604)		0	0	0	(174,611)	0	(4,993)
Currency translation adjustment	(59,430)		0	0	0	0	(60,150)	720
BALANCE at Dec. 31, 2011	1,017,942	0	4,551	600	1,404,648	(425,702)	17,595	16,250
BALANCE (in shares) at Dec. 31, 2011			56,892,114	7,500,936
BALANCE (in shares) at Dec. 31, 2011		0
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Stock-based compensation	4,249			0	4,249	0	0	0
Conversion of Class B shares to Class A shares (Note 12)			601	(601)
Conversion of Class B shares to Class A shares (Note 12) (in shares)	0		7,516,936	(7,516,936)	0	0	0	0
Share issuance (Note 13)	128,363	0	1,022	0	127,341	0	0	0
Share issuance (Note 13) (in shares)		1	12,776,079	0
Repurchase of 2013 Convertible Notes (Note 4)	(868)		0	0	(868)	0	0	0
Reclassification of capped call options (Note 4)	0				21,131	(21,131)	0	0
Stock options exercised (in shares)			0	16,000
Stock options exercised	33		0	1	32	0	0	0
Other	(283)		0	0	(283)	0	0	0
Dividends	(427)		0	0	0	0	0	(427)
Net income / (loss)	(546,393)		0	0	0	(535,680)	0	(10,713)
Currency translation adjustment	28,651		0	0	0	0	28,555	96
BALANCE at Dec. 31, 2012	$ 631,267	$ 0	$ 6,174	$ 0	$ 1,556,250	$ (982,513)	$ 46,150	$ 5,206
BALANCE (in shares) at Dec. 31, 2012			77,185,129	0
BALANCE (in shares) at Dec. 31, 2012	1	1