Condensed Consolidated Statement Of Changes In Stockholders' Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Preferred Stock [Member]	Treasury Stock [Member]	Additional Paid-In Capital [Member]	(Accumulated Deficit) / Retained Earnings [Member]	Accumulated Other Comprehensive Income Of Continuing Operations [Member]	Accumulated Other Comprehensive Income Of Discontinued Operations [Member]	Total
Balance at Dec. 31, 2009	$ 694	$ 0	$ (150)	$ 1,296,391	$ 264,917	$ 82,994	$ 40,316	$ 1,685,162
Balance, (in shares) at Dec. 31, 2009	69,412,000	0	246,000
Net loss	0	0	0	0	(104,667)	0	0	(104,667)
Foreign currency translation adjustment	0	0	0	0	0	(22,770)	(40,316)	(63,086)
Comprehensive loss	0	0	0	0	(104,667)	(22,770)	(40,316)	(167,753)
Common stock issued in connection with options (in shares)	263,000	0	0
Common stock issued in connection with options	3	0	0	5,915	0	0	0	5,918
Common stock issued in connection with acquisitions (in shares)	1,078,000	0	0
Common stock issued in connection with acquisitions	11	0	0	41,333	0	0	0	41,344
Balance at Dec. 31, 2010	708	0	(150)	1,343,639	160,250	60,224	0	1,564,671
Balance, (in shares) at Dec. 31, 2010	70,753,000	0	246,000
Net loss	0	0	0	0	(835,715)	0	0	(835,715)
Foreign currency translation adjustment	0	0	0	0	0	(53,428)	0	(53,428)
Comprehensive loss	0	0	0	0	(835,715)	(53,428)	0	(889,143)
Common stock issued in connection with options (in shares)	89,000	0	0
Common stock issued in connection with options	1	0	0	2,069	0	0	0	2,070
Common stock issued in connection with acquisitions (in shares)	1,897,000	0	0
Common stock issued in connection with acquisitions	19	0	0	23,156	0	0	0	23,175
Balance at Sep. 30, 2011	$ 728	$ 0	$ (150)	$ 1,368,864	$ (675,465)	$ 6,796	$ 0	$ 700,773
Balance, (in shares) at Sep. 30, 2011	72,739,000	0	246,000