Condensed Consolidating Statement of Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012	Jun. 30, 2011 As Restated [Member]		Jun. 30, 2011 As Restated [Member]		Jun. 30, 2012 Parent [Member]	Jun. 30, 2012 Parent [Member]	Jun. 30, 2011 Parent [Member] As Restated [Member]	Jun. 30, 2011 Parent [Member] As Restated [Member]	Jun. 30, 2012 Guarantor Subsidiaries [Member]	Jun. 30, 2012 Guarantor Subsidiaries [Member]	Jun. 30, 2011 Guarantor Subsidiaries [Member] As Restated [Member]	Jun. 30, 2011 Guarantor Subsidiaries [Member] As Restated [Member]	Jun. 30, 2012 Non-Guarantor Subsidiaries [Member]	Jun. 30, 2012 Non-Guarantor Subsidiaries [Member]	Jun. 30, 2011 Non-Guarantor Subsidiaries [Member] As Restated [Member]	Jun. 30, 2011 Non-Guarantor Subsidiaries [Member] As Restated [Member]	Jun. 30, 2012 Consolidation, Eliminations [Member]	Jun. 30, 2012 Consolidation, Eliminations [Member]	Jun. 30, 2011 Consolidation, Eliminations [Member] As Restated [Member]	Jun. 30, 2011 Consolidation, Eliminations [Member] As Restated [Member]
Condensed Financial Statements, Captions [Line Items]
NET INCOME (LOSS)	$ 10,605	$ 15,304	$ 12,713	[1]	$ 60,826	[1]	$ 10,605	$ 15,304	$ 12,713	$ 60,826	$ 14,021	$ 21,496	$ 13,366	$ 48,641	$ 3,366	$ 6,218	$ 4,565	$ 7,468	$ (17,387)	$ (27,714)	$ (17,931)	$ (56,109)
Foreign currency translation (losses) gains, net of tax	(4,790)	(2,204)	1,858	[1]	3,127	[1]	(4,790)	(2,204)	1,858	3,127	(117)	997	(357)	(244)	(41)	1,559	2,635	599	158	(2,556)	(2,278)	(355)
Unrealized gains (losses) on cash flow hedges, net of tax	(2,117)	(417)	(270)	[1]	(105)	[1]	(2,117)	(417)	(270)	(105)	0	0	0	0	0	0	0	0	0	0	0	0
Reclassification adjustment for gains (losses) in net income	1,428	2,715	(90)	[1]	(66)	[1]	1,428	2,715	(90)	(66)	0	0	0	0	0	0	0	0	0	0	0	0
Other comprehensive (loss) income	(5,479)	94	1,498	[1]	2,956	[1]	(5,479)	94	1,498	2,956	(117)	997	(357)	(244)	(41)	1,559	2,635	599	158	(2,556)	(2,278)	(355)
Net change in other comprehensive (loss) income	$ 5,126	$ 15,398	$ 14,211	[1]	$ 63,782	[1]	$ 5,126	$ 15,398	$ 14,211	$ 63,782	$ 13,904	$ 22,493	$ 13,009	$ 48,397	$ 3,325	$ 7,777	$ 7,200	$ 8,067	$ (17,229)	$ (30,270)	$ (20,209)	$ (56,464)

[1] (1) As restated - See Note 14 “Restatement of Previously Issued Financial Statements” of Notes to Condensed Consolidated Financial Statements.See notes to Condensed Consolidated Financial Statements.