Quarterly Financial Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Quarterly Financial Information [Line Items]
Net sales	$ 291,152	$ 191,331	$ 187,201	$ 145,989	$ 283,218	$ 209,638	$ 198,356	$ 138,354	$ 815,673	$ 829,566	$ 702,131
Seasonality	35.60%	23.50%	23.00%	17.90%	34.10%	25.30%	23.90%	16.70%	35.60%	34.10%
Gross Profit	114,926	82,014	75,337	55,115	93,543	78,211	74,648	52,669	327,392	299,071	309,670
Gross profit %	39.50%	42.90%	40.20%	37.80%	33.00%	37.30%	37.60%	38.10%
Operating Income / (loss)	(352,912)	15,179	13,197	(3,819)	(371,100)	(658,014)	10,892	5,197	(328,355)	(1,013,025)	(57,591)
Net income / (loss)	$ (371,502)	$ 35,769	$ (87,689)	$ 60,184	$ (471,518)	$ (848,735)	$ (3,333)	$ (2,034)	$ (363,238)	$ (1,325,620)	$ (150,929)