Inventories - Summary of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Inventory Net [Line Items]
Merchandise	$ 6
Finished goods	11,254	7,140
Semi-finished goods and work-in-process	56,530	46,562
Raw materials	13,328	9,933
Materials in-transit	661	1,471
Less: inventory reserve	(6,759)	(2,270)
Inventories, net	$ 75,020	$ 62,836