v3.2.0.727

Inventories - Inventories (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Raw materials	$ 31,846	$ 28,283
Work-in-process	20,704	19,169
Finished goods	82,448	84,020
Total	134,998	131,472
Adjust to LIFO cost	(42,436)	(53,221)
Lower of cost or market adjustment	0	0
Inventory, net	$ 92,562	$ 78,251

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