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Inventories (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Inventory Disclosure [Abstract]    
Raw materials $ 215,018 $ 184,714
Work-in-process 118,947 115,308
Finished goods 371,561 338,562
Other 13,938 13,541
Inventory, Gross, Total 719,464 652,125
Adjustment to value inventory at cost on the LIFO method (91,326) (103,360)
Inventories $ 628,138 $ 548,765