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Inventories (Detail) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Raw materials $ 179,451 $ 215,018
Work-in-process 121,331 118,947
Finished goods 355,072 371,561
Other 15,528 13,938
Inventory, Gross, Total 671,382 719,464
Adjustment to value inventory at cost on the LIFO method (68,419) (91,326)
Inventories $ 602,963 $ 628,138