Inventories - Major Classes of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 28, 2014	Dec. 31, 2013
Inventory Disclosure [Abstract]
Raw materials	$ 99,203	$ 85,379
Work-in-process	37,062	34,671
Finished goods	118,505	107,091
Perishable tooling and supplies	1,759	2,156
Gross inventories	256,529	229,297
Excess and obsolete reserves	(32,815)	(21,317)
Net inventories	$ 223,714	$ 207,980