Segment Information about Reported Product Revenues, Depreciation and Amortization and Operating Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Product revenues	$ 856,445	$ 811,300	$ 662,082
Depreciation and amortization	31,029	35,029	31,249
Operating income (loss)	121,319	98,434	50,384
Operating Segments | Automotive Segments
Segment Reporting Information [Line Items]
Product revenues	810,567	787,065	662,082
Depreciation and amortization	27,251	30,016	28,439
Operating income (loss)	170,358	144,645	91,255
Operating Segments | Industrial Segments
Segment Reporting Information [Line Items]
Product revenues	45,878	24,235
Depreciation and amortization	1,726	2,114	323
Operating income (loss)	(2,461)	(9,661)	(5,860)
Reconciling Items
Segment Reporting Information [Line Items]
Depreciation and amortization	2,052	2,899	2,487
Operating income (loss)	$ (46,578)	$ (36,550)	$ (35,011)