Segment Information about Reported Product Revenues, Depreciation and Amortization and Operating Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Product revenues	$ 917,600	$ 856,445	$ 811,300
Depreciation and amortization	37,764	31,029	35,029
Operating income (loss)	106,119	121,319	98,434
Operating Segments | Automotive Segments
Segment Reporting Information [Line Items]
Product revenues	847,436	810,567	787,065
Depreciation and amortization	31,826	27,251	30,016
Operating income (loss)	174,035	170,358	144,645
Operating Segments | Industrial Segments
Segment Reporting Information [Line Items]
Product revenues	70,164	45,878	24,235
Depreciation and amortization	3,789	1,726	2,114
Operating income (loss)	(16,710)	(2,461)	(9,661)
Reconciling Items
Segment Reporting Information [Line Items]
Depreciation and amortization	2,149	2,052	2,899
Operating income (loss)	$ (51,206)	$ (46,578)	$ (36,550)