Segment Information about Reported Product Revenues, Depreciation and Amortization and Operating Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Product revenues	$ 240,056	$ 261,504	$ 741,303	$ 792,490
Type of Revenue [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember
Depreciation and amortization	$ 11,064	$ 12,898	$ 33,281	$ 38,721
Operating income (loss)	20,329	15,713	62,231	51,955
Automotive Segments
Segment Reporting Information [Line Items]
Product revenues	228,243	238,849	700,300	724,420
Industrial Segments
Segment Reporting Information [Line Items]
Product revenues	11,813	22,655	41,003	68,070
Operating Segments | Automotive Segments
Segment Reporting Information [Line Items]
Product revenues	$ 228,243	$ 238,849	$ 700,300	$ 724,420
Type of Revenue [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember
Depreciation and amortization	$ 10,170	$ 11,060	$ 30,660	$ 32,839
Operating income (loss)	36,629	37,908	114,456	116,312
Operating Segments | Industrial Segments
Segment Reporting Information [Line Items]
Product revenues	$ 11,813	$ 22,655	$ 41,003	$ 68,070
Type of Revenue [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember
Depreciation and amortization	$ 480	$ 1,170	$ 1,319	$ 3,822
Operating income (loss)	$ (3,496)	$ (4,335)	$ (12,131)	$ (18,896)
Reconciling Items
Segment Reporting Information [Line Items]
Type of Revenue [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember
Depreciation and amortization	$ 414	$ 668	$ 1,302	$ 2,060
Operating income (loss)	$ (12,804)	$ (17,860)	$ (40,094)	$ (45,461)