Segment Reporting - 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, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Product revenues	$ 243,384	$ 259,540	$ 797,924	$ 624,214
Type of Revenue [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember
Depreciation and amortization	$ 9,859	$ 10,289	$ 29,430	$ 30,777
Operating income (loss)	20,704	38,506	93,125	47,310
Automotive Segments
Segment Reporting Information [Line Items]
Product revenues	$ 233,028	$ 249,764	$ 767,503	$ 590,622
Type of Revenue [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember
Depreciation and amortization	$ 8,977	$ 9,403	$ 26,923	$ 28,191
Operating income (loss)	33,129	55,397	129,788	81,236
Medical Segments
Segment Reporting Information [Line Items]
Product revenues	$ 10,356	$ 9,776	$ 30,421	$ 33,592
Type of Revenue [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember	us-gaap:ProductMember
Depreciation and amortization	$ 654	$ 590	$ 1,818	$ 1,768
Operating income (loss)	$ (974)	$ (286)	$ (1,392)	$ 1,580
Corporate Segments
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	$ 228	$ 296	$ 689	$ 818
Operating income (loss)	$ (11,451)	$ (16,605)	$ (35,271)	$ (35,506)