Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Product liability	$ 29,405	$ 31,169
Capitalized research and development	17,886	10,938
Employee benefits	12,009	9,641
Net operating losses and tax credit carryforwards	6,026	7,845
Share-based compensation	5,396	5,561
Accrued expenses and other reserves	4,384	4,385
Other	3,828	4,056
Total deferred tax assets	78,934	73,595
Valuation allowances	(5,937)	(5,039)
Net deferred tax assets	72,997	68,556
Goodwill and intangibles	(35,999)	(31,290)
Property, plant and equipment	(11,714)	(9,555)
Other	(2,475)	(2,353)
Total deferred tax liabilities	50,188	43,198
Net deferred tax assets	$ 22,809	$ 25,358