Investment in Joint Venture - Additional Information (Detail) - USD ($)	3 Months Ended				9 Months Ended
	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2020	Sep. 30, 2019
Schedule of Equity Method Investments [Line Items]
Net sales	$ 113,761,000		$ 120,459,000		$ 308,506,000	$ 378,838,000
Joint Venture
Schedule of Equity Method Investments [Line Items]
Impairment charge		$ 0		$ 16,600,000
Wuxi Weifu Autocam Precision Machinery Company, Ltd.
Schedule of Equity Method Investments [Line Items]
Investment in joint venture	49.00%				49.00%
Product | Joint Venture
Schedule of Equity Method Investments [Line Items]
Net sales	$ 100,000		$ 100,000		$ 100,000	$ 100,000