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Investment in Joint Venture - Additional Information (Detail) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Schedule of Equity Method Investments [Line Items]
Net sales	$ 221,666,000		$ 196,349,000	$ 434,922,000	$ 365,497,000
Joint Venture
Schedule of Equity Method Investments [Line Items]
Impairment charge		$ 16,600,000		$ 0
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					$ 200,000
Product \| Joint Venture \| Maximum
Schedule of Equity Method Investments [Line Items]
Net sales	$ 100,000		$ 100,000	$ 100,000