Investment in Non-Consolidated Joint Venture - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Net sales	$ 163,746	$ 102,528
Net income	6,001	5,238
Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Acquired investment in joint venture	49.00%
Autocam [Member]
Schedule of Equity Method Investments [Line Items]
Net sales	20
Amount due from joint venture	178
Autocam [Member] | Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Net sales	14,195		50,466
Net income	$ 1,523		$ 9,004