Accounts Receivable and Sales Concentrations - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net sales	$ 183,854	$ 154,824	$ 164,856	$ 163,746	$ 153,761	$ 125,632	$ 106,680	$ 102,528	$ 667,280	$ 488,601	$ 373,206
Accounts receivable, net	123,005				97,510				123,005	97,510
SKF [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net sales									$ 105,700	$ 128,000	$ 132,700
Accounts receivable concentrations in excess									10.00%	10.00%
Accounts receivable, net	$ 16,200				$ 17,500				$ 16,200	$ 17,500