Accounts Receivable and Sales Concentrations - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net sales	$ 202,029	$ 204,961	$ 214,272	$ 212,226	$ 183,854	$ 154,824	$ 164,856	$ 163,746	$ 833,488	$ 667,280	$ 488,601
Accounts receivable, net	139,547				123,005				139,547	123,005
SKF [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net sales									$ 104,200	$ 105,700	$ 128,000
Accounts receivable concentrations in excess									10.00%	10.00%
Accounts receivable, net	$ 20,500				$ 16,200				$ 20,500	$ 16,200