Income Taxes - Schedule of Net Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Gross deferred tax assets:
Accrued expenses and other	$ 3	$ 1,175
Reserves on assets	3,078	2,949
Share-based compensation awards	1,340	1,057
Minimum pension / post retirement	4,197	4,118
Net operating loss carry-forwards	5,932	8,473
Tax credit carry-forwards	1,634	1,626
Valuation allowances	(3,135)	(1,500)
Total Deferred Tax Assets	13,049	17,898
Gross deferred tax liabilities:
Depreciation	(614)	(3,658)
Goodwill and intangibles	(23,060)	(30,133)
Prepaid expenses and inventory	(785)	(192)
Revenue recognition	(1,554)	(1,634)
Total Deferred Tax Liabilities	(26,013)	(35,617)
Net deferred liabilities	$ (12,964)	$ (17,719)