Accrued and Other Current Liabilities - Schedule of Accrued Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Salaries & wages	$ 5,949	$ 19,955
Incentive compensation	1,576	2,819
Income taxes	587	1,453
Interest	8,057	7,925
Vacation payable	5,700	5,801
Group medical	1,892	1,944
Transportations tax	427	892
Operating lease	769	814
Workers compensation	865	1,047
Other	2,524	2,109
Total accrued liabilities	$ 28,346	$ 44,759