Debt - Schedule of Maturities of Long Term Debt (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Long-term Debt, by Current and Noncurrent [Abstract]
Less: Debt issuance costs	$ (1,772)	$ (1,768)
Capital Lease Obligations
Less: Interest on capital leases	(709)
Total Long-Term Debt
Remainder of 2018	7,797
2019	10,831
2020	8,347
2021	76,550
Long-term Debt and Capital Lease Obligations	103,525
Total Debt	102,816	107,192
Less: Current portion of long-term debt	(10,207)	(8,989)
Total Long-Term Debt, net	90,837	$ 96,435
Term Loan And Revolving Credit Facility
Long-term Debt, by Current and Noncurrent [Abstract]
Remainder of 2018	2,813
2019	5,625
2020	5,625
2021	76,250
Long-term Debt	90,313
Long-term debt	90,313
Less: Current portion of long-term debt	(4,219)
Less: Debt issuance costs	(1,772)
Long-term debt, net	84,322
Capital Lease Obligations and Car loans
Long-term Debt, by Current and Noncurrent [Abstract]
Less: Debt issuance costs	0
Capital Lease Obligations
Remainder of 2018	4,984
2019	5,206
2020	2,722
2021	300
Capital Lease Obligations	13,212
Less: Interest on capital leases	(709)
Capital Lease Obligations	12,503
Less: Current portion of long-term debt	(5,988)
Long-term portion of capital leases	$ 6,515