Debt - Schedule of Maturities of Long Term Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Long-term Debt, by Current and Noncurrent [Abstract]
Less: Debt issuance costs	$ (2,102)	$ (1,768)
Capital Lease Obligations
Less: Interest on capital leases	(600)
Total Long-Term Debt
Remainder of 2018	5,913
2019	13,218
2020	10,732
2021	111,373
Long-term Debt and Capital Lease Obligations	141,236
Total Debt	140,636	107,192
Less: Current portion of long-term debt	(12,409)	(8,989)
Total Long-Term Debt, net	126,125	$ 96,435
Term Loan And Revolving Credit Facility
Long-term Debt, by Current and Noncurrent [Abstract]
Remainder of 2018	2,625
2019	7,873
2020	7,873
2021	111,004
Long-term Debt	129,375
Long-term debt	129,375
Less: Current portion of long-term debt	(6,562)
Less: Debt issuance costs	(2,102)
Long-term debt, net	120,711
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	3,288
2019	5,345
2020	2,859
2021	369
Capital Lease Obligations	11,861
Less: Interest on capital leases	(600)
Capital Lease Obligations	11,261
Less: Current portion of long-term debt	(5,847)
Long-term portion of capital leases	$ 5,414