Debt - Principal Payments on Debt (Detail) $ in Thousands	Jun. 30, 2018 USD ($)
Debt Disclosure [Abstract]
Remainder of 2018	$ 5,446
2019	3,423
2020	3,380
2021	21,667
2022 and thereafter	8,161
Total	42,077
Add: capital lease principal payments	162
Less: unamortized debt discount and debt issuance costs	(1,891)
Total	40,348
Less: current portion of long-term debt	(6,682)
Long-term debt, net of current portion	$ 33,666

Long-term Debt, Maturities, Repayments of Principal in Year Five and Thereafter

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Unamortized debt issuance and debt discount.

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Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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