Debt - Summary of Long Term Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Unamortized debt issuance costs	$ (621)
Financing obligations	6,369	$ 8,631
Total debt	170,912	105,460
Less: Current portion of long-term debt	0	(5,000)
Less: Current portion of financing obligations	(4,458)	(5,432)
Total long-term debt, net	166,454	95,028
Convertible Debt \| 1.25% Convertible Senior Notes
Debt Instrument [Line Items]
Principal	201,250	0
Unamortized debt discount	(36,086)	0
Unamortized debt issuance costs	(621)	0
Long-term debt	164,543	0
Term Loan Facility
Debt Instrument [Line Items]
Principal	0	97,500
Unamortized debt issuance costs	0	(671)
Long-term debt	0	96,829
Financing Obligations
Debt Instrument [Line Items]
Less: Current portion of financing obligations	$ (4,458)	$ (5,432)

Amount of short-term and long-term debt and lease obligation.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt discount.

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Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.

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