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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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, after accumulated amortization, of debt discount.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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

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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 lease obligation, classified as noncurrent.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. 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 classified as other.

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Debt - Summary of Long Term Debt (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2020	Dec. 31, 2020	May 04, 2020	May 04, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Unamortized debt issuance costs	$ (538)
Equipment financing obligations	3,808					$ 8,631
Total debt	171,928					105,460
Less: Current portion of long-term debt	0					(5,000)
Less: Current portion of equipment financing obligations	(2,841)					(5,432)
Total long-term debt, net	169,087					95,028
1.25% Convertible Senior Notes \| Convertible Debt
Debt Instrument [Line Items]
Stated interest rate (as a percent)		1.25%	1.25%	1.25%	1.25%
Principal	201,250					0
Unamortized debt discount	(32,592)					0
Unamortized debt issuance costs	(538)					0
Long-term debt	168,120					0
Total term loan, net
Debt Instrument [Line Items]
Principal	0					97,500
Unamortized debt issuance costs	0					(671)
Long-term debt	0					96,829
Finance Obligations
Debt Instrument [Line Items]
Less: Current portion of equipment financing obligations	$ (2,841)					$ (5,432)