Commitments and Contingencies - Schedule of Lease Costs Recorded in Consolidated Statements of Operations and Comprehensive Loss (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Operating lease cost	$ 9,804
Variable lease cost	2,675
Short-term lease cost	438
Total	$ 12,917

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Amount of lease cost recognized by lessee for lease contract.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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