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Leases - Schedule of Lease Cost Recognized in Consolidated Statement of Operations and Other Information (Detail)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2021
USD ($)
Jun. 30, 2021
USD ($)
Lease Cost [Abstract]    
Operating lease cost $ 484 $ 868
Other information:    
Weighted-average remaining lease term - operating leases 2 years 3 months 18 days 2 years 3 months 18 days
Weighted-average discount rate - operating leases 4.80% [1] 4.80% [1]
[1] The discount rate used to compute the present value of total lease liabilities as of June 30, 2021 was based on the Company's estimated incremental borrowing rate of similar secured borrowings available to the Company as of the commencement date of lease.