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Leases - Summary of Supplemental Cash Flow Information Related to Leases (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows from operating leases $ 740 $ 2
Operating cash flows from finance leases 8 730
Financing cash flows from finance leases $ 108 $ 29