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Commitments and Contingencies - Summary of Operating Lease Expense (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Commitments And Contingencies Disclosure [Abstract]        
Operating lease expense $ 1,561 $ 1,747 $ 3,153 $ 3,485