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Leases - Summary of Components of Lease Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Lease Cost [Abstract]        
Operating lease cost $ 4,871 $ 3,220 $ 8,639 $ 6,337
Variable lease cost $ 1,184 $ 752 $ 2,070 $ 1,346