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Leases - Costs included in operating expenses related to the operating lease (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2021
Leases [Abstract]    
Operating lease costs $ 1,504 $ 3,009
Variable lease cost 446 892
Total $ 1,950 $ 3,901