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Leases - Lease Cost (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2020
Leases [Abstract]    
Operating lease cost $ 4,565 $ 13,424
Variable lease cost 1,016 2,898
Short-term lease cost 20 27
Total operating lease cost 5,601 16,349
Payments for rent $ 4,386 $ 12,857