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Leases - Schedule of Components of Lease Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Leases [Abstract]    
Operating lease costs [1] $ 1,328 $ 1,425
Finance lease costs:    
Amortization of leased assets 589 213
Interest on lease liabilities 51 27
Net lease costs $ 1,968 $ 1,665
[1] Excludes short-term leases and variable lease costs, which are immaterial.