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Leases - Schedule 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
Leases [Abstract]        
Operating lease costs [1] $ 1,414 $ 1,511 $ 2,839 $ 2,922
Finance lease costs        
Amortization of leased assets 260 25 473 46
Interest on lease liabilities 32 5 59 10
Net lease costs $ 1,706 $ 1,541 $ 3,371 $ 2,978
[1] Excludes short-term leases and variable lease costs, which are immaterial