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Leases (Components of Lease Cost) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2020
Leases [Abstract]    
Fixed $ 2,815 $ 5,897
Short-term 132 371
Total lease cost $ 2,947 $ 6,268