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Lease Accounting - Lease Income (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Leases [Abstract]    
Fixed $ 71,942 $ 71,265
Variable 19,703 7,470
Total 91,645 78,735
Termination fee income $ 10,941 $ 141