Lease Accounting - Lease Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Fixed	$ 71,357	$ 74,902	$ 213,929	$ 219,542
Variable	10,996	8,690	40,641	23,879
Total	$ 82,353	$ 83,592	254,570	243,421
Termination fee income			$ 14,105	$ 662