Leases - Lease Receivables (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Leases [Abstract]
Straight line rent adjustments	$ 3,924	$ 3,912	$ 13,128	$ 12,963
Straight line rent receivables	76,033		76,033		$ 68,824
Variable lease, income	24,098	18,606	60,446	56,654
Tenant reimbursements and other income	$ 23,167	$ 17,495	$ 57,609	$ 53,346

Amount of excess of rental income recognized over rental payment required by lease.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant