Revenue Recognition (Components of Lease Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Fixed billings	$ 342,891	$ 305,963	$ 672,142	$ 615,823
Variable billings	31,225	30,123	64,199	61,772
Total contractual operating lease billings	374,116	336,086	736,341	677,595
Adjustment for straight-line rents and amortization of acquired below-market leases and other, net	15,276	(3,573)	36,082	(9,354)
Less: write-off of straight-line rent and tenant receivables deemed uncollectible	(501)	(1,569)	(501)	(5,239)
Lease revenues	$ 388,891	$ 330,944	$ 771,922	$ 663,002