Revenue Recognition (Components of Lease Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue from Contract with Customer [Abstract]
Fixed billings	$ 353,040	$ 329,499	$ 1,025,182	$ 945,322
Variable billings	28,919	29,008	93,118	90,780
Total contractual operating lease billings	381,959	358,507	1,118,300	1,036,102
Adjustment for straight-line rents and amortization of acquired below-market leases and other, net	8,730	1,313	44,812	(8,041)
Less: write-off of straight-line rent and tenant receivables deemed uncollectible	(281)	(1,980)	(782)	(7,219)
Lease revenues	$ 390,408	$ 357,840	$ 1,162,330	$ 1,020,842