Investments in Unconsolidated Joint Ventures (Statements of Operations of the Joint Ventures) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Schedule of Equity Method Investments [Line Items]
Total revenue		$ 803,200	$ 754,307
Expenses
Transaction costs		911	0
Depreciation and amortization		208,734	177,624
Total expenses		568,661	499,978
Other income (expense)
Interest expense		(134,207)	(101,228)
Gains on sales of real estate		0	22,701
Net income		105,628	176,957
Income (Loss) from Equity Method Investments		(7,569)	2,189
Unconsolidated Joint Ventures [Member]
Schedule of Equity Method Investments [Line Items]
Total revenue	[1]	151,423	124,491
Expenses
Operating		57,206	45,641
Transaction costs		74	0
Depreciation and amortization		49,978	44,664
Total expenses		107,258	90,305
Other income (expense)
Losses from early extinguishment of debt		0	(1,327)
Interest expense		(57,250)	(30,373)
Unrealized loss on derivative instruments		(10,610)	0
Net income		(23,695)	2,486
Company's share of net income		(6,902)	3,394
Basis differential	[2]	(667)	(1,205)
Income (Loss) from Equity Method Investments		(7,569)	2,189
Straight Line Rent Adjustments		6,300	27,500
Above and below market rent adjustments, net		200	100
Colorado Center [Member] | Unconsolidated Joint Ventures [Member]
Other income (expense)
Straight Line Rent Adjustments		$ 300	$ 100

[1] Includes straight-line rent adjustments of approximately $6.3 million and $27.5 million for the three months ended March 31, 2023 and 2022, respectively.

[2] Includes straight-line rent adjustments of approximately $0.3 million and $0.1 million for the three months ended March 31, 2023 and 2022, respectively. Also includes net above-/below-market rent adjustments of approximately $0.2 million and $0.1 million for the three months ended March 31, 2023 and 2022, respectively.