Leases (Details) $ in Thousands	12 Months Ended
Dec. 31, 2023 USD ($) Property	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Operating Leased Assets [Line Items]
Fixed and in-substance fixed lease income	$ 928,364	$ 851,409	$ 797,502
Variable lease income	324,037	287,149	262,619
Uncollectible straight line rent	1,261	12,510	5,227
Uncollectible amounts billable in lease income	(549)	13,841	23,481
Total lease income	1,283,939	1,187,452	1,113,368
2024	972,980
2025	872,330
2026	757,633
2027	633,290
2028	480,640
Thereafter	1,740,783
Total	$ 5,457,656
Number of Properties Subject to Ground Leases \| Property	21
Last Ground Lease Expiration Date	2121
Last Office Lease Expiration Date	2029
Total fixed operating lease expense	$ 18,830	17,921	18,171
Total variable lease expense	2,315	2,202	1,647
Total lease expense	21,145	20,123	19,818
Operating cash flows for operating leases	15,823	14,656	15,165
2024	16,037
2025	16,426
2026	16,214
2027	15,060
2028	14,356
Thereafter	702,914
Total undiscounted lease liabilities	781,007
Present value discount	(534,944)
Lease liabilities	246,063	213,722
Lessor [Member]
Operating Leased Assets [Line Items]
Above/below market rent and tenant rent inducement amortization, net	30,826	22,543	24,539
Ground Lease [Member]
Operating Leased Assets [Line Items]
Total fixed operating lease expense	14,727	13,759	13,862
Total variable lease expense	1,586	1,591	1,032
2024	12,955
2025	12,962
2026	12,883
2027	12,909
2028	13,051
Thereafter	702,602
Total undiscounted lease liabilities	767,362
Present value discount	(533,777)
Lease liabilities	$ 233,585
Weighted average discount rate	5.50%
Weighted average remaining term (in years)	49 years 4 months 24 days
Office Lease [Member]
Operating Leased Assets [Line Items]
Total fixed operating lease expense	$ 4,103	4,162	4,309
Total variable lease expense	729	$ 611	$ 615
2024	3,082
2025	3,464
2026	3,331
2027	2,151
2028	1,305
Thereafter	312
Total undiscounted lease liabilities	13,645
Present value discount	(1,167)
Lease liabilities	$ 12,478
Weighted average discount rate	3.70%
Weighted average remaining term (in years)	4 years 1 month 6 days

Amortization of above and below market and tenant leases.

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Number of separate real estate development properties located on land subject to ground leases.

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