Significant Accounting Policies - Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue from External Customer [Line Items]
Deferred income	$ 181,744	$ 128,636
Revenues	802,874	762,290	$ 755,073
Tenant Funded Improvements
Revenue from External Customer [Line Items]
Deferred income	141,000	100,100
Revenues	20,000	11,200	5,400
Tenants Expenses
Revenue from External Customer [Line Items]
Revenues	$ 163,200	$ 160,700	$ 155,500