Significant Accounting Policies - Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue from External Customer [Line Items]
Deferred income	$ 128,636	$ 74,515
Revenues	762,290	755,073	$ 740,340
Tenant Funded Improvements
Revenue from External Customer [Line Items]
Deferred income	100,100	30,200
Tenants Expenses
Revenue from External Customer [Line Items]
Revenues	$ 160,700	$ 155,500	$ 142,500