Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenues	$ 186,637	$ 179,915	$ 376,187	$ 373,813
Rental property revenues
Disaggregation of Revenue [Line Items]
Revenues	181,766	175,099	366,573	364,228
Variable rental revenue	48,200	44,200	96,000	98,300
Fees and other
Disaggregation of Revenue [Line Items]
Revenues	$ 4,900	$ 4,800	$ 9,600	$ 9,600