Segment Information Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Write-off for accrued rent	$ 600	$ 1,200
Write-off for accounts receivable		$ 300
Write off of accounts receivable	(200)
Parking and Other [Member]
Segment Reporting Information [Line Items]
Increase (decrease) in parking and other revenue primarily related to COVID-19	$ (7,600)