Segment Information Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020
Segment Reporting Information [Line Items]
Write-off for accrued rent	$ 4,100	$ 41,500
Write-off for accounts receivable	3,400	22,300
Parking and Other [Member]
Segment Reporting Information [Line Items]
Increase (decrease) in parking and other revenue primarily related to COVID-19	$ 9,300	$ 22,000