Summary of Significant Accounting Policies (Impacts of the ASC 842 and ASC 450 Reserves) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Total impact	$ (2,515)	$ (1,190)	$ (1,905)	$ (737)
Collectibility of receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
ASC 842 reserve, rental revenue	(3,803)	330	(4,037)	1,361
ASC 450 reserve, provision for (recovery of) doubtful accounts	$ 1,288	$ (1,520)	$ 2,132	$ (2,098)