Summary of Significant Accounting Policies (Impacts of the ASC 842 and ASC 450 Reserves) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Total impact	$ 381	$ (456)	$ (1,524)	$ (1,193)
Collectibility of receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
ASC 842 reserve, rental revenue	275	(610)	(3,762)	751
ASC 450 reserve, provision for (recovery of) doubtful accounts	$ 106	$ 154	$ 2,238	$ (1,944)