Summary of Significant Accounting Policies (Impacts of the ASC 842 and ASC 450 Reserves) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
ASC 842 reserve, rental revenue	$ (234)	$ 1,031
Total impact	610	453
Collectibility of receivables
Financing Receivable, Allowance for Credit Loss [Line Items]
ASC 450 reserve, provision for (recovery of) doubtful accounts	$ 844	$ (578)

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration