Quarterly report pursuant to Section 13 or 15(d)

Credit Losses, Financial Assets and Other Instruments (Credit Risk Classification) (Details)

v3.21.2
Credit Losses, Financial Assets and Other Instruments (Credit Risk Classification) (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Investing Receivables    
Financing Receivable, Credit Quality Indicator [Line Items]    
2016 and Earlier $ 68,773  
2017 1,043  
2018 0  
2019 6,040  
2020 1,057  
2021 449  
Total 77,362 $ 71,605
Investing Receivables | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
2016 and Earlier 68,773  
2017 1,043  
2018 0  
2019 0  
2020 1,057  
2021 449  
Total 71,322  
Investing Receivables | Non-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
2016 and Earlier 0  
2017 0  
2018 0  
2019 6,040  
2020 0  
2021 0  
Total 6,040  
Tenant Notes Receivables    
Financing Receivable, Credit Quality Indicator [Line Items]    
2016 and Earlier 221  
2017 0  
2018 1,090  
2019 216  
2020 2,060  
2021 0  
Total 3,587  
Tenant Notes Receivables | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
2016 and Earlier 0  
2017 0  
2018 949  
2019 69  
2020 297  
2021 0  
Total 1,315  
Tenant Notes Receivables | Non-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
2016 and Earlier 221  
2017 0  
2018 141  
2019 147  
2020 1,763  
2021 0  
Total 2,272  
Sales-Type Lease Receivables | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
2016 and Earlier 0  
2017 0  
2018 0  
2019 0  
2020 6,300  
2021 0  
Total $ 6,300