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
Jun. 30, 2021
Dec. 31, 2020
Investing Receivables    
Financing Receivable, Credit Quality Indicator [Line Items]    
2016 and Earlier $ 67,112  
2017 1,019  
2018 0  
2019 6,040  
2020 1,028  
2021 6  
Total 75,205 $ 71,605
Investing Receivables | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
2016 and Earlier 67,112  
2017 1,019  
2018 0  
2019 0  
2020 1,028  
2021 6  
Total 69,165  
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 234  
2017 0  
2018 1,114  
2019 231  
2020 2,111  
2021 0  
Total 3,690  
Tenant Notes Receivables | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
2016 and Earlier 0  
2017 0  
2018 965  
2019 74  
2020 308  
2021 0  
Total 1,347  
Tenant Notes Receivables | Non-investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
2016 and Earlier 234  
2017 0  
2018 149  
2019 157  
2020 1,803  
2021 0  
Total 2,343  
Sales-Type Lease Receivables | Investment grade    
Financing Receivable, Credit Quality Indicator [Line Items]    
2016 and Earlier 0  
2017 0  
2018 0  
2019 0  
2020 6,405  
2021 0  
Total $ 6,405