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Net Investment in Sales-type Leases, Ground Lease Receivables and Loans Receivable, net - Related Party (Interest Income) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Lessor, Lease, Description [Line Items] |  |  |
Interest income from sales-type leases | [1] | $ 57,062 | $ 43,031
Cash |  |  |
Lessor, Lease, Description [Line Items] |  |  |
Interest income from sales-type leases |  | 36,686 | 27,183
Non-cash |  |  |
Lessor, Lease, Description [Line Items] |  |  |
Interest income from sales-type leases |  | 20,376 | 15,848
Net Investment in Sales-type Leases |  |  |
Lessor, Lease, Description [Line Items] |  |  |
Interest income from sales-type leases |  | 39,104 | 31,530
Net Investment in Sales-type Leases | Cash |  |  |
Lessor, Lease, Description [Line Items] |  |  |
Interest income from sales-type leases |  | 24,882 | 19,825
Net Investment in Sales-type Leases | Non-cash |  |  |
Lessor, Lease, Description [Line Items] |  |  |
Interest income from sales-type leases |  | 14,222 | 11,705
Ground Lease Receivables |  |  |
Lessor, Lease, Description [Line Items] |  |  |
Interest income from sales-type leases |  | 17,958 | 11,501
Ground Lease Receivables | Cash |  |  |
Lessor, Lease, Description [Line Items] |  |  |
Interest income from sales-type leases |  | 11,804 | 7,358
Ground Lease Receivables | Non-cash |  |  |
Lessor, Lease, Description [Line Items] |  |  |
Interest income from sales-type leases |  | $ 6,154 | $ 4,143
[1] | For the three months ended March 31, 2022, the Company recorded $2.1 million of “Interest income from sales-type leases” in its consolidated statements of operations from Ground Leases with iStar Inc. (“iStar”).

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- Definition Amount of interest income from net investment in sales-type lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 5 -Subparagraph (a)(2) -URI https://asc.fasb.org/extlink&oid=124258985&loc=SL77919372-209981 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 6A -URI https://asc.fasb.org/extlink&oid=126900988&loc=SL77927221-108306 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 25 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123408481&loc=SL77919101-209958 + Details
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