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Net Investment in Sales-type Leases and Ground Lease Receivables - Interest Income (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Lessor, Lease, Description [Line Items] |  |  |  |
Interest income from sales-type leases | [1] | $ 235,503 | $ 202,258 | $ 118,824
Cash |  |  |  |
Lessor, Lease, Description [Line Items] |  |  |  |
Interest income from sales-type leases |  | 151,723 | 128,267 | 75,016
Non-cash |  |  |  |
Lessor, Lease, Description [Line Items] |  |  |  |
Interest income from sales-type leases |  | 83,780 | 73,991 | 43,808
Net Investment in Sales-type Leases |  |  |  |
Lessor, Lease, Description [Line Items] |  |  |  |
Interest income from sales-type leases |  | 159,219 | 143,591 | 82,990
Net Investment in Sales-type Leases | Cash |  |  |  |
Lessor, Lease, Description [Line Items] |  |  |  |
Interest income from sales-type leases |  | 101,306 | 90,487 | 52,091
Net Investment in Sales-type Leases | Non-cash |  |  |  |
Lessor, Lease, Description [Line Items] |  |  |  |
Interest income from sales-type leases |  | 57,913 | 53,104 | 30,899
Ground Lease Receivables |  |  |  |
Lessor, Lease, Description [Line Items] |  |  |  |
Interest income from sales-type leases |  | 76,284 | 58,667 | 35,834
Ground Lease Receivables | Cash |  |  |  |
Lessor, Lease, Description [Line Items] |  |  |  |
Interest income from sales-type leases |  | 50,417 | 37,780 | 22,925
Ground Lease Receivables | Non-cash |  |  |  |
Lessor, Lease, Description [Line Items] |  |  |  |
Interest income from sales-type leases |  | $ 25,867 | $ 20,887 | $ 12,909
[1] | For the years ended December 31, 2022 and 2021, the Company recorded $2.1 million and $8.4 million, respectively, of “Interest income from sales-type leases” in its consolidated statements of operations from Ground Leases with iStar Inc. (“iStar”).

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