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Net Investment in Sales-type Leases and Ground Lease Receivables - Ground Lease Receivable by Year of Origination (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Lessor, Lease, Description [Line Items] |  |
Current Year |  | $ 19,245
One Year Prior | $ 19,351 | 698,475
Two Years Prior | 732,955 | 274,085
Three Years Prior | 275,579 | 180,739
Four Years Prior | 181,567 | 450,123
Five Years Prior and Earlier | 452,303 |
Total | 1,661,755 | 1,622,667
Stabilized properties |  |
Lessor, Lease, Description [Line Items] |  |
Current Year |  | 19,106
One Year Prior | 19,209 | 152,966
Two Years Prior | 153,704 | 171,664
Three Years Prior | 198,044 | 180,739
Four Years Prior | 181,567 | 450,123
Five Years Prior and Earlier | 452,303 |
Total | 1,004,827 | 974,598
Development properties |  |
Lessor, Lease, Description [Line Items] |  |
Current Year |  | 139
One Year Prior | 142 | 545,509
Two Years Prior | 579,251 | 102,421
Three Years Prior | 77,535 |
Total | $ 656,928 | $ 648,069

X
- Definition Amount, before allowance for credit loss, of Ground Lease receivable. + References No definition available. + Details
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Balance Type: | debit
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X
- Definition Amount of gross ground lease receivables originated more than five years prior to current fiscal year. + References No definition available. + Details
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Namespace Prefix: | safe_
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X
- Definition Amount of gross ground lease receivables originated four years prior to current fiscal year. + References No definition available. + Details
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X
- Definition Amount of gross ground lease receivables originated three years prior to current fiscal year. + References No definition available. + Details
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X
- Definition Amount of gross ground lease receivables originated in current fiscal year. + References No definition available. + Details
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X
- Definition Amount of gross ground lease receivables originated two years prior to current fiscal year. + References No definition available. + Details
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X
- Definition Amount of gross ground lease receivables originated in fiscal year prior to current fiscal year. + References No definition available. + Details
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X
- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479773/842-30-50-3 + Details
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- Details
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- Details
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