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Investments in Loans and Financing Receivables - Schedule of Loans Receivable and Investments (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Allowance | $ (111.5) | $ (4.9)
Loans Receivable |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Amortized Cost | 840.9 | 207.8
Allowance | (12.3) | (2.5)
Carrying Amount | 828.6 | 205.3
Senior Secured Notes Receivable | Loans Receivable |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Amortized Cost | 797.2 | 174.3
Allowance | (11.4) | (2.5)
Carrying Amount | 785.8 | 171.8
Mortgage Loan | Loans Receivable |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Amortized Cost | 33.5 | 33.5
Allowance | 0.0 | 0.0
Carrying Amount | 33.5 | 33.5
Accrued interest | 13.8 | $ 3.4
Unsecured Loan | Loans Receivable |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Amortized Cost | 10.2 |
Allowance | (0.9) |
Carrying Amount | $ 9.3 |

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- Definition Amount, after allowance for credit loss, of accrued interest on financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3A -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3A + Details
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