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Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Schedule of Loan Portfolio (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Carrying value, net |  | $ 8,293,902 | $ 8,358,093
Commercial Mortgage Portfolio Segment |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Mortgage loans on real estate, commercial and consumer, net | [1],[2] | 7,909,125 | 7,925,359
Subordinate Mortgage Portfolio Segment |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |
Mortgage loans on real estate, commercial and consumer, net | [2],[3] | $ 384,777 | $ 432,734
[1] | Includes $7,897,660 and $7,705,491 pledged as collateral under secured debt arrangements in 2024 and 2023, respectively.
[2] | Net of $377,819 and $219,482 CECL Allowances comprised of $342,500 and $193,000 Specific CECL Allowance and $35,319 and $26,482 General CECL Allowance in 2024 and 2023, respectively.
[3] | Includes $232,991 pledged as collateral under secured debt arrangements in 2023.

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- Definition The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 80 -Name Accounting Standards Codification -Section 55 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480078/944-80-55-14 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 80 -Name Accounting Standards Codification -Section 55 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480078/944-80-55-9 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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