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Commercial Mortgage Loans, Subordinate Loans and Other Lending Assets, Net - Schedule of Loan Portfolio (Details) - USD ($)
$ in Thousands

Sep. 30, 2024

Dec. 31, 2023

Financing Receivable, Allowance for Credit Loss [Line Items]

Carrying value, net

$ 7,830,611

$ 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]

7,456,389

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]

$ 374,222

$ 432,734

[1]	Includes carrying value of $7,456,389 and $7,691,141 pledged as collateral under secured debt arrangements in 2024 and 2023, respectively.
[2]	Net of $376,692 and $219,482 CECL Allowances comprised of $342,500 and $193,000 Specific CECL Allowance and $34,192 and $26,482 General CECL Allowance in 2024 and 2023, respectively.
[3]	Includes carrying value of $232,817 as collateral under secured debt arrangements in 2023.

X

- Definition

Mortgage Loans on Real Estate, Commercial and Consumer And Financing Receivable, Net

+ References

No definition available.

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- 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
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph c
-Publisher SEC

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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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
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-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
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-Publisher FASB
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