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Fair Value of Financial Instruments - Carrying Value and Estimated Fair Value of Company's Financial Instruments (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
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Carrying Value |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Cash and cash equivalents | $ 161,190 | $ 225,438
Carrying Value | Level III |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Secured debt arrangements, net | (5,596,967) | (5,538,476)
Debt related to real estate owned, held for investment, net | (161,878) | (161,586)
Carrying Value | Level III | Secured Debt |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Term loans, net | (757,912) | (759,150)
Carrying Value | Level III | Senior Notes |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Term loans, net | (495,835) | (495,637)
Carrying Value | Level III | Commercial Mortgage Portfolio Segment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Commercial mortgage loans, net | 7,846,460 | 7,925,359
Carrying Value | Level III | Subordinate Mortgage Portfolio Segment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Commercial mortgage loan, held for sale | 303,965 | 432,734
Estimate of Fair Value Measurement |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Cash and cash equivalents | 161,190 | 225,438
Estimate of Fair Value Measurement | Level III |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Secured debt arrangements, net | (5,596,967) | (5,538,476)
Debt related to real estate owned, held for investment, net | (161,878) | (161,586)
Estimate of Fair Value Measurement | Level III | Secured Debt |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Term loans, net | (761,099) | (754,197)
Estimate of Fair Value Measurement | Level III | Senior Notes |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Term loans, net | (418,125) | (418,750)
Estimate of Fair Value Measurement | Level III | Commercial Mortgage Portfolio Segment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Commercial mortgage loans, net | 7,722,188 | 7,813,304
Estimate of Fair Value Measurement | Level III | Subordinate Mortgage Portfolio Segment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Commercial mortgage loan, held for sale | $ 303,909 | $ 432,458

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- Definition Debt Related To Real Estate Owned, Held For Investment, Net, Fair Value Disclosure + References No definition available. + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time. + References No definition available. + Details
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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Publisher FASB -URI https://asc.fasb.org//310-10/tableOfContent + Details
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