Fair Value - Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financial assets:
Loans and investments, net	$ 12,001,544	$ 12,377,806
Loans held-for-sale, net	324,743	552,325
Securities held-to-maturity, net	155,413	155,279
Financial liabilities:
Credit and repurchase facilities	2,913,483	3,237,827
Securitized debt	6,691,958	6,935,010
Senior unsecured notes	1,335,013	1,333,968
Convertible senior unsecured notes	283,776	283,118
Junior subordinated notes	144,096	143,896
Level 1
Financial assets:
Loans and investments, net	0
Loans held-for-sale, net	0
Capitalized mortgage servicing rights, net	0
Securities held-to-maturity, net	0
Financial liabilities:
Credit and repurchase facilities	0
Securitized debt	0
Senior unsecured notes	1,216,241
Convertible senior unsecured notes	0
Junior subordinated notes	0
Level 2
Financial assets:
Loans and investments, net	0
Loans held-for-sale, net	322,831
Capitalized mortgage servicing rights, net	0
Securities held-to-maturity, net	0
Financial liabilities:
Credit and repurchase facilities	311,963
Securitized debt	0
Senior unsecured notes	0
Convertible senior unsecured notes	287,500
Junior subordinated notes	0
Level 3
Financial assets:
Loans and investments, net	12,158,245
Loans held-for-sale, net	4,656
Capitalized mortgage servicing rights, net	518,391
Securities held-to-maturity, net	133,800
Financial liabilities:
Credit and repurchase facilities	2,596,715
Securitized debt	6,620,181
Senior unsecured notes	0
Convertible senior unsecured notes	0
Junior subordinated notes	107,096
Carrying Value
Financial assets:
Loans and investments, net	12,001,544	12,377,806
Loans held-for-sale, net	322,875	551,707
Capitalized mortgage servicing rights, net	385,520
Securities held-to-maturity, net	155,413	155,279
Financial liabilities:
Credit and repurchase facilities	2,913,483	3,237,827
Securitized debt	6,691,958	6,935,010
Senior unsecured notes	1,335,013	1,333,968
Convertible senior unsecured notes	283,776	283,118
Junior subordinated notes	144,096	143,896
Fair Value
Financial assets:
Loans and investments, net	12,158,245	12,452,563
Loans held-for-sale, net	327,487	566,451
Capitalized mortgage servicing rights, net	518,391
Securities held-to-maturity, net	133,800	129,390
Financial liabilities:
Credit and repurchase facilities	2,908,678	3,228,324
Securitized debt	6,620,181	6,864,557
Senior unsecured notes	1,216,241	1,214,331
Convertible senior unsecured notes	287,500	301,156
Junior subordinated notes	$ 107,096	$ 106,444

Represents capitalized mortgage servicing rights.

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Carrying value as of the balance sheet date, of securities sold under agreements to repurchase and the carrying value, as of the balance sheet date, of the outstanding borrowings under warehouse and revolving lines of credit.

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No definition available.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer.

+ References

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Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security.

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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

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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