Fair Value - Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Financial assets:
Loans and investments, net	$ 11,333,023	$ 11,033,997
Loans held-for-sale, net	361,138	438,233
Securities held-to-maturity, net	156,920	157,154
Financial liabilities:
Credit and repurchase facilities	4,721,622	3,559,490
Securitized debt	3,510,865	4,622,489
Senior unsecured notes	1,238,174	1,236,147
Convertible senior unsecured notes	287,258	285,853
Junior subordinated notes	145,085	144,686
Mortgage notes payable — real estate owned	184,618	74,897
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	1,177,250
Convertible senior unsecured notes	0
Junior subordinated notes	0
Mortgage notes payable — real estate owned	0
Level 2
Financial assets:
Loans and investments, net	0
Loans held-for-sale, net	366,062
Capitalized mortgage servicing rights, net	0
Securities held-to-maturity, net	0
Financial liabilities:
Credit and repurchase facilities	329,484
Securitized debt	0
Senior unsecured notes	0
Convertible senior unsecured notes	286,925
Junior subordinated notes	0
Mortgage notes payable — real estate owned	0
Level 3
Financial assets:
Loans and investments, net	11,381,419
Loans held-for-sale, net	3,480
Capitalized mortgage servicing rights, net	484,774
Securities held-to-maturity, net	152,805
Financial liabilities:
Credit and repurchase facilities	4,382,179
Securitized debt	3,520,999
Senior unsecured notes	0
Convertible senior unsecured notes	0
Junior subordinated notes	110,541
Mortgage notes payable — real estate owned	183,686
Carrying Value
Financial assets:
Loans and investments, net	11,333,023	11,033,997
Loans held-for-sale, net	361,447	435,759
Capitalized mortgage servicing rights, net	348,326
Securities held-to-maturity, net	156,920	157,154
Financial liabilities:
Credit and repurchase facilities	4,721,622	3,559,490
Securitized debt	3,510,865	4,622,489
Senior unsecured notes	1,238,174	1,236,147
Convertible senior unsecured notes	287,258	285,853
Junior subordinated notes	145,085	144,686
Mortgage notes payable — real estate owned	184,618	74,897
Fair Value
Financial assets:
Loans and investments, net	11,381,419	11,122,205
Loans held-for-sale, net	369,542	449,339
Capitalized mortgage servicing rights, net	484,774
Securities held-to-maturity, net	152,805	144,508
Financial liabilities:
Credit and repurchase facilities	4,711,663	3,592,120
Securitized debt	3,520,999	4,616,409
Senior unsecured notes	1,177,250	1,160,154
Convertible senior unsecured notes	286,925	287,500
Junior subordinated notes	110,541	109,099
Mortgage notes payable — real estate owned	$ 183,686	$ 74,495

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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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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.

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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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