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Loans - Schedule of Loans Purchased (Details) - Residential Portfolio Segment - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	$ 2,909,307	$ 1,712,468
Fair Value	3,033,739	1,745,173
Agency-Eligible Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	1,830,446	1,407,588
Fair Value	1,879,658	1,432,492
Home Equity Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	1,078,861	281,374
Fair Value	1,154,081	288,885
Non-Agency Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Principal Balance	0	23,506
Fair Value	$ 0	$ 23,796

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Principal Amount Outstanding Of Loans Held-In-Portfolio Purchased During Period

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