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Fair Value of Financial Instruments - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2025
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value option elected aggregate carrying amount, asset		$ 46,000
Securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value option elected aggregate carrying amount, asset	$ 25,000
Residential Consumer Loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value option elected aggregate carrying amount, asset	3,850,000	9,160,000
Total Residential Investor Loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value option elected aggregate carrying amount, asset	487,000	1,380,000
Originations		1,419,506
HEI
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Originations	$ 3,000	$ 8,986

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