Fair Value of Financial Instruments - Narrative (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2026 USD ($)
Securities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value option elected aggregate carrying amount, asset	$ 45,000
Residential Consumer Loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value option elected aggregate carrying amount, asset	6,580,000
Total Residential Investor Loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value option elected aggregate carrying amount, asset	438,000
Originations (3)	432,422
HEI
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Originations (3)	$ 2,612