Derivative Financial Instruments - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Notional amount	$ 12,215,873,000	$ 2,628,677,000
Market Valuation (Losses) Gains on Derivatives	(20,123,000)	2,297,000
Accumulated other comprehensive loss, interest rate agreements	64,000,000	68,000,000
Interest Expense
Derivative [Line Items]
Expected amortization of realized losses related to terminated cash flow hedges	4,000,000
LPCs, IRLCs, and FSCs
Derivative [Line Items]
Changes in fair value of assets	10,000,000	23,000,000	$ (55,000,000)
Interest Rate Contract
Derivative [Line Items]
Notional amount	8,250,000,000	50,000,000
Interest Rate Contract | Cash Flow Hedging
Derivative [Line Items]
Realized net losses from accumulated comprehensive loss into interest expense	4,000,000	4,000,000
TBAs
Derivative [Line Items]
Notional amount	1,350,000,000	1,790,000,000
Interest rate futures
Derivative [Line Items]
Notional amount	1,540,000,000	142,000,000
Risk Management Derivatives
Derivative [Line Items]
Market Valuation (Losses) Gains on Derivatives	$ (29,694,000)	$ (20,303,000)	$ 184,000,000