Fair Value - Fair Value Option Maturities, Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Fair value
Total fair value	$ 7,490,473	$ 8,217,468
Recurring basis
Fair value
Total fair value	7,490,473	8,217,468
Mortgage loans held for sale | Recurring basis
Fair value
Current through 89 days delinquent	7,458,146	8,187,561
Not in foreclosure	20,841	24,663
In foreclosure	11,486	5,244
Total fair value	7,490,473	8,217,468
Principal amount due upon maturity
Current through 89 days delinquent	7,260,164	8,089,532
Not in foreclosure	22,519	27,901
In foreclosure	20,408	11,481
Total principal amount due upon maturity	7,303,091	8,128,914
Difference
Current through 89 days delinquent	197,982	98,029
Not in foreclosure	(1,678)	(3,238)
In foreclosure	(8,922)	(6,237)
Total difference	$ 187,382	$ 88,554