Fair Value Measurements - Schedule of Quantitative Information About Fair Value Measurements of Level 3 Financial Instruments (Details) - Level 3	Jun. 30, 2026 USD ($) year	Dec. 31, 2025 USD ($) year
Minimum \| Model pricing
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage loans held for sale	0.679	0.717
Minimum \| Pull-through probability
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
IRLCs	0.000	0.000
Minimum \| Value of servicing (reflected as a % of pull-through adjusted UPB)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
IRLCs	0.000	0.000
Minimum \| OAS
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	0.073	0.073
Excess-spread financing	0.070	0.070
Minimum \| Prepayment speeds
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	0.094	0.096
Excess-spread financing	0.074	0.066
Minimum \| Cost to service per loan
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	42	42
Minimum \| Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Non-mortgage loans held for sale	0.070	0.070
Assets and Liabilities of the consolidated CFE	0.070	0.070
Minimum \| Annual default rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Non-mortgage loans held for sale	0.059	0.040
Assets and Liabilities of the consolidated CFE	0.059	0.069
Maximum \| Model pricing
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage loans held for sale	1.021	1.040
Maximum \| Pull-through probability
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
IRLCs	1.000	1.000
Maximum \| Value of servicing (reflected as a % of pull-through adjusted UPB)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
IRLCs	0.041	0.029
Maximum \| OAS
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	0.113	0.113
Excess-spread financing	0.123	0.123
Maximum \| Prepayment speeds
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	0.121	0.134
Excess-spread financing	0.082	0.084
Maximum \| Cost to service per loan
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	113	113
Maximum \| Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Non-mortgage loans held for sale	0.093	0.093
Assets and Liabilities of the consolidated CFE	0.070	0.070
Maximum \| Annual default rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Non-mortgage loans held for sale	0.630	0.293
Assets and Liabilities of the consolidated CFE	0.457	0.259
Weighted Average \| Model pricing
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage loans held for sale	0.792	0.831
Weighted Average \| Pull-through probability
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
IRLCs	0.718	0.717
Weighted Average \| Value of servicing (reflected as a % of pull-through adjusted UPB)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
IRLCs	0.014	0.013
Weighted Average \| OAS
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	0.084	0.083
Excess-spread financing	0.088	0.088
Weighted Average \| Prepayment speeds
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	0.102	0.107
Excess-spread financing	0.078	0.077
Weighted Average \| Cost to service per loan
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs \| $	61	59
Weighted Average \| Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Non-mortgage loans held for sale	0.073	0.070
Assets and Liabilities of the consolidated CFE	0.070	0.070
Weighted Average \| Annual default rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Non-mortgage loans held for sale	0.079	0.090
Assets and Liabilities of the consolidated CFE	0.079	0.089
Weighted Average \| Average life
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Excess-spread financing \| year	6,400,000	6,500,000