Assets and Liabilities Measured at Fair Value - Quantitative Information About Level 3 Fair Value Measurements for Fair Value on a Recurring Basis (Details) - Recurring - Level 3	Mar. 31, 2024	Dec. 31, 2023
SBA/USDA loan servicing rights | Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.036	0.084
SBA/USDA loan servicing rights | Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.250	0.250
SBA/USDA loan servicing rights | Discount rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.127	0.162
SBA/USDA loan servicing rights | Prepayment rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.020	0.035
SBA/USDA loan servicing rights | Prepayment rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.380	0.374
SBA/USDA loan servicing rights | Prepayment rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing rights for SBA/USDA loans, measurement input	0.193	0.185
Residential mortgage servicing rights | Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.100	0.100
Residential mortgage servicing rights | Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.125	0.150
Residential mortgage servicing rights | Discount rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.101	0.100
Residential mortgage servicing rights | Prepayment rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.065	0.065
Residential mortgage servicing rights | Prepayment rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.300	0.299
Residential mortgage servicing rights | Prepayment rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Residential mortgage servicing rights, measurement input	0.079	0.080
Corporate bonds | Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Corporate bonds, measurement input	0.066	0.061
Corporate bonds | Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Corporate bonds, measurement input	0.072	0.067
Corporate bonds | Discount rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Corporate bonds, measurement input	0.070	0.065
Derivative assets - mortgage | Pull through rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, measurement input	0.640	0.600
Derivative assets - mortgage | Pull through rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, measurement input	1	1
Derivative assets - mortgage | Pull through rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative assets, measurement input	0.905	0.905