Fair Value of Assets and Liabilities - Summary of the Significant Unobservable Inputs (Details) - Significant Other Unobservable Inputs (Level 3) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Discounted Cash Flow | Interest Rate Swap
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net	$ 8,155	$ (122,129)
Discounted Cash Flow | Weighted Average Constant Prepayment Rate (as a percent)
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Mortgage Servicing Rights, Fair Value Inputs	0.1013	0.0993
Discounted Cash Flow | Weighted Average Credit Factor (as a percent) | Interest Rate Swap
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Fair Value Inputs	0.0001	0.0001
Discounted Cash Flow | Mortgage Servicing Rights
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Mortgage Servicing Rights, at Fair Value	$ 27,108	$ 28,040
Discounted Cash Flow | Mortgage Servicing Rights | Weighted Average Constant Prepayment Rate (as a percent)
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Mortgage Servicing Rights, Fair Value Inputs	0.0381	0.0402
Pricing Model | Interest Rate Lock Commitments
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net	$ 113	$ 58
Pricing Model | Weighted Average Closing Ratio (as a percent) | Interest Rate Lock Commitments
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Fair Value Inputs	0.9459	0.9286
Minimum [Member] | Discounted Cash Flow | Weighted Average Constant Prepayment Rate (as a percent)
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Mortgage Servicing Rights, Fair Value Inputs	0.0773	0.087
Minimum [Member] | Discounted Cash Flow | Weighted Average Credit Factor (as a percent) | Interest Rate Swap
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Fair Value Inputs	0	0
Minimum [Member] | Discounted Cash Flow | Mortgage Servicing Rights
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities, Discount Rate	2.86%	2.81%
Minimum [Member] | Pricing Model | Weighted Average Closing Ratio (as a percent) | Interest Rate Lock Commitments
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Fair Value Inputs	0.835	0.841
Maximum | Discounted Cash Flow | Weighted Average Constant Prepayment Rate (as a percent)
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Mortgage Servicing Rights, Fair Value Inputs	0.1102	0.104
Maximum | Discounted Cash Flow | Weighted Average Credit Factor (as a percent) | Interest Rate Swap
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Fair Value Inputs	0.0804	0.0049
Maximum | Discounted Cash Flow | Mortgage Servicing Rights
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities, Discount Rate	18.44%	10.63%
Maximum | Pricing Model | Weighted Average Closing Ratio (as a percent) | Interest Rate Lock Commitments
Level3 Assets And Liabilities Fair Value And Fair Value Unobservable Inputs [Line Items]
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Fair Value Inputs	0.99	0.99