Derivative Financial Instruments - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023 USD ($) Contract	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) Contract	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) Contract
Designated as Hedging Instrument [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total excluded components of earnings recognition	$ 13		$ 22
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total notional amount	975,000		975,000		$ 825,000
Interest and fees on LHFS and LHFI reclassified as a reduction over twelve months			17,700
Designated as Hedging Instrument [Member] | Interest Rate Floor [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total notional amount	$ 975,000		$ 975,000		$ 825,000
Derivatives not Designated as Hedging Instruments [Member] | Beneficiary [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number of risk participation agreements | Contract	5		5		5
Aggregate notional amount of credit risk participation agreements	$ 49,500		$ 49,500		$ 50,200
Derivatives not Designated as Hedging Instruments [Member] | Guarantor [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number of risk participation agreements | Contract	31		31		29
Aggregate notional amount of credit risk participation agreements	$ 246,300		$ 246,300		$ 235,800
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Swap [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total notional amount	1,420,000		1,420,000		1,391,000
Termination value of derivatives	0		0		0
Collateral Posted	1,200		1,200		740
Derivatives not Designated as Hedging Instruments [Member] | Forward Contracts [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet obligations	172,500		172,500		97,000
Valuation adjustment			1,000		168
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Lock Commitments [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet obligations	122,700		122,700		68,400
Valuation adjustment			471		157
Derivatives not Designated as Hedging Instruments [Member] | Mortgage Servicing Rights Hedge [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total notional amount	277,500		277,500		$ 277,000
Net (negative) positive ineffectiveness on MSR fair value	$ (1,300)	$ (632)	$ (3,100)	$ 374