Derivative And Hedging Activities - Summary of Fair Values of Derivative Instruments in the Company's Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Assets, Fair value	$ 66,421	$ 52,773
Derivative Liabilities, Fair value	59,305	50,827
Derivatives Designated as Hedging Instruments
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Assets, Fair value	7,128	1,966
Derivatives Designated as Hedging Instruments | Interest Rate Contracts | Cash Flow Hedging
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Assets, Notional amount	250,000	250,000
Derivatives Designated as Hedging Instruments | Interest Rate Contracts | Fair Value Hedging
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Assets, Notional amount	500,000
Derivatives Designated as Hedging Instruments | Interest Rate Contracts | Other Assets | Cash Flow Hedging
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Assets, Fair value	799	1,966
Derivatives Designated as Hedging Instruments | Interest Rate Contracts | Other Assets | Fair Value Hedging
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Assets, Fair value	6,329
Derivatives Not Designated as Hedging Instruments
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Assets, Fair value	59,293	50,807
Derivative Liabilities, Fair value	59,305	50,827
Derivatives Not Designated as Hedging Instruments | Loan Related Derivative Contracts | Interest Rate Contracts
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Assets, Notional amount	492,412
Derivative Liabilities, Notional Amount	492,412	499,619
Derivatives Not Designated as Hedging Instruments | Loan Related Derivative Contracts | Interest Rate Contracts | Other Assets
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Assets, Fair value	59,287
Derivatives Not Designated as Hedging Instruments | Loan Related Derivative Contracts | Interest Rate Contracts | Other Liabilities
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Liabilities, Fair value	59,287	50,784
Derivatives Not Designated as Hedging Instruments | Loan Related Derivative Contracts | Interest Rate Swaps with Clients
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Assets, Notional amount		499,619
Derivatives Not Designated as Hedging Instruments | Loan Related Derivative Contracts | Interest Rate Swaps with Clients | Other Assets
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Assets, Fair value		50,784
Derivatives Not Designated as Hedging Instruments | Loan Related Derivative Contracts | Risk Participation Agreements Out to Counterparties
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Assets, Notional amount	51,681	46,604
Derivatives Not Designated as Hedging Instruments | Loan Related Derivative Contracts | Risk Participation Agreements Out to Counterparties | Other Assets
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Assets, Fair value	6	23
Derivatives Not Designated as Hedging Instruments | Loan Related Derivative Contracts | Risk Participation Agreements with Counterparties
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Liabilities, Notional Amount	83,832	71,046
Derivatives Not Designated as Hedging Instruments | Loan Related Derivative Contracts | Risk Participation Agreements with Counterparties | Other Liabilities
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative Liabilities, Fair value	$ 18	$ 43