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Borrowings (Additional Information) (Details) - USD ($) | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Apr. 30, 2006 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2006 | Jan. 31, 2024 | May 31, 2023 | Dec. 31, 2008
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Federal Home Loan Bank Advances |  | $ 149,950,000 | $ 68,725,000 |  |  |  |  |
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged |  | 1,900,000,000 | 1,800,000,000 |  |  |  |  |
Line of credit, maximum borrowing capacity |  | 50,000,000 |  |  |  |  |  |
Securities Sold under Agreements to Repurchase |  | 200,657,000 | 196,451,000 |  |  |  |  |
Interest on subordinated debentures |  | 2,150,000 | 2,140,000 | $ 2,523,000 |  |  |  |
Long-term Line of Credit |  | 0 |  |  |  |  |  |
Subordinated Debt |  | 44,331,000 | 44,331,000 |  |  |  |  |
Federal Home Loan Bank Advances [Member] |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Line of credit, maximum borrowing capacity |  | 9,900,000 | 9,900,000 |  |  |  |  |
Securities Sold under Agreements to Repurchase |  | 125,000,000 |  |  |  |  |  |
Long-term Line of Credit |  | 0 |  |  |  |  |  |
Federal Home Loan Bank Advances [Member] | Asset Pledged as Collateral | Securities Investment |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Financial Instruments, Owned, at Fair Value |  | 4,300,000 | $ 22,000 |  |  |  |  |
PNC [Member] |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Line of credit, maximum borrowing capacity |  | 35,000,000 |  |  |  |  |  |
Long-term Line of Credit |  | 0 |  |  |  |  |  |
Federal Reserve Bank Advances [Member] |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Line of credit, maximum borrowing capacity |  | 39,400,000 |  |  |  |  |  |
Long-term Line of Credit |  | 0 |  |  |  |  |  |
Federal Reserve Bank Advances [Member] | Securities Investment |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Financial Instruments, Owned, at Fair Value |  | $ 47,500,000 |  |  |  |  |  |
Junior Subordinated Debt |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Percentage of trust preferred securities included in Tier I Capital ratio |  | 8.00% |  |  |  |  |  |
Value Of Trust Preferred Securities Included In Tier One Capital |  | $ 43,000,000 |  |  |  |  |  |
Subordinated Debt |  | 43,000,000 |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  | $ 43,000,000
Bank term funding program | Asset Pledged as Collateral | Securities Investment |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Financial Instruments, Owned, at Fair Value |  | $ 160,900,000 |  |  |  |  |  |
Bank term funding program | Short-term Debt |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.70% |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 135,000,000 |  |  |  |  | $ 135,000,000 |
Bank term funding program | Short-term Debt | Subsequent Event [Member] |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 4.76% |  |
Debt Instrument, Face Amount |  |  |  |  |  | $ 225,000,000 |  |
Interest rate swaps | Federal Home Loan Bank Advances [Member] |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Securities Sold under Agreements to Repurchase |  | $ 50,000,000 |  |  |  |  |  |
Subsidiary One [Member] | Junior Subordinated Debt |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 6.99% | 5.07% |  |  |  |  |
Value of outstanding common shares of subsidiary owned by company | $ 1,100,000 |  |  |  |  |  |  |
Proceeds from issuance of trust preferred securities | $ 36,100,000 |  |  |  |  |  |  |
Debt interest rate, additional rate over three month LIBOR | 1.40% |  |  |  |  |  |  |
Long-term borrowings |  | $ 36,083,000 | $ 36,083,000 |  |  |  |  |
Subsidiary One [Member] | Junior Subordinated Debt | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Debt interest rate, additional rate over three month LIBOR |  |  |  |  | 0.26161% |  |  |
Subsidiary Two [Member] | Junior Subordinated Debt |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 7.08% | 5.50% |  |  |  |  |
Value of outstanding common shares of subsidiary owned by company |  |  |  |  | $ 248,000 |  |  |
Trust preferred securities assumed in acquisition |  |  |  |  |  |  |  | $ 8,000,000
Aggregate amount of junior subordinated debt issued to subsidiary by acquired company, prior to acquisition |  |  |  |  | $ 8,200,000 |  |  |
Debt Instrument, Term |  |  |  |  | 30 years |  |  |
Long-term borrowings |  | $ 8,248,000 | $ 8,248,000 |  |  |  |  |
Subsidiary Two [Member] | Junior Subordinated Debt | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Debt interest rate, additional rate over three month LIBOR |  |  |  |  | 0.26161% |  |  |
Subsidiary Two [Member] | Junior Subordinated Debt | London Interbank Offered Rate (LIBOR),1 |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |
Debt interest rate, additional rate over three month LIBOR |  |  |  |  | 1.42% |  |  |

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- Definition The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481961/940-320-45-2 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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