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Borrowings (Schedule of Advances to the Federal Home Loan Bank) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Maturity Schedule Of Federal Home Loan Bank Advances [Line Items] |  |
FHLB advances, carrying value of residential real estate and commercial loans pledged as collateral | $ 1,900,000 | $ 1,800,000
Federal Home Loan Bank Advances | $ 149,950 | $ 68,725
Short-term Debt |  |
Maturity Schedule Of Federal Home Loan Bank Advances [Line Items] |  |
Debt, Weighted Average Interest Rate | 3.66% | 1.98%
FHLBB Borrowing Maturing January 2023 | Long-term Debt [Member] |  |
Maturity Schedule Of Federal Home Loan Bank Advances [Line Items] |  |
Debt, Weighted Average Interest Rate | 5.54% | 4.38%
Federal Home Loan Bank Advances | $ 99,950 | $ 18,725
FHLBB Borrowing Maturing March 2023 | Long-term Debt [Member] |  |
Maturity Schedule Of Federal Home Loan Bank Advances [Line Items] |  |
Debt, Weighted Average Interest Rate | 5.51% | 4.93%
Federal Home Loan Bank Advances | $ 50,000 | $ 50,000

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- Definition Amount of the collateral pledged in support of federal home loan bank advances outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 470 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480876/942-470-45-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480848/942-470-50-3 + Details
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