Deposits and Borrowed Funds (Maturity Of Borrowed Funds and Certificates of Deposit) (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Deposits and Borrowed Funds [Abstract]
2024	$ 1,019,672
2025	679,672
2026	604,672
2027	427,172
2028	151,640
Thereafter	0
Borrowings Amount	2,882,828
Certificates of Deposit Due in 2024	1,490,023
Certificates of Deposit Due in 2025	681,402
Certificates of Deposit Due in 2026	361,295
Certificates of Deposit Due in 2027	138,297
Certificates of Deposit Due in 2028	58,973
Certificates of Deposit Due Thereafter	202
Certificates of Deposit Amount	$ 2,730,192

Deposits and Borrowed Funds [Abstract]

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Face (par) amount of debt instrument at time of issuance.

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Amount of interest-bearing domestic certificate of deposit liabilities.

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of time deposit maturing after fifth fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of time deposit maturing in next fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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