Investment Securities (Investment Securities Pledged To Secure Borrowings And Public Deposits) (Details) $ in Thousands	Sep. 30, 2022 USD ($)
Investments, Debt and Equity Securities [Abstract]
To state and local government to secure public deposits, amortized cost	$ 492,344
To secure repurchased agreements, amortized cost	479,063
Other securities pledged, amortized cost	243,069
Total pledged securities, amortized cost	1,214,476
To state and local governments to secure public deposits, fair value	433,917
To secure repurchase agreements, fair value	416,031
Other securities pledged, fair value	217,513
Total pledged securities, fair value	$ 1,067,461