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Securities (Schedule of Securities with Unrealized Losses) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months Fair Value | $ 13,604 | $ 1,018,313
Less than 12 Months Unrealized Loss | (176) | (177,161)
12 Months or More Fair Value | 1,494,312 | 603,633
12 Months or More Unrealized Loss | (275,589) | (156,691)
Total Fair Value | 1,507,916 | 1,621,946
Total Unrealized Loss | (275,765) | (333,852)
Obligations of State and Political Subdivisions |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months Fair Value | 13,469 | 579,267
Less than 12 Months Unrealized Loss | (175) | (117,423)
12 Months or More Fair Value | 668,223 | 122,992
12 Months or More Unrealized Loss | (122,199) | (44,591)
Total Fair Value | 681,692 | 702,259
Total Unrealized Loss | (122,374) | (162,014)
MBS/CMO |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months Fair Value | 135 | 240,344
Less than 12 Months Unrealized Loss | (1) | (20,920)
12 Months or More Fair Value | 643,172 | 474,327
12 Months or More Unrealized Loss | (116,012) | (110,918)
Total Fair Value | 643,307 | 714,671
Total Unrealized Loss | (116,013) | (131,838)
US Gov’t Sponsored Entities & Agencies |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months Fair Value | 0 | 198,702
Less than 12 Months Unrealized Loss | 0 | (38,818)
12 Months or More Fair Value | 182,917 | 6,314
12 Months or More Unrealized Loss | (37,378) | (1,182)
Total Fair Value | 182,917 | 205,016
Total Unrealized Loss | $ (37,378) | $ (40,000)

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