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Securities (Schedule of Contractual Maturities of Securities) (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
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Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] |  |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | $ 1,998,347 | $ 1,353,964
Available for Sale, Fair Value |  |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 1,941,220 | 1,250,944
Held to Maturity, Fair Value |  |
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss | 1,357,617 | 1,434,956
Held to Maturity, Fair Value, Total | 1,260,752 | 1,291,801
Available for Sale Securities and Held to Maturity Securities Amortized Cost | 3,355,964 |
Debt Securities, Available-for-sale and Held-to-maturity | 3,201,972 |
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost | 381,839 |
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value | 375,310 |
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost | 1,310,274 |
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value | 1,257,941 |
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost | 353,908 |
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value | 334,764 |
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Ten Years, Amortized Cost | 1,309,943 |
Debt Securities, Available-for-sale and Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Ten Years, Fair Value | 1,233,957 |
U.S. government agency securities |  |
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] |  |
Available for Sale, Amortized Cost, Due in one year or less | 30,286 |
Available for Sale, Amortized Cost, Due after one year to five years | 198,603 |
Available for Sale, Amortized Cost, Due after five to ten years | 0 |
Available for Sale, Amortized Cost, Due after ten years | 0 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 228,889 | 229,452
Available for Sale, Fair Value |  |
Available for Sale, Fair Value, Due in one year or less | 29,471 |
Available for Sale, Fair Value, Due after one year to five years | 187,704 |
Available for Sale, Fair Value, Due after five to ten years | 0 |
Available for Sale, Fair Value, Due after ten years | 0 |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 217,175 | 209,660
Small Business Administration Pooled Securities [Member] |  |
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] |  |
Available for Sale, Amortized Cost, Due in one year or less | 0 |
Available for Sale, Amortized Cost, Due after one year to five years | 0 |
Available for Sale, Amortized Cost, Due after five to ten years | 11,386 |
Available for Sale, Amortized Cost, Due after ten years | 32,370 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 43,756 | 48,032
Available for Sale, Fair Value |  |
Available for Sale, Fair Value, Due in one year or less | 0 |
Available for Sale, Fair Value, Due after one year to five years | 0 |
Available for Sale, Fair Value, Due after five to ten years | 10,720 |
Available for Sale, Fair Value, Due after ten years | 27,857 |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 38,577 | 40,838
Held to Maturity, Amortized Cost |  |
Held to Maturity, Amortized Cost, Due in one year or less | 0 |
Held to Maturity, Amortized Cost, Due after one year to five years | 0 |
Held to Maturity, Amortized Cost, Due after five to ten years | 5,673 |
Held to Maturity, Amortized Cost, Due after ten years | 109,395 |
Held to Maturity, Fair Value |  |
Held to Maturity, Fair Value, Due in one year or less | 0 |
Held to Maturity, Fair Value, Due after one year to five years | 0 |
Held to Maturity, Fair Value, Due after five to ten years | 5,369 |
Held to Maturity, Fair Value, Due after ten years | 105,163 |
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss | 115,068 | 122,868
Held to Maturity, Fair Value, Total | 110,532 | 114,733
Debt Securities [Member] |  |
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] |  |
Available for Sale, Amortized Cost, Due in one year or less | 252,368 |
Available for Sale, Amortized Cost, Due after one year to five years | 798,533 |
Available for Sale, Amortized Cost, Due after five to ten years | 192,684 |
Available for Sale, Amortized Cost, Due after ten years | 754,762 |
Available for Sale, Fair Value |  |
Available for Sale, Fair Value, Due in one year or less | 246,804 |
Available for Sale, Fair Value, Due after one year to five years | 768,924 |
Available for Sale, Fair Value, Due after five to ten years | 189,556 |
Available for Sale, Fair Value, Due after ten years | 735,936 |
Held to Maturity, Amortized Cost |  |
Held to Maturity, Amortized Cost, Due in one year or less | 129,471 |
Held to Maturity, Amortized Cost, Due after one year to five years | 511,741 |
Held to Maturity, Amortized Cost, Due after five to ten years | 161,224 |
Held to Maturity, Amortized Cost, Due after ten years | 555,181 |
Held to Maturity, Fair Value |  |
Held to Maturity, Fair Value, Due in one year or less | 128,506 |
Held to Maturity, Fair Value, Due after one year to five years | 489,017 |
Held to Maturity, Fair Value, Due after five to ten years | 145,208 |
Held to Maturity, Fair Value, Due after ten years | 498,021 |
Held to Maturity, Fair Value, Total | 1,260,752 |
Pooled trust preferred securities issued by banks and insurers |  |
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] |  |
Available for Sale, Amortized Cost, Due in one year or less | 0 |
Available for Sale, Amortized Cost, Due after one year to five years | 0 |
Available for Sale, Amortized Cost, Due after five to ten years | 0 |
Available for Sale, Amortized Cost, Due after ten years | 1,120 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 1,120 | 1,180
Available for Sale, Fair Value |  |
Available for Sale, Fair Value, Due in one year or less | 0 |
Available for Sale, Fair Value, Due after one year to five years | 0 |
Available for Sale, Fair Value, Due after five to ten years | 0 |
Available for Sale, Fair Value, Due after ten years | 1,040 |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 1,040 | 1,095
US States and Political Subdivisions Debt Securities [Member] |  |
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] |  |
Available for Sale, Amortized Cost, Due in one year or less | 2,690 |
Available for Sale, Amortized Cost, Due after one year to five years | 7,811 |
Available for Sale, Amortized Cost, Due after five to ten years | 4,110 |
Available for Sale, Amortized Cost, Due after ten years | 0 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 14,611 | 197
Available for Sale, Fair Value |  |
Available for Sale, Fair Value, Due in one year or less | 2,692 |
Available for Sale, Fair Value, Due after one year to five years | 7,816 |
Available for Sale, Fair Value, Due after five to ten years | 4,157 |
Available for Sale, Fair Value, Due after ten years | 0 |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 14,665 | 194
Agency Collateralized Mortgage Obligations [Member] |  |
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] |  |
Available for Sale, Amortized Cost, Due in one year or less | 49 |
Available for Sale, Amortized Cost, Due after one year to five years | 0 |
Available for Sale, Amortized Cost, Due after five to ten years | 6,487 |
Available for Sale, Amortized Cost, Due after ten years | 273,441 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 279,977 | 31,168
Available for Sale, Fair Value |  |
Available for Sale, Fair Value, Due in one year or less | 49 |
Available for Sale, Fair Value, Due after one year to five years | 0 |
Available for Sale, Fair Value, Due after five to ten years | 6,388 |
Available for Sale, Fair Value, Due after ten years | 269,740 |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 276,177 | 28,995
Held to Maturity, Amortized Cost |  |
Held to Maturity, Amortized Cost, Due in one year or less | 25,617 |
Held to Maturity, Amortized Cost, Due after one year to five years | 34,633 |
Held to Maturity, Amortized Cost, Due after five to ten years | 13,832 |
Held to Maturity, Amortized Cost, Due after ten years | 308,533 |
Held to Maturity, Fair Value |  |
Held to Maturity, Fair Value, Due in one year or less | 25,395 |
Held to Maturity, Fair Value, Due after one year to five years | 32,642 |
Held to Maturity, Fair Value, Due after five to ten years | 12,656 |
Held to Maturity, Fair Value, Due after ten years | 263,973 |
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss | 382,615 | 422,827
Held to Maturity, Fair Value, Total | 334,666 | 357,684
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] |  |
Available for Sale, Amortized Cost, Due in one year or less | 23,981 |
Available for Sale, Amortized Cost, Due after one year to five years | 210,545 |
Available for Sale, Amortized Cost, Due after five to ten years | 47,258 |
Available for Sale, Amortized Cost, Due after ten years | 445,960 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 727,744 | 415,918
Available for Sale, Fair Value |  |
Available for Sale, Fair Value, Due in one year or less | 23,356 |
Available for Sale, Fair Value, Due after one year to five years | 205,181 |
Available for Sale, Fair Value, Due after five to ten years | 43,323 |
Available for Sale, Fair Value, Due after ten years | 435,405 |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 707,265 | 378,161
Held to Maturity, Amortized Cost |  |
Held to Maturity, Amortized Cost, Due in one year or less | 103,854 |
Held to Maturity, Amortized Cost, Due after one year to five years | 377,251 |
Held to Maturity, Amortized Cost, Due after five to ten years | 140,725 |
Held to Maturity, Amortized Cost, Due after ten years | 137,253 |
Held to Maturity, Fair Value |  |
Held to Maturity, Fair Value, Due in one year or less | 103,111 |
Held to Maturity, Fair Value, Due after one year to five years | 360,916 |
Held to Maturity, Fair Value, Due after five to ten years | 126,318 |
Held to Maturity, Fair Value, Due after ten years | 128,885 |
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss | 759,083 | 788,470
Held to Maturity, Fair Value, Total | 719,230 | 726,362
US Treasury Securities [Member] |  |
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] |  |
Available for Sale, Amortized Cost, Due in one year or less | 194,862 |
Available for Sale, Amortized Cost, Due after one year to five years | 290,332 |
Available for Sale, Amortized Cost, Due after five to ten years | 0 |
Available for Sale, Amortized Cost, Due after ten years | 0 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 485,194 | 628,017
Available for Sale, Fair Value |  |
Available for Sale, Fair Value, Due in one year or less | 190,736 |
Available for Sale, Fair Value, Due after one year to five years | 276,241 |
Available for Sale, Fair Value, Due after five to ten years | 0 |
Available for Sale, Fair Value, Due after ten years | 0 |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | 466,977 | 592,001
Held to Maturity, Amortized Cost |  |
Held to Maturity, Amortized Cost, Due in one year or less | 0 |
Held to Maturity, Amortized Cost, Due after one year to five years | 99,857 |
Held to Maturity, Amortized Cost, Due after five to ten years | 994 |
Held to Maturity, Amortized Cost, Due after ten years | 0 |
Held to Maturity, Fair Value |  |
Held to Maturity, Fair Value, Due in one year or less | 0 |
Held to Maturity, Fair Value, Due after one year to five years | 95,459 |
Held to Maturity, Fair Value, Due after five to ten years | 865 |
Held to Maturity, Fair Value, Due after ten years | 0 |
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss | 100,851 | 100,791
Held to Maturity, Fair Value, Total | 96,324 | 93,022
Taxable Municipal Bonds |  |
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items] |  |
Available for Sale, Amortized Cost, Due in one year or less | 500 |
Available for Sale, Amortized Cost, Due after one year to five years | 91,242 |
Available for Sale, Amortized Cost, Due after five to ten years | 123,443 |
Available for Sale, Amortized Cost, Due after ten years | 1,871 |
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss | 217,056 | 0
Available for Sale, Fair Value |  |
Available for Sale, Fair Value, Due in one year or less | 500 |
Available for Sale, Fair Value, Due after one year to five years | 91,982 |
Available for Sale, Fair Value, Due after five to ten years | 124,968 |
Available for Sale, Fair Value, Due after ten years | 1,894 |
Debt Securities, Available-for-Sale, Excluding Accrued Interest | $ 219,344 | $ 0

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