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Loans And Allowance For Credit Losses (Credit Quality Indicators Commercial Loan Portfolio) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Credit Quality Indicator [Line Items] |  |  |  |  |
Loans charged off | $ 12,025 | $ 11,868 | $ 25,318 | $ 23,033 |
Commercial Portfolio Segment [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 1,683,281 |  | 1,683,281 |  | $ 2,697,978
Fiscal Year before Current Fiscal Year | 2,215,667 |  | 2,215,667 |  | 2,043,809
Two Years before Current Fiscal Year | 1,670,204 |  | 1,670,204 |  | 1,878,607
Three Years before Current Fiscal Year | 1,644,225 |  | 1,644,225 |  | 947,349
Four Years before Current Fiscal Year | 792,869 |  | 792,869 |  | 537,261
Prior | 1,090,948 |  | 1,090,948 |  | 837,905
Revolving Loans Amortized Cost Basis | 2,394,666 |  | 2,394,666 |  | 2,182,030
Total | 11,491,860 |  | 11,491,860 |  | 11,124,939
Loans charged off | 495 | $ 850 | 1,221 | $ 1,166 | 2,035
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff |  |  | 0 |  | 200
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff |  |  | 208 |  | 275
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff |  |  | 400 |  | 40
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff |  |  | 0 |  | 53
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff |  |  | 0 |  | 0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff |  |  | 10 |  | 80
Financing Receivable, Revolving, Writeoff |  |  | 603 |  | 1,387
Commercial Portfolio Segment [Member] | Business Loan [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 948,032 |  | 948,032 |  | 1,521,094
Fiscal Year before Current Fiscal Year | 1,195,858 |  | 1,195,858 |  | 970,070
Two Years before Current Fiscal Year | 721,863 |  | 721,863 |  | 624,768
Three Years before Current Fiscal Year | 515,392 |  | 515,392 |  | 414,893
Four Years before Current Fiscal Year | 320,088 |  | 320,088 |  | 149,674
Prior | 411,545 |  | 411,545 |  | 362,309
Revolving Loans Amortized Cost Basis | 2,215,906 |  | 2,215,906 |  | 2,011,012
Total | 6,328,684 |  | 6,328,684 |  | 6,053,820
Loans charged off |  |  | 797 |  | 1,973
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff |  |  | 0 |  | 200
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff |  |  | 184 |  | 275
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff |  |  | 0 |  | 40
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff |  |  | 0 |  | 53
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff |  |  | 0 |  | 0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff |  |  | 10 |  | 18
Financing Receivable, Revolving, Writeoff |  |  | 603 |  | 1,387
Commercial Portfolio Segment [Member] | Real estate - construction and land |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 161,410 |  | 161,410 |  | 419,782
Fiscal Year before Current Fiscal Year | 368,196 |  | 368,196 |  | 445,383
Two Years before Current Fiscal Year | 433,694 |  | 433,694 |  | 451,606
Three Years before Current Fiscal Year | 394,007 |  | 394,007 |  | 53,462
Four Years before Current Fiscal Year | 22,414 |  | 22,414 |  | 3,143
Prior | 3,548 |  | 3,548 |  | 2,450
Revolving Loans Amortized Cost Basis | 22,129 |  | 22,129 |  | 34,075
Total | 1,405,398 |  | 1,405,398 |  | 1,409,901
Loans charged off |  |  | 24 |  | 0
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff |  |  | 0 |  | 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff |  |  | 24 |  | 0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff |  |  | 0 |  | 0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff |  |  | 0 |  | 0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff |  |  | 0 |  | 0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff |  |  | 0 |  | 0
Financing Receivable, Revolving, Writeoff |  |  | 0 |  | 0
Commercial Portfolio Segment [Member] | Business Real Estate Loan [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 573,839 |  | 573,839 |  | 757,102
Fiscal Year before Current Fiscal Year | 651,613 |  | 651,613 |  | 628,356
Two Years before Current Fiscal Year | 514,647 |  | 514,647 |  | 802,233
Three Years before Current Fiscal Year | 734,826 |  | 734,826 |  | 478,994
Four Years before Current Fiscal Year | 450,367 |  | 450,367 |  | 384,444
Prior | 675,855 |  | 675,855 |  | 473,146
Revolving Loans Amortized Cost Basis | 156,631 |  | 156,631 |  | 136,943
Total | 3,757,778 |  | 3,757,778 |  | 3,661,218
Loans charged off |  |  | 400 |  | 62
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff |  |  | 0 |  | 0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff |  |  | 0 |  | 0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff |  |  | 400 |  | 0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff |  |  | 0 |  | 0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff |  |  | 0 |  | 0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff |  |  | 0 |  | 62
Financing Receivable, Revolving, Writeoff |  |  | 0 |  | 0
Commercial Portfolio Segment [Member] | Pass [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 1,678,016 |  | 1,678,016 |  | 2,680,359
Fiscal Year before Current Fiscal Year | 2,186,337 |  | 2,186,337 |  | 2,004,105
Two Years before Current Fiscal Year | 1,612,368 |  | 1,612,368 |  | 1,801,310
Three Years before Current Fiscal Year | 1,566,606 |  | 1,566,606 |  | 907,172
Four Years before Current Fiscal Year | 767,866 |  | 767,866 |  | 515,343
Prior | 999,443 |  | 999,443 |  | 720,906
Revolving Loans Amortized Cost Basis | 2,222,396 |  | 2,222,396 |  | 2,051,539
Total | 11,033,032 |  | 11,033,032 |  | 10,680,734
Commercial Portfolio Segment [Member] | Pass [Member] | Business Loan [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 945,508 |  | 945,508 |  | 1,505,299
Fiscal Year before Current Fiscal Year | 1,186,213 |  | 1,186,213 |  | 956,449
Two Years before Current Fiscal Year | 710,351 |  | 710,351 |  | 596,681
Three Years before Current Fiscal Year | 491,234 |  | 491,234 |  | 405,669
Four Years before Current Fiscal Year | 310,530 |  | 310,530 |  | 148,483
Prior | 401,536 |  | 401,536 |  | 350,106
Revolving Loans Amortized Cost Basis | 2,050,589 |  | 2,050,589 |  | 1,887,596
Total | 6,095,961 |  | 6,095,961 |  | 5,850,283
Commercial Portfolio Segment [Member] | Pass [Member] | Real estate - construction and land |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 159,498 |  | 159,498 |  | 419,562
Fiscal Year before Current Fiscal Year | 367,770 |  | 367,770 |  | 442,720
Two Years before Current Fiscal Year | 431,180 |  | 431,180 |  | 451,606
Three Years before Current Fiscal Year | 381,011 |  | 381,011 |  | 53,462
Four Years before Current Fiscal Year | 22,414 |  | 22,414 |  | 3,143
Prior | 3,548 |  | 3,548 |  | 2,450
Revolving Loans Amortized Cost Basis | 22,129 |  | 22,129 |  | 34,075
Total | 1,387,550 |  | 1,387,550 |  | 1,407,018
Commercial Portfolio Segment [Member] | Pass [Member] | Business Real Estate Loan [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 573,010 |  | 573,010 |  | 755,498
Fiscal Year before Current Fiscal Year | 632,354 |  | 632,354 |  | 604,936
Two Years before Current Fiscal Year | 470,837 |  | 470,837 |  | 753,023
Three Years before Current Fiscal Year | 694,361 |  | 694,361 |  | 448,041
Four Years before Current Fiscal Year | 434,922 |  | 434,922 |  | 363,717
Prior | 594,359 |  | 594,359 |  | 368,350
Revolving Loans Amortized Cost Basis | 149,678 |  | 149,678 |  | 129,868
Total | 3,549,521 |  | 3,549,521 |  | 3,423,433
Commercial Portfolio Segment [Member] | Special Mention [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 5,265 |  | 5,265 |  | 13,900
Fiscal Year before Current Fiscal Year | 26,568 |  | 26,568 |  | 7,978
Two Years before Current Fiscal Year | 8,806 |  | 8,806 |  | 21,324
Three Years before Current Fiscal Year | 30,824 |  | 30,824 |  | 16,679
Four Years before Current Fiscal Year | 1,494 |  | 1,494 |  | 1,906
Prior | 4,138 |  | 4,138 |  | 2,363
Revolving Loans Amortized Cost Basis | 90,028 |  | 90,028 |  | 34,997
Total | 167,123 |  | 167,123 |  | 99,147
Commercial Portfolio Segment [Member] | Special Mention [Member] | Business Loan [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 2,524 |  | 2,524 |  | 13,576
Fiscal Year before Current Fiscal Year | 8,267 |  | 8,267 |  | 7,978
Two Years before Current Fiscal Year | 5,751 |  | 5,751 |  | 8,941
Three Years before Current Fiscal Year | 5,048 |  | 5,048 |  | 4,155
Four Years before Current Fiscal Year | 377 |  | 377 |  | 263
Prior | 1,792 |  | 1,792 |  | 2,065
Revolving Loans Amortized Cost Basis | 90,028 |  | 90,028 |  | 34,997
Total | 113,787 |  | 113,787 |  | 71,975
Commercial Portfolio Segment [Member] | Special Mention [Member] | Real estate - construction and land |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 1,912 |  | 1,912 |  | 0
Fiscal Year before Current Fiscal Year | 0 |  | 0 |  | 0
Two Years before Current Fiscal Year | 0 |  | 0 |  | 0
Three Years before Current Fiscal Year | 12,996 |  | 12,996 |  | 0
Four Years before Current Fiscal Year | 0 |  | 0 |  | 0
Prior | 0 |  | 0 |  | 0
Revolving Loans Amortized Cost Basis | 0 |  | 0 |  | 0
Total | 14,908 |  | 14,908 |  | 0
Commercial Portfolio Segment [Member] | Special Mention [Member] | Business Real Estate Loan [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 829 |  | 829 |  | 324
Fiscal Year before Current Fiscal Year | 18,301 |  | 18,301 |  | 0
Two Years before Current Fiscal Year | 3,055 |  | 3,055 |  | 12,383
Three Years before Current Fiscal Year | 12,780 |  | 12,780 |  | 12,524
Four Years before Current Fiscal Year | 1,117 |  | 1,117 |  | 1,643
Prior | 2,346 |  | 2,346 |  | 298
Revolving Loans Amortized Cost Basis | 0 |  | 0 |  | 0
Total | 38,428 |  | 38,428 |  | 27,172
Commercial Portfolio Segment [Member] | Substandard [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 0 |  | 0 |  | 3,498
Fiscal Year before Current Fiscal Year | 2,088 |  | 2,088 |  | 31,679
Two Years before Current Fiscal Year | 48,725 |  | 48,725 |  | 55,802
Three Years before Current Fiscal Year | 46,503 |  | 46,503 |  | 23,498
Four Years before Current Fiscal Year | 23,344 |  | 23,344 |  | 5,344
Prior | 72,858 |  | 72,858 |  | 114,468
Revolving Loans Amortized Cost Basis | 82,242 |  | 82,242 |  | 95,494
Total | 275,760 |  | 275,760 |  | 329,783
Commercial Portfolio Segment [Member] | Substandard [Member] | Business Loan [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 0 |  | 0 |  | 2,218
Fiscal Year before Current Fiscal Year | 1,130 |  | 1,130 |  | 5,596
Two Years before Current Fiscal Year | 5,600 |  | 5,600 |  | 19,145
Three Years before Current Fiscal Year | 19,110 |  | 19,110 |  | 5,069
Four Years before Current Fiscal Year | 9,181 |  | 9,181 |  | 928
Prior | 8,216 |  | 8,216 |  | 10,086
Revolving Loans Amortized Cost Basis | 75,289 |  | 75,289 |  | 88,419
Total | 118,526 |  | 118,526 |  | 131,461
Commercial Portfolio Segment [Member] | Substandard [Member] | Real estate - construction and land |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 0 |  | 0 |  | 0
Fiscal Year before Current Fiscal Year | 0 |  | 0 |  | 2,663
Two Years before Current Fiscal Year | 2,514 |  | 2,514 |  | 0
Three Years before Current Fiscal Year | 0 |  | 0 |  | 0
Four Years before Current Fiscal Year | 0 |  | 0 |  | 0
Prior | 0 |  | 0 |  | 0
Revolving Loans Amortized Cost Basis | 0 |  | 0 |  | 0
Total | 2,514 |  | 2,514 |  | 2,663
Commercial Portfolio Segment [Member] | Substandard [Member] | Business Real Estate Loan [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 0 |  | 0 |  | 1,280
Fiscal Year before Current Fiscal Year | 958 |  | 958 |  | 23,420
Two Years before Current Fiscal Year | 40,611 |  | 40,611 |  | 36,657
Three Years before Current Fiscal Year | 27,393 |  | 27,393 |  | 18,429
Four Years before Current Fiscal Year | 14,163 |  | 14,163 |  | 4,416
Prior | 64,642 |  | 64,642 |  | 104,382
Revolving Loans Amortized Cost Basis | 6,953 |  | 6,953 |  | 7,075
Total | 154,720 |  | 154,720 |  | 195,659
Commercial Portfolio Segment [Member] | Non-Accrual [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 0 |  | 0 |  | 221
Fiscal Year before Current Fiscal Year | 674 |  | 674 |  | 47
Two Years before Current Fiscal Year | 305 |  | 305 |  | 171
Three Years before Current Fiscal Year | 292 |  | 292 |  | 0
Four Years before Current Fiscal Year | 165 |  | 165 |  | 14,668
Prior | 14,509 |  | 14,509 |  | 168
Revolving Loans Amortized Cost Basis | 0 |  | 0 |  | 0
Total | 15,945 |  | 15,945 |  | 15,275
Commercial Portfolio Segment [Member] | Non-Accrual [Member] | Business Loan [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 0 |  | 0 |  | 1
Fiscal Year before Current Fiscal Year | 248 |  | 248 |  | 47
Two Years before Current Fiscal Year | 161 |  | 161 |  | 1
Three Years before Current Fiscal Year | 0 |  | 0 |  | 0
Four Years before Current Fiscal Year | 0 |  | 0 |  | 0
Prior | 1 |  | 1 |  | 52
Revolving Loans Amortized Cost Basis | 0 |  | 0 |  | 0
Total | 410 |  | 410 |  | 101
Commercial Portfolio Segment [Member] | Non-Accrual [Member] | Real estate - construction and land |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 0 |  | 0 |  | 220
Fiscal Year before Current Fiscal Year | 426 |  | 426 |  | 0
Two Years before Current Fiscal Year | 0 |  | 0 |  | 0
Three Years before Current Fiscal Year | 0 |  | 0 |  | 0
Four Years before Current Fiscal Year | 0 |  | 0 |  | 0
Prior | 0 |  | 0 |  | 0
Revolving Loans Amortized Cost Basis | 0 |  | 0 |  | 0
Total | 426 |  | 426 |  | 220
Commercial Portfolio Segment [Member] | Non-Accrual [Member] | Business Real Estate Loan [Member] |  |  |  |  |
Credit Quality Indicator [Line Items] |  |  |  |  |
Current Fiscal Year | 0 |  | 0 |  | 0
Fiscal Year before Current Fiscal Year | 0 |  | 0 |  | 0
Two Years before Current Fiscal Year | 144 |  | 144 |  | 170
Three Years before Current Fiscal Year | 292 |  | 292 |  | 0
Four Years before Current Fiscal Year | 165 |  | 165 |  | 14,668
Prior | 14,508 |  | 14,508 |  | 116
Revolving Loans Amortized Cost Basis | 0 |  | 0 |  | 0
Total | $ 15,109 |  | $ 15,109 |  | $ 14,954

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