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Loans and Leases - Credit Quality Indicators (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Financing Receivable |  |  |
Total | $ 52,505,168 | $ 50,726,052 |
Current period gross write-offs |  |  |
Total | 176,470 | 117,212 | $ 87,522
Consumer portfolio |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 1,298,754 | 816,641 |
Total financing receivable, Fiscal year before current fiscal year | 763,519 | 2,019,764 |
Total financing receivable, Two years before current fiscal year | 1,924,258 | 2,286,113 |
Total financing receivable, Three years before current fiscal year | 2,156,856 | 893,040 |
Total financing receivable, Four years before current fiscal year | 811,965 | 462,450 |
Total financing receivable, More than five years before current fiscal year | 2,420,593 | 2,185,134 |
Revolving Loans Amortized Cost Basis | 1,061,222 | 1,133,076 |
Total | 10,437,167 | 9,796,218 |
Current period gross write-offs |  |  |
Current fiscal year | 3,467 | 3,263 |
Fiscal year before current fiscal year | 17 | 11 |
Two years before current fiscal year | 34 | 470 |
Three years before current fiscal year | 20 | 218 |
Four years before current fiscal year | 115 | 634 |
More than five years before current fiscal year | 784 | 8,107 |
Revolving Loans Amortized Cost Basis | 573 | 0 |
Total | 5,010 | 12,703 | $ 4,662
Consumer portfolio | Residential |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 1,151,655 | 742,719 |
Total financing receivable, Fiscal year before current fiscal year | 697,121 | 1,949,928 |
Total financing receivable, Two years before current fiscal year | 1,862,151 | 2,201,633 |
Total financing receivable, Three years before current fiscal year | 2,082,332 | 843,276 |
Total financing receivable, Four years before current fiscal year | 770,546 | 441,840 |
Total financing receivable, More than five years before current fiscal year | 2,289,864 | 2,048,527 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Total | 8,853,669 | 8,227,923 |
Current period gross write-offs |  |  |
Current fiscal year | 0 | 0 |
Fiscal year before current fiscal year | 0 | 0 |
Two years before current fiscal year | 0 | 387 |
Three years before current fiscal year | 0 | 0 |
Four years before current fiscal year | 0 | 153 |
More than five years before current fiscal year | 147 | 4,630 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Total | 147 | 5,170 |
Consumer portfolio | Home equity |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 37,780 | 71,452 |
Total financing receivable, Fiscal year before current fiscal year | 64,724 | 68,058 |
Total financing receivable, Two years before current fiscal year | 61,048 | 81,533 |
Total financing receivable, Three years before current fiscal year | 72,184 | 47,700 |
Total financing receivable, Four years before current fiscal year | 40,991 | 18,124 |
Total financing receivable, More than five years before current fiscal year | 129,910 | 136,013 |
Revolving Loans Amortized Cost Basis | 1,021,055 | 1,094,075 |
Total | 1,427,692 | 1,516,955 |
Current period gross write-offs |  |  |
Current fiscal year | 0 | 0 |
Fiscal year before current fiscal year | 0 | 4 |
Two years before current fiscal year | 0 | 81 |
Three years before current fiscal year | 0 | 0 |
Four years before current fiscal year | 2 | 104 |
More than five years before current fiscal year | 444 | 3,114 |
Revolving Loans Amortized Cost Basis | 351 | 0 |
Total | 797 | 3,303 |
Consumer portfolio | Other consumer |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 109,319 | 2,470 |
Total financing receivable, Fiscal year before current fiscal year | 1,674 | 1,778 |
Total financing receivable, Two years before current fiscal year | 1,059 | 2,947 |
Total financing receivable, Three years before current fiscal year | 2,340 | 2,064 |
Total financing receivable, Four years before current fiscal year | 428 | 2,486 |
Total financing receivable, More than five years before current fiscal year | 819 | 594 |
Revolving Loans Amortized Cost Basis | 40,167 | 39,001 |
Total | 155,806 | 51,340 |
Current period gross write-offs |  |  |
Current fiscal year | 3,467 | 3,263 |
Fiscal year before current fiscal year | 17 | 7 |
Two years before current fiscal year | 34 | 2 |
Three years before current fiscal year | 20 | 218 |
Four years before current fiscal year | 113 | 377 |
More than five years before current fiscal year | 193 | 363 |
Revolving Loans Amortized Cost Basis | 222 | 0 |
Total | 4,066 | 4,230 |
800+ | Consumer portfolio | Residential |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 312,771 | 214,446 |
Total financing receivable, Fiscal year before current fiscal year | 299,006 | 847,009 |
Total financing receivable, Two years before current fiscal year | 909,109 | 1,096,109 |
Total financing receivable, Three years before current fiscal year | 1,097,807 | 451,307 |
Total financing receivable, Four years before current fiscal year | 433,950 | 141,919 |
Total financing receivable, More than five years before current fiscal year | 956,478 | 910,117 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Total | 4,009,121 | 3,660,907 |
800+ | Consumer portfolio | Home equity |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 12,313 | 27,047 |
Total financing receivable, Fiscal year before current fiscal year | 25,226 | 27,439 |
Total financing receivable, Two years before current fiscal year | 23,512 | 35,927 |
Total financing receivable, Three years before current fiscal year | 32,695 | 25,586 |
Total financing receivable, Four years before current fiscal year | 22,705 | 8,110 |
Total financing receivable, More than five years before current fiscal year | 53,844 | 56,062 |
Revolving Loans Amortized Cost Basis | 365,741 | 391,616 |
Total | 536,036 | 571,787 |
800+ | Consumer portfolio | Other consumer |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 4,920 | 432 |
Total financing receivable, Fiscal year before current fiscal year | 312 | 356 |
Total financing receivable, Two years before current fiscal year | 218 | 1,913 |
Total financing receivable, Three years before current fiscal year | 1,765 | 189 |
Total financing receivable, Four years before current fiscal year | 50 | 255 |
Total financing receivable, More than five years before current fiscal year | 284 | 77 |
Revolving Loans Amortized Cost Basis | 31,549 | 25,699 |
Total | 39,098 | 28,921 |
740-799 | Consumer portfolio | Residential |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 649,118 | 363,696 |
Total financing receivable, Fiscal year before current fiscal year | 258,699 | 703,568 |
Total financing receivable, Two years before current fiscal year | 567,545 | 755,750 |
Total financing receivable, Three years before current fiscal year | 656,599 | 279,946 |
Total financing receivable, Four years before current fiscal year | 235,749 | 112,303 |
Total financing receivable, More than five years before current fiscal year | 623,989 | 633,578 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Total | 2,991,699 | 2,848,841 |
740-799 | Consumer portfolio | Home equity |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 12,238 | 24,772 |
Total financing receivable, Fiscal year before current fiscal year | 21,831 | 20,069 |
Total financing receivable, Two years before current fiscal year | 20,718 | 27,147 |
Total financing receivable, Three years before current fiscal year | 23,517 | 13,888 |
Total financing receivable, Four years before current fiscal year | 10,861 | 5,158 |
Total financing receivable, More than five years before current fiscal year | 33,703 | 34,190 |
Revolving Loans Amortized Cost Basis | 330,691 | 355,926 |
Total | 453,559 | 481,150 |
740-799 | Consumer portfolio | Other consumer |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 45,001 | 1,318 |
Total financing receivable, Fiscal year before current fiscal year | 721 | 586 |
Total financing receivable, Two years before current fiscal year | 301 | 486 |
Total financing receivable, Three years before current fiscal year | 165 | 730 |
Total financing receivable, Four years before current fiscal year | 124 | 690 |
Total financing receivable, More than five years before current fiscal year | 266 | 381 |
Revolving Loans Amortized Cost Basis | 3,550 | 7,180 |
Total | 50,128 | 11,371 |
670-739 | Consumer portfolio | Residential |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 172,886 | 137,460 |
Total financing receivable, Fiscal year before current fiscal year | 123,354 | 293,699 |
Total financing receivable, Two years before current fiscal year | 317,373 | 292,255 |
Total financing receivable, Three years before current fiscal year | 271,247 | 95,838 |
Total financing receivable, Four years before current fiscal year | 80,318 | 48,412 |
Total financing receivable, More than five years before current fiscal year | 550,252 | 346,663 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Total | 1,515,430 | 1,214,327 |
670-739 | Consumer portfolio | Home equity |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 11,416 | 15,857 |
Total financing receivable, Fiscal year before current fiscal year | 14,298 | 15,655 |
Total financing receivable, Two years before current fiscal year | 12,732 | 15,389 |
Total financing receivable, Three years before current fiscal year | 13,074 | 5,992 |
Total financing receivable, Four years before current fiscal year | 6,242 | 3,189 |
Total financing receivable, More than five years before current fiscal year | 28,638 | 29,454 |
Revolving Loans Amortized Cost Basis | 224,449 | 242,189 |
Total | 310,849 | 327,725 |
670-739 | Consumer portfolio | Other consumer |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 57,952 | 526 |
Total financing receivable, Fiscal year before current fiscal year | 432 | 570 |
Total financing receivable, Two years before current fiscal year | 372 | 358 |
Total financing receivable, Three years before current fiscal year | 313 | 981 |
Total financing receivable, Four years before current fiscal year | 220 | 1,210 |
Total financing receivable, More than five years before current fiscal year | 188 | 79 |
Revolving Loans Amortized Cost Basis | 3,349 | 3,549 |
Total | 62,826 | 7,273 |
580-669 | Consumer portfolio | Residential |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 16,643 | 20,208 |
Total financing receivable, Fiscal year before current fiscal year | 13,382 | 52,962 |
Total financing receivable, Two years before current fiscal year | 55,507 | 45,770 |
Total financing receivable, Three years before current fiscal year | 35,292 | 14,840 |
Total financing receivable, Four years before current fiscal year | 16,738 | 10,492 |
Total financing receivable, More than five years before current fiscal year | 109,240 | 106,497 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Total | 246,802 | 250,769 |
580-669 | Consumer portfolio | Home equity |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 1,755 | 3,080 |
Total financing receivable, Fiscal year before current fiscal year | 2,570 | 3,786 |
Total financing receivable, Two years before current fiscal year | 1,685 | 1,991 |
Total financing receivable, Three years before current fiscal year | 2,172 | 1,658 |
Total financing receivable, Four years before current fiscal year | 754 | 1,115 |
Total financing receivable, More than five years before current fiscal year | 9,471 | 9,988 |
Revolving Loans Amortized Cost Basis | 67,745 | 70,102 |
Total | 86,152 | 91,720 |
580-669 | Consumer portfolio | Other consumer |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 1,417 | 69 |
Total financing receivable, Fiscal year before current fiscal year | 116 | 169 |
Total financing receivable, Two years before current fiscal year | 105 | 129 |
Total financing receivable, Three years before current fiscal year | 69 | 153 |
Total financing receivable, Four years before current fiscal year | 25 | 303 |
Total financing receivable, More than five years before current fiscal year | 81 | 56 |
Revolving Loans Amortized Cost Basis | 1,150 | 1,983 |
Total | 2,963 | 2,862 |
579 and below | Consumer portfolio | Residential |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 237 | 6,909 |
Total financing receivable, Fiscal year before current fiscal year | 2,680 | 52,690 |
Total financing receivable, Two years before current fiscal year | 12,617 | 11,749 |
Total financing receivable, Three years before current fiscal year | 21,387 | 1,345 |
Total financing receivable, Four years before current fiscal year | 3,791 | 128,714 |
Total financing receivable, More than five years before current fiscal year | 49,905 | 51,672 |
Revolving Loans Amortized Cost Basis | 0 | 0 |
Total | 90,617 | 253,079 |
579 and below | Consumer portfolio | Home equity |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 58 | 696 |
Total financing receivable, Fiscal year before current fiscal year | 799 | 1,109 |
Total financing receivable, Two years before current fiscal year | 2,401 | 1,079 |
Total financing receivable, Three years before current fiscal year | 726 | 576 |
Total financing receivable, Four years before current fiscal year | 429 | 552 |
Total financing receivable, More than five years before current fiscal year | 4,254 | 6,319 |
Revolving Loans Amortized Cost Basis | 32,429 | 34,242 |
Total | 41,096 | 44,573 |
579 and below | Consumer portfolio | Other consumer |  |  |
Financing Receivable |  |  |
Total financing receivable, Current fiscal year | 29 | 125 |
Total financing receivable, Fiscal year before current fiscal year | 93 | 97 |
Total financing receivable, Two years before current fiscal year | 63 | 61 |
Total financing receivable, Three years before current fiscal year | 28 | 11 |
Total financing receivable, Four years before current fiscal year | 9 | 28 |
Total financing receivable, More than five years before current fiscal year | 0 | 1 |
Revolving Loans Amortized Cost Basis | 569 | 590 |
Total | $ 791 | $ 913 |

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