Loans, Credit Quality Indicator by Vintage Year (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	$ 13,183	$ 18,966
Financing Receivable, Revolving	2,981,010	2,712,389
Financing Receivable, Year One, Originated, Current Fiscal Year	6,227,743	5,363,890
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,280,254	8,307,956
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	7,136,344	6,039,862
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	4,086,483	2,556,071
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,945,455	1,578,023
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	3,111,296	2,658,026
Financing Receivable, before Allowance for Credit Loss, Total	29,768,586	29,216,218
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	11,082	9,068
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	7,183	1,535
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	14,697	14,224
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	14,300	26,093
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	28,283	6,237
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	209	130
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	662	1,482
Financing Receivable, Allowance for Credit Loss, Writeoff	76,415	58,768
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	9,320	10,204
Financing Receivable, Revolving	2,887,188	2,604,690
Financing Receivable, Year One, Originated, Current Fiscal Year	5,928,329	5,206,038
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,178,435	8,093,062
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	6,680,015	5,886,359
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	3,859,616	2,511,435
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,922,456	1,537,747
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	3,041,886	2,556,674
Financing Receivable, before Allowance for Credit Loss, Total	28,497,925	28,396,005
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	127	205
Financing Receivable, Revolving	50,036	23,595
Financing Receivable, Year One, Originated, Current Fiscal Year	92,851	8,893
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	12,396	74,020
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	191,587	41,091
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	28,101	6,213
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	7,385	29,882
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	13,701	33,089
Financing Receivable, before Allowance for Credit Loss, Total	396,057	216,784
Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	2,015	814
Financing Receivable, Revolving	43,602	83,872
Financing Receivable, Year One, Originated, Current Fiscal Year	190,993	131,753
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	79,035	112,289
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	235,110	68,695
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	182,313	27,253
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	7,103	3,387
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	13,189	27,183
Financing Receivable, before Allowance for Credit Loss, Total	751,344	454,432
Nonaccrual Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	1,721	7,744
Financing Receivable, Revolving	185	231
Financing Receivable, Year One, Originated, Current Fiscal Year	15,570	17,206
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	10,389	28,584
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	29,632	43,718
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	16,453	11,170
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	8,512	7,007
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	42,519	41,080
Financing Receivable, before Allowance for Credit Loss, Total	123,260	148,997
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	2,306	8,598
Financing Receivable, Revolving	2,166,104	1,991,827
Financing Receivable, Year One, Originated, Current Fiscal Year	4,794,949	3,781,028
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	2,902,201	5,687,614
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	4,860,631	3,835,298
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	2,376,387	1,127,677
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	738,576	917,114
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,089,243	848,341
Financing Receivable, before Allowance for Credit Loss, Total	18,928,090	18,188,898
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	4,433	4,130
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	6,745	717
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	11,485	9,594
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	8,510	25,270
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	27,528	5,958
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	3	25
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	3	295
Financing Receivable, Allowance for Credit Loss, Writeoff	58,707	45,989
Commercial Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	248	1,380
Financing Receivable, Revolving	2,076,092	1,887,058
Financing Receivable, Year One, Originated, Current Fiscal Year	4,499,360	3,626,800
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	2,805,832	5,489,219
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	4,422,105	3,691,830
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	2,160,547	1,093,633
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	724,088	884,162
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,062,831	788,529
Financing Receivable, before Allowance for Credit Loss, Total	17,750,855	17,461,232
Commercial Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	48,829	22,552
Financing Receivable, Year One, Originated, Current Fiscal Year	92,469	8,265
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	11,692	72,084
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	190,504	40,882
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	27,916	6,164
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	7,385	29,772
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	13,217	32,648
Financing Receivable, before Allowance for Credit Loss, Total	392,012	212,368
Commercial Portfolio Segment [Member] | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	2,015	804
Financing Receivable, Revolving	41,183	82,216
Financing Receivable, Year One, Originated, Current Fiscal Year	190,399	131,253
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	78,708	112,123
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	235,033	68,695
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	182,313	27,253
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	7,103	3,180
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	13,165	27,157
Financing Receivable, before Allowance for Credit Loss, Total	747,903	451,876
Commercial Portfolio Segment [Member] | Nonaccrual Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	42	6,414
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	12,721	14,710
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	5,969	14,188
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	12,988	33,891
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	5,612	627
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	30	6
Financing Receivable, before Allowance for Credit Loss, Total	37,320	63,422
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	2,306	8,598
Financing Receivable, Revolving	1,930,860	1,796,951
Financing Receivable, Year One, Originated, Current Fiscal Year	2,752,002	1,764,466
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,533,233	2,977,719
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,365,866	1,914,057
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,214,154	419,934
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	267,148	383,789
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	510,480	474,638
Financing Receivable, before Allowance for Credit Loss, Total	10,573,741	9,731,555
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	4,433	4,130
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	128	717
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	11,484	9,594
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	8,510	25,270
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	22,959	5,958
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	3	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	0	18
Financing Receivable, Allowance for Credit Loss, Writeoff	47,517	45,687
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	248	1,380
Financing Receivable, Revolving	1,841,790	1,693,249
Financing Receivable, Year One, Originated, Current Fiscal Year	2,656,953	1,736,617
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,514,277	2,877,173
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,254,758	1,824,362
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,080,180	398,046
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	263,286	383,695
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	510,301	449,006
Financing Receivable, before Allowance for Credit Loss, Total	10,121,545	9,362,149
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	48,829	21,779
Financing Receivable, Year One, Originated, Current Fiscal Year	4,037	4,017
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,810	46,610
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	63,390	8,525
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	6,984	3,529
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	515	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	48	25,341
Financing Receivable, before Allowance for Credit Loss, Total	128,613	109,801
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	2,015	804
Financing Receivable, Revolving	40,240	81,924
Financing Receivable, Year One, Originated, Current Fiscal Year	90,240	10,515
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	9,677	39,748
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	34,730	47,279
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	126,134	17,732
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	3,347	94
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	131	291
Financing Receivable, before Allowance for Credit Loss, Total	304,500	197,582
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector [Member] | Nonaccrual Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	42	6,414
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	772	13,317
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,468	14,188
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	12,988	33,891
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	855	627
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	19,084	62,022
Commercial Portfolio Segment [Member] | Commercial Real Estate Owner Occupied Portfolio [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	14,703	15,957
Financing Receivable, Year One, Originated, Current Fiscal Year	231,446	220,168
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	187,066	190,794
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	181,625	251,783
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	223,557	147,708
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	117,435	138,816
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	187,911	96,473
Financing Receivable, before Allowance for Credit Loss, Total	1,143,741	1,061,700
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	0	0
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	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	25
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	3	0
Financing Receivable, Allowance for Credit Loss, Writeoff	3	25
Commercial Portfolio Segment [Member] | Commercial Real Estate Owner Occupied Portfolio [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	13,760	15,393
Financing Receivable, Year One, Originated, Current Fiscal Year	228,913	204,039
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	175,059	188,003
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	180,132	239,218
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	214,237	136,535
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	114,064	135,730
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	181,982	92,339
Financing Receivable, before Allowance for Credit Loss, Total	1,108,147	1,011,259
Commercial Portfolio Segment [Member] | Commercial Real Estate Owner Occupied Portfolio [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	271
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	497	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	6,150
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	8,619	2,635
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,803	1,293
Financing Receivable, before Allowance for Credit Loss, Total	11,920	10,349
Commercial Portfolio Segment [Member] | Commercial Real Estate Owner Occupied Portfolio [Member] | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	943	292
Financing Receivable, Year One, Originated, Current Fiscal Year	2,532	14,735
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	10,009	2,791
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,492	6,416
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	701	8,537
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	3,371	3,086
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	3,125	2,841
Financing Receivable, before Allowance for Credit Loss, Total	22,173	38,699
Commercial Portfolio Segment [Member] | Commercial Real Estate Owner Occupied Portfolio [Member] | Nonaccrual Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	0	1,394
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,501	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	1,501	1,394
Commercial Portfolio Segment [Member] | Commercial And Business Lending [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	2,306	8,598
Financing Receivable, Revolving	1,945,563	1,812,909
Financing Receivable, Year One, Originated, Current Fiscal Year	2,983,447	1,984,635
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,720,298	3,168,514
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,547,491	2,165,840
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,437,710	567,642
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	384,583	522,606
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	698,390	571,111
Financing Receivable, before Allowance for Credit Loss, Total	11,717,483	10,793,255
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	4,433	4,130
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	128	717
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	11,484	9,594
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	8,510	25,270
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	22,959	5,958
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	3	25
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	3	18
Financing Receivable, Allowance for Credit Loss, Writeoff	47,520	45,713
Commercial Portfolio Segment [Member] | Commercial And Business Lending [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	248	1,380
Financing Receivable, Revolving	1,855,550	1,708,642
Financing Receivable, Year One, Originated, Current Fiscal Year	2,885,866	1,940,657
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,689,336	3,065,177
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,434,891	2,063,580
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,294,416	534,581
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	377,350	519,426
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	692,283	541,345
Financing Receivable, before Allowance for Credit Loss, Total	11,229,693	10,373,408
Commercial Portfolio Segment [Member] | Commercial And Business Lending [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	48,829	22,050
Financing Receivable, Year One, Originated, Current Fiscal Year	4,037	4,017
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	5,307	46,610
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	63,390	14,675
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	15,604	6,164
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	515	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,852	26,634
Financing Receivable, before Allowance for Credit Loss, Total	140,532	120,150
Commercial Portfolio Segment [Member] | Commercial And Business Lending [Member] | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	2,015	804
Financing Receivable, Revolving	41,183	82,216
Financing Receivable, Year One, Originated, Current Fiscal Year	92,772	25,250
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	19,686	42,539
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	36,222	53,695
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	126,835	26,269
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	6,719	3,180
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	3,255	3,132
Financing Receivable, before Allowance for Credit Loss, Total	326,673	236,281
Commercial Portfolio Segment [Member] | Commercial And Business Lending [Member] | Nonaccrual Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	42	6,414
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	772	14,710
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	5,969	14,188
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	12,988	33,891
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	855	627
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	20,585	63,416
Commercial Portfolio Segment [Member] | Commercial Real Estate Investor Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	190,451	155,611
Financing Receivable, Year One, Originated, Current Fiscal Year	1,485,088	1,374,116
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	785,058	1,342,492
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,303,690	1,121,633
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	751,786	472,355
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	328,338	388,768
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	383,563	269,269
Financing Receivable, before Allowance for Credit Loss, Total	5,227,975	5,124,245
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	6,617	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	1	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	4,569	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	252
Financing Receivable, Allowance for Credit Loss, Writeoff	11,187	252
Commercial Portfolio Segment [Member] | Commercial Real Estate Investor Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	190,451	155,109
Financing Receivable, Year One, Originated, Current Fiscal Year	1,334,740	1,263,866
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	725,652	1,247,434
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,179,867	1,080,425
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	723,994	471,371
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	321,084	358,996
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	363,288	239,230
Financing Receivable, before Allowance for Credit Loss, Total	4,839,076	4,816,433
Commercial Portfolio Segment [Member] | Commercial Real Estate Investor Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	502
Financing Receivable, Year One, Originated, Current Fiscal Year	69,014	4,248
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	6,385	25,474
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	30,672	26,208
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	12,312	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	6,870	29,772
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	10,366	6,014
Financing Receivable, before Allowance for Credit Loss, Total	135,618	92,218
Commercial Portfolio Segment [Member] | Commercial Real Estate Investor Portfolio Segment [Member] | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	69,385	106,002
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	53,022	69,584
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	93,151	15,000
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	10,724	983
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	384	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	9,910	24,025
Financing Receivable, before Allowance for Credit Loss, Total	236,576	215,595
Commercial Portfolio Segment [Member] | Commercial Real Estate Investor Portfolio Segment [Member] | Nonaccrual Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Financing Receivable, Revolving	0
Financing Receivable, Year One, Originated, Current Fiscal Year	11,949
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	4,757
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, before Allowance for Credit Loss, Total	16,705
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	30,090	23,307
Financing Receivable, Year One, Originated, Current Fiscal Year	326,414	422,277
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	396,845	1,176,608
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,009,450	547,825
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	186,890	87,680
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	25,654	5,740
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	7,289	7,960
Financing Receivable, before Allowance for Credit Loss, Total	1,982,632	2,271,398
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	0	0
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	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	25
Financing Receivable, Allowance for Credit Loss, Writeoff	0	25
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	30,090	23,307
Financing Receivable, Year One, Originated, Current Fiscal Year	278,754	422,277
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	390,845	1,176,608
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	807,347	547,825
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	142,137	87,680
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	25,654	5,740
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	7,260	7,954
Financing Receivable, before Allowance for Credit Loss, Total	1,682,086	2,271,392
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Financing Receivable, Revolving	0
Financing Receivable, Year One, Originated, Current Fiscal Year	19,419
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	96,442
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, before Allowance for Credit Loss, Total	115,862
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0
Financing Receivable, Revolving	0
Financing Receivable, Year One, Originated, Current Fiscal Year	28,241
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	6,000
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	105,660
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	44,754
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0
Financing Receivable, before Allowance for Credit Loss, Total	184,654
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Nonaccrual Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	30	6
Financing Receivable, before Allowance for Credit Loss, Total	30	6
Commercial Portfolio Segment [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	220,541	178,918
Financing Receivable, Year One, Originated, Current Fiscal Year	1,811,502	1,796,393
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,181,903	2,519,100
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,313,140	1,669,458
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	938,677	560,035
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	353,992	394,508
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	390,853	277,230
Financing Receivable, before Allowance for Credit Loss, Total	7,210,607	7,395,644
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	6,617	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	1	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	4,569	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	277
Financing Receivable, Allowance for Credit Loss, Writeoff	11,187	277
Commercial Portfolio Segment [Member] | Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	220,541	178,416
Financing Receivable, Year One, Originated, Current Fiscal Year	1,613,494	1,686,143
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,116,496	2,424,042
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,987,215	1,628,250
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	866,130	559,052
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	346,738	364,737
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	370,548	247,184
Financing Receivable, before Allowance for Credit Loss, Total	6,521,163	7,087,824
Commercial Portfolio Segment [Member] | Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	502
Financing Receivable, Year One, Originated, Current Fiscal Year	88,433	4,248
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	6,385	25,474
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	127,114	26,208
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	12,312	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	6,870	29,772
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	10,366	6,014
Financing Receivable, before Allowance for Credit Loss, Total	251,480	92,218
Commercial Portfolio Segment [Member] | Commercial Real Estate Portfolio Segment [Member] | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	97,626	106,002
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	59,022	69,584
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	198,811	15,000
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	55,477	983
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	384	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	9,910	24,025
Financing Receivable, before Allowance for Credit Loss, Total	421,230	215,595
Commercial Portfolio Segment [Member] | Commercial Real Estate Portfolio Segment [Member] | Nonaccrual Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	11,949	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	4,757	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	30	6
Financing Receivable, before Allowance for Credit Loss, Total	16,735	6
Total consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	10,878	10,369
Financing Receivable, Revolving	814,906	720,563
Financing Receivable, Year One, Originated, Current Fiscal Year	1,432,794	1,582,862
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,378,053	2,620,341
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,275,714	2,204,564
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,710,096	1,428,395
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,206,880	660,909
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,022,053	1,809,685
Financing Receivable, before Allowance for Credit Loss, Total	10,840,496	11,027,319
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	6,649	4,937
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	438	818
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	3,212	4,630
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	5,790	823
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	755	279
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	205	105
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	659	1,187
Financing Receivable, Allowance for Credit Loss, Writeoff	17,709	12,779
Total consumer | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	9,071	8,824
Financing Receivable, Revolving	811,096	717,632
Financing Receivable, Year One, Originated, Current Fiscal Year	1,428,969	1,579,238
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,372,603	2,603,843
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,257,910	2,194,529
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,699,069	1,417,802
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,198,368	653,584
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,979,055	1,768,145
Financing Receivable, before Allowance for Credit Loss, Total	10,747,070	10,934,773
Total consumer | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	127	205
Financing Receivable, Revolving	1,207	1,043
Financing Receivable, Year One, Originated, Current Fiscal Year	381	628
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	704	1,936
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,083	208
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	185	49
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	110
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	484	441
Financing Receivable, before Allowance for Credit Loss, Total	4,045	4,416
Total consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	10
Financing Receivable, Revolving	2,418	1,656
Financing Receivable, Year One, Originated, Current Fiscal Year	594	500
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	327	166
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	77	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	207
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	24	26
Financing Receivable, before Allowance for Credit Loss, Total	3,440	2,556
Total consumer | Nonaccrual Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	1,679	1,330
Financing Receivable, Revolving	185	231
Financing Receivable, Year One, Originated, Current Fiscal Year	2,849	2,496
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,420	14,396
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	16,644	9,827
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	10,842	10,544
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	8,512	7,007
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	42,490	41,073
Financing Receivable, before Allowance for Credit Loss, Total	85,941	85,574
Total consumer | Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	175,539	354,236
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	509,647	1,627,070
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,590,679	2,119,836
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,653,482	1,424,583
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,204,049	654,675
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,914,144	1,684,490
Financing Receivable, before Allowance for Credit Loss, Total	7,047,541	7,864,891
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	0	2
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	134	32
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	125	42
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	101	148
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	153	5
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	515	723
Financing Receivable, Allowance for Credit Loss, Writeoff	1,029	952
Total consumer | Residential Mortgage [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	172,607	352,321
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	507,186	1,617,409
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,579,182	2,110,577
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,643,341	1,414,186
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,195,752	647,778
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,878,251	1,650,542
Financing Receivable, before Allowance for Credit Loss, Total	6,976,319	7,792,813
Total consumer | Residential Mortgage [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	95
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	162	57
Financing Receivable, before Allowance for Credit Loss, Total	162	152
Total consumer | Residential Mortgage [Member] | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	594	490
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	327	93
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	77	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	174
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	24	26
Financing Receivable, before Allowance for Credit Loss, Total	1,022	784
Total consumer | Residential Mortgage [Member] | Nonaccrual Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	2,338	1,425
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	2,134	9,567
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	11,420	9,259
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	10,141	10,397
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	8,297	6,628
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	35,708	33,865
Financing Receivable, before Allowance for Credit Loss, Total	70,038	71,142
Total consumer | Automobile Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	1,242,431	1,220,471
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	861,790	959,094
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	656,212	75,844
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	49,643	163
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	67	458
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	77	132
Financing Receivable, before Allowance for Credit Loss, Total	2,810,220	2,256,162
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	418	795
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	2,982	4,524
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	5,582	626
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	560	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	0	5
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	0	0
Financing Receivable, Allowance for Credit Loss, Writeoff	9,541	5,950
Total consumer | Automobile Loan [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	1,241,609	1,218,820
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	858,924	952,839
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	650,880	75,209
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	48,999	163
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	67	456
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	77	132
Financing Receivable, before Allowance for Credit Loss, Total	2,800,555	2,247,618
Total consumer | Automobile Loan [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	332	619
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	704	1,850
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,048	205
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	178	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	2,262	2,674
Total consumer | Automobile Loan [Member] | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan		0
Financing Receivable, Revolving		0
Financing Receivable, Year One, Originated, Current Fiscal Year		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year		73
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year		0
Financing Receivable, before Allowance for Credit Loss, Total		73
Total consumer | Automobile Loan [Member] | Nonaccrual Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	491	1,032
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	2,162	4,332
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	4,284	430
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	466	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	3
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	7,402	5,797
Total consumer | Home Equity Loan
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	10,568	10,195
Financing Receivable, Revolving	570,051	521,434
Financing Receivable, Year One, Originated, Current Fiscal Year	467	1,717
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,788	30,445
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	26,305	6,217
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	5,520	2,500
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	2,180	5,308
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	57,941	60,907
Financing Receivable, before Allowance for Credit Loss, Total	664,252	628,526
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	93	53
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	0	21
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	0	3
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	9	31
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	19	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	10	22
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	85	294
Financing Receivable, Allowance for Credit Loss, Writeoff	216	424
Total consumer | Home Equity Loan | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	8,764	8,703
Financing Receivable, Revolving	569,866	521,000
Financing Receivable, Year One, Originated, Current Fiscal Year	411	1,678
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,684	29,863
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	25,372	6,084
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	5,289	2,327
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,965	4,891
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	50,841	53,350
Financing Receivable, before Allowance for Credit Loss, Total	655,429	619,192
Total consumer | Home Equity Loan | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	127	179
Financing Receivable, Revolving	81	200
Financing Receivable, Year One, Originated, Current Fiscal Year	41	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	87
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	29
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	15
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	323	378
Financing Receivable, before Allowance for Credit Loss, Total	445	708
Total consumer | Home Equity Loan | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan		10
Financing Receivable, Revolving		75
Financing Receivable, Year One, Originated, Current Fiscal Year		10
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year		33
Financing Receivable, Originated, More than Five Years before Current Fiscal Year		0
Financing Receivable, before Allowance for Credit Loss, Total		118
Total consumer | Home Equity Loan | Nonaccrual Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	1,677	1,302
Financing Receivable, Revolving	104	160
Financing Receivable, Year One, Originated, Current Fiscal Year	15	29
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	103	495
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	933	132
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	231	144
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	215	368
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	6,778	7,180
Financing Receivable, before Allowance for Credit Loss, Total	8,378	8,508
Total consumer | Other Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	310	174
Financing Receivable, Revolving	244,855	199,129
Financing Receivable, Year One, Originated, Current Fiscal Year	14,356	6,438
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,829	3,733
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,518	2,668
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,451	1,149
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	584	468
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	49,891	64,156
Financing Receivable, before Allowance for Credit Loss, Total	318,483	277,740
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	6,555	4,884
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	20	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	96	72
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	75	124
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	75	131
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	42	72
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	59	170
Financing Receivable, Allowance for Credit Loss, Writeoff	6,922	5,453
Total consumer | Other Consumer [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	308	121
Financing Receivable, Revolving	241,230	196,632
Financing Receivable, Year One, Originated, Current Fiscal Year	14,343	6,419
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,808	3,732
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,475	2,658
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,440	1,127
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	584	460
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	49,886	64,121
Financing Receivable, before Allowance for Credit Loss, Total	314,767	275,149
Total consumer | Other Consumer [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	26
Financing Receivable, Revolving	1,125	843
Financing Receivable, Year One, Originated, Current Fiscal Year	8	9
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	36	3
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	7	20
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	6
Financing Receivable, before Allowance for Credit Loss, Total	1,176	881
Total consumer | Other Consumer [Member] | Substandard
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	0	0
Financing Receivable, Revolving	2,418	1,582
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	2,418	1,582
Total consumer | Other Consumer [Member] | Nonaccrual Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Revolving, Converted to Term Loan	2	27
Financing Receivable, Revolving	81	71
Financing Receivable, Year One, Originated, Current Fiscal Year	5	10
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	21	1
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	7	6
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	4	2
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	8
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4	29
Financing Receivable, before Allowance for Credit Loss, Total	$ 122	$ 128