Loans, Credit Quality Indicator by Vintage Year (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	$ 13,659	$ 18,966
Financing Receivable, Revolving	2,924,763	2,712,389
Financing Receivable, Originated in Current Fiscal Year	4,189,009	5,363,890
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	4,620,840	8,307,956
Financing Receivable, Originated Two Years before Latest Fiscal Year	7,679,638	6,039,862
Financing Receivable, Originated Three Years before Latest Fiscal Year	4,870,319	2,556,071
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,153,247	1,578,023
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	3,553,082	2,658,026
Financing Receivable, before Allowance for Credit Loss, Total	29,990,897	29,216,218
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	8,001	9,068
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	277	1,535
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	13,052	14,224
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	12,720	26,093
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	28,060	6,237
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	166	130
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	369	1,482
Financing Receivable, Allowance for Credit Loss, Writeoff	62,645	58,768
Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	7,786	10,204
Financing Receivable, Revolving	2,816,040	2,604,690
Financing Receivable, Originated in Current Fiscal Year	3,947,319	5,206,038
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	4,513,161	8,093,062
Financing Receivable, Originated Two Years before Latest Fiscal Year	7,433,101	5,886,359
Financing Receivable, Originated Three Years before Latest Fiscal Year	4,619,542	2,511,435
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,131,175	1,537,747
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	3,484,288	2,556,674
Financing Receivable, before Allowance for Credit Loss, Total	28,944,626	28,396,005
Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	234	205
Financing Receivable, Revolving	48,036	23,595
Financing Receivable, Originated in Current Fiscal Year	64,879	8,893
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	21,101	74,020
Financing Receivable, Originated Two Years before Latest Fiscal Year	42,202	41,091
Financing Receivable, Originated Three Years before Latest Fiscal Year	38,536	6,213
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,204	29,882
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	9,409	33,089
Financing Receivable, before Allowance for Credit Loss, Total	229,367	216,784
Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	926	814
Financing Receivable, Revolving	60,323	83,872
Financing Receivable, Originated in Current Fiscal Year	145,325	131,753
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	79,020	112,289
Financing Receivable, Originated Two Years before Latest Fiscal Year	178,805	68,695
Financing Receivable, Originated Three Years before Latest Fiscal Year	200,791	27,253
Financing Receivable, Originated Four Years before Latest Fiscal Year	8,342	3,387
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	15,821	27,183
Financing Receivable, before Allowance for Credit Loss, Total	688,428	454,432
Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	4,713	7,744
Financing Receivable, Revolving	365	231
Financing Receivable, Originated in Current Fiscal Year	31,486	17,206
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	7,557	28,584
Financing Receivable, Originated Two Years before Latest Fiscal Year	25,529	43,718
Financing Receivable, Originated Three Years before Latest Fiscal Year	11,450	11,170
Financing Receivable, Originated Four Years before Latest Fiscal Year	8,526	7,007
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	43,563	41,080
Financing Receivable, before Allowance for Credit Loss, Total	128,476	148,997
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	5,107	8,598
Financing Receivable, Revolving	2,175,473	1,991,827
Financing Receivable, Originated in Current Fiscal Year	3,095,065	3,781,028
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	3,176,431	5,687,614
Financing Receivable, Originated Two Years before Latest Fiscal Year	5,248,523	3,835,298
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,775,545	1,127,677
Financing Receivable, Originated Four Years before Latest Fiscal Year	807,441	917,114
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,286,204	848,341
Financing Receivable, before Allowance for Credit Loss, Total	18,564,683	18,188,898
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	3,079	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	10,596	9,594
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	8,162	25,270
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	27,498	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	49,469	45,989
Commercial Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	574	1,380
Financing Receivable, Revolving	2,069,460	1,887,058
Financing Receivable, Originated in Current Fiscal Year	2,856,377	3,626,800
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	3,083,645	5,489,219
Financing Receivable, Originated Two Years before Latest Fiscal Year	5,019,626	3,691,830
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,535,329	1,093,633
Financing Receivable, Originated Four Years before Latest Fiscal Year	793,978	884,162
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,261,782	788,529
Financing Receivable, before Allowance for Credit Loss, Total	17,620,197	17,461,232
Commercial Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	47,171	22,552
Financing Receivable, Originated in Current Fiscal Year	64,696	8,265
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	20,565	72,084
Financing Receivable, Originated Two Years before Latest Fiscal Year	41,348	40,882
Financing Receivable, Originated Three Years before Latest Fiscal Year	38,425	6,164
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,121	29,772
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	8,810	32,648
Financing Receivable, before Allowance for Credit Loss, Total	226,136	212,368
Commercial Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	926	804
Financing Receivable, Revolving	58,730	82,216
Financing Receivable, Originated in Current Fiscal Year	144,727	131,253
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	68,867	112,123
Financing Receivable, Originated Two Years before Latest Fiscal Year	178,714	68,695
Financing Receivable, Originated Three Years before Latest Fiscal Year	200,791	27,253
Financing Receivable, Originated Four Years before Latest Fiscal Year	8,342	3,180
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	15,597	27,157
Financing Receivable, before Allowance for Credit Loss, Total	675,768	451,876
Commercial Portfolio Segment [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	3,608	6,414
Financing Receivable, Revolving	112	0
Financing Receivable, Originated in Current Fiscal Year	29,265	14,710
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	3,354	14,188
Financing Receivable, Originated Two Years before Latest Fiscal Year	8,835	33,891
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,000	627
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	15	6
Financing Receivable, before Allowance for Credit Loss, Total	42,582	63,422
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	5,107	8,598
Financing Receivable, Revolving	2,004,038	1,796,951
Financing Receivable, Originated in Current Fiscal Year	1,727,655	1,764,466
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,608,114	2,977,719
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,625,714	1,914,057
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,357,467	419,934
Financing Receivable, Originated Four Years before Latest Fiscal Year	311,740	383,789
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	624,172	474,638
Financing Receivable, before Allowance for Credit Loss, Total	10,258,899	9,731,555
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	3,079	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	10,595	9,594
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	8,162	25,270
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	22,929	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	44,896	45,687
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	574	1,380
Financing Receivable, Revolving	1,899,076	1,693,249
Financing Receivable, Originated in Current Fiscal Year	1,655,577	1,736,617
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,577,257	2,877,173
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,578,620	1,824,362
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,225,619	398,046
Financing Receivable, Originated Four Years before Latest Fiscal Year	307,575	383,695
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	623,877	449,006
Financing Receivable, before Allowance for Credit Loss, Total	9,867,600	9,362,149
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	47,171	21,779
Financing Receivable, Originated in Current Fiscal Year	2,605	4,017
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	13,700	46,610
Financing Receivable, Originated Two Years before Latest Fiscal Year	7,814	8,525
Financing Receivable, Originated Three Years before Latest Fiscal Year	24,638	3,529
Financing Receivable, Originated Four Years before Latest Fiscal Year	636	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	131	25,341
Financing Receivable, before Allowance for Credit Loss, Total	96,696	109,801
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	926	804
Financing Receivable, Revolving	57,680	81,924
Financing Receivable, Originated in Current Fiscal Year	66,904	10,515
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	15,304	39,748
Financing Receivable, Originated Two Years before Latest Fiscal Year	30,444	47,279
Financing Receivable, Originated Three Years before Latest Fiscal Year	106,210	17,732
Financing Receivable, Originated Four Years before Latest Fiscal Year	3,529	94
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	163	291
Financing Receivable, before Allowance for Credit Loss, Total	280,234	197,582
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	3,608	6,414
Financing Receivable, Revolving	112	0
Financing Receivable, Originated in Current Fiscal Year	2,569	13,317
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,853	14,188
Financing Receivable, Originated Two Years before Latest Fiscal Year	8,835	33,891
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,000	627
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	14,369	62,022
Commercial Portfolio Segment [Member] | Commercial Real Estate Owner Occupied Portfolio [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	16,486	15,957
Financing Receivable, Originated in Current Fiscal Year	165,272	220,168
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	205,405	190,794
Financing Receivable, Originated Two Years before Latest Fiscal Year	177,708	251,783
Financing Receivable, Originated Three Years before Latest Fiscal Year	233,433	147,708
Financing Receivable, Originated Four Years before Latest Fiscal Year	119,763	138,816
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	202,781	96,473
Financing Receivable, before Allowance for Credit Loss, Total	1,120,849	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, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	15,435	15,393
Financing Receivable, Originated in Current Fiscal Year	154,476	204,039
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	190,452	188,003
Financing Receivable, Originated Two Years before Latest Fiscal Year	176,083	239,218
Financing Receivable, Originated Three Years before Latest Fiscal Year	227,232	136,535
Financing Receivable, Originated Four Years before Latest Fiscal Year	114,950	135,730
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	199,980	92,339
Financing Receivable, before Allowance for Credit Loss, Total	1,078,609	1,011,259
Commercial Portfolio Segment [Member] | Commercial Real Estate Owner Occupied Portfolio [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	271
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	6,150
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,439	2,635
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	1,293
Financing Receivable, before Allowance for Credit Loss, Total	1,439	10,349
Commercial Portfolio Segment [Member] | Commercial Real Estate Owner Occupied Portfolio [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	1,051	292
Financing Receivable, Originated in Current Fiscal Year	3,013	14,735
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	13,451	2,791
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,625	6,416
Financing Receivable, Originated Three Years before Latest Fiscal Year	4,762	8,537
Financing Receivable, Originated Four Years before Latest Fiscal Year	4,813	3,086
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,801	2,841
Financing Receivable, before Allowance for Credit Loss, Total	31,516	38,699
Commercial Portfolio Segment [Member] | Commercial Real Estate Owner Occupied Portfolio [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	7,784	1,394
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,501	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	9,285	1,394
Commercial Portfolio Segment [Member] | Commercial And Business Lending [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	5,107	8,598
Financing Receivable, Revolving	2,020,524	1,812,909
Financing Receivable, Originated in Current Fiscal Year	1,892,928	1,984,635
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,813,519	3,168,514
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,803,422	2,165,840
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,590,900	567,642
Financing Receivable, Originated Four Years before Latest Fiscal Year	431,503	522,606
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	826,952	571,111
Financing Receivable, before Allowance for Credit Loss, Total	11,379,748	10,793,255
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	3,079	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	10,595	9,594
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	8,162	25,270
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	22,929	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	44,899	45,713
Commercial Portfolio Segment [Member] | Commercial And Business Lending [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	574	1,380
Financing Receivable, Revolving	1,914,511	1,708,642
Financing Receivable, Originated in Current Fiscal Year	1,810,053	1,940,657
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,767,709	3,065,177
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,754,703	2,063,580
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,452,850	534,581
Financing Receivable, Originated Four Years before Latest Fiscal Year	422,525	519,426
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	823,857	541,345
Financing Receivable, before Allowance for Credit Loss, Total	10,946,209	10,373,408
Commercial Portfolio Segment [Member] | Commercial And Business Lending [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	47,171	22,050
Financing Receivable, Originated in Current Fiscal Year	2,605	4,017
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	13,700	46,610
Financing Receivable, Originated Two Years before Latest Fiscal Year	7,814	14,675
Financing Receivable, Originated Three Years before Latest Fiscal Year	26,078	6,164
Financing Receivable, Originated Four Years before Latest Fiscal Year	636	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	131	26,634
Financing Receivable, before Allowance for Credit Loss, Total	98,135	120,150
Commercial Portfolio Segment [Member] | Commercial And Business Lending [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	926	804
Financing Receivable, Revolving	58,730	82,216
Financing Receivable, Originated in Current Fiscal Year	69,916	25,250
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	28,756	42,539
Financing Receivable, Originated Two Years before Latest Fiscal Year	32,069	53,695
Financing Receivable, Originated Three Years before Latest Fiscal Year	110,972	26,269
Financing Receivable, Originated Four Years before Latest Fiscal Year	8,342	3,180
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,964	3,132
Financing Receivable, before Allowance for Credit Loss, Total	311,750	236,281
Commercial Portfolio Segment [Member] | Commercial And Business Lending [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	3,608	6,414
Financing Receivable, Revolving	112	0
Financing Receivable, Originated in Current Fiscal Year	10,353	14,710
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	3,354	14,188
Financing Receivable, Originated Two Years before Latest Fiscal Year	8,835	33,891
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,000	627
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	23,654	63,416
Commercial Portfolio Segment [Member] | Commercial Real Estate Investor Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	126,415	155,611
Financing Receivable, Originated in Current Fiscal Year	1,018,348	1,374,116
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	925,136	1,342,492
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,335,356	1,121,633
Financing Receivable, Originated Three Years before Latest Fiscal Year	863,297	472,355
Financing Receivable, Originated Four Years before Latest Fiscal Year	350,693	388,768
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	451,390	269,269
Financing Receivable, before Allowance for Credit Loss, Total	5,070,635	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	0	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	4,570	252
Commercial Portfolio Segment [Member] | Commercial Real Estate Investor Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	126,415	155,109
Financing Receivable, Originated in Current Fiscal Year	892,694	1,263,866
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	878,160	1,247,434
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,245,948	1,080,425
Financing Receivable, Originated Three Years before Latest Fiscal Year	832,555	471,371
Financing Receivable, Originated Four Years before Latest Fiscal Year	346,208	358,996
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	430,094	239,230
Financing Receivable, before Allowance for Credit Loss, Total	4,752,074	4,816,433
Commercial Portfolio Segment [Member] | Commercial Real Estate Investor Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	502
Financing Receivable, Originated in Current Fiscal Year	43,089	4,248
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	6,865	25,474
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,453	26,208
Financing Receivable, Originated Three Years before Latest Fiscal Year	12,347	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	4,485	29,772
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	8,664	6,014
Financing Receivable, before Allowance for Credit Loss, Total	76,903	92,218
Commercial Portfolio Segment [Member] | Commercial Real Estate Investor Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	63,652	106,002
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	40,111	69,584
Financing Receivable, Originated Two Years before Latest Fiscal Year	87,955	15,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	18,395	983
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	12,632	24,025
Financing Receivable, before Allowance for Credit Loss, Total	222,745	215,595
Commercial Portfolio Segment [Member] | Commercial Real Estate Investor Portfolio Segment [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0
Financing Receivable, Revolving	0
Financing Receivable, Originated in Current Fiscal Year	18,913
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, before Allowance for Credit Loss, Total	18,913
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	28,533	23,307
Financing Receivable, Originated in Current Fiscal Year	183,790	422,277
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	437,777	1,176,608
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,109,745	547,825
Financing Receivable, Originated Three Years before Latest Fiscal Year	321,348	87,680
Financing Receivable, Originated Four Years before Latest Fiscal Year	25,245	5,740
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	7,862	7,960
Financing Receivable, before Allowance for Credit Loss, Total	2,114,300	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, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	28,533	23,307
Financing Receivable, Originated in Current Fiscal Year	153,630	422,277
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	437,777	1,176,608
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,018,975	547,825
Financing Receivable, Originated Three Years before Latest Fiscal Year	249,924	87,680
Financing Receivable, Originated Four Years before Latest Fiscal Year	25,245	5,740
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	7,831	7,954
Financing Receivable, before Allowance for Credit Loss, Total	1,921,914	2,271,392
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0
Financing Receivable, Revolving	0
Financing Receivable, Originated in Current Fiscal Year	19,002
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	32,080
Financing Receivable, Originated Three Years before Latest Fiscal Year	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	16
Financing Receivable, before Allowance for Credit Loss, Total	51,098
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0
Financing Receivable, Revolving	0
Financing Receivable, Originated in Current Fiscal Year	11,158
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	58,690
Financing Receivable, Originated Three Years before Latest Fiscal Year	71,424
Financing Receivable, Originated Four Years before Latest Fiscal Year	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0
Financing Receivable, before Allowance for Credit Loss, Total	141,273
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	15	6
Financing Receivable, before Allowance for Credit Loss, Total	15	6
Commercial Portfolio Segment [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	154,948	178,918
Financing Receivable, Originated in Current Fiscal Year	1,202,138	1,796,393
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,362,912	2,519,100
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,445,101	1,669,458
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,184,645	560,035
Financing Receivable, Originated Four Years before Latest Fiscal Year	375,938	394,508
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	459,252	277,230
Financing Receivable, before Allowance for Credit Loss, Total	7,184,934	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	0	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	4,570	277
Commercial Portfolio Segment [Member] | Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	154,948	178,416
Financing Receivable, Originated in Current Fiscal Year	1,046,323	1,686,143
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,315,936	2,424,042
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,264,923	1,628,250
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,082,478	559,052
Financing Receivable, Originated Four Years before Latest Fiscal Year	371,453	364,737
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	437,925	247,184
Financing Receivable, before Allowance for Credit Loss, Total	6,673,987	7,087,824
Commercial Portfolio Segment [Member] | Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	502
Financing Receivable, Originated in Current Fiscal Year	62,091	4,248
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	6,865	25,474
Financing Receivable, Originated Two Years before Latest Fiscal Year	33,533	26,208
Financing Receivable, Originated Three Years before Latest Fiscal Year	12,347	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	4,485	29,772
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	8,679	6,014
Financing Receivable, before Allowance for Credit Loss, Total	128,001	92,218
Commercial Portfolio Segment [Member] | Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	74,810	106,002
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	40,111	69,584
Financing Receivable, Originated Two Years before Latest Fiscal Year	146,645	15,000
Financing Receivable, Originated Three Years before Latest Fiscal Year	89,820	983
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	12,632	24,025
Financing Receivable, before Allowance for Credit Loss, Total	364,018	215,595
Commercial Portfolio Segment [Member] | Commercial Real Estate Portfolio Segment [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	18,913	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	15	6
Financing Receivable, before Allowance for Credit Loss, Total	18,928	6
Consumer Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	8,552	10,369
Financing Receivable, Revolving	749,291	720,563
Financing Receivable, Originated in Current Fiscal Year	1,093,943	1,582,862
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,444,409	2,620,341
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,431,114	2,204,564
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,094,773	1,428,395
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,345,806	660,909
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,266,877	1,809,685
Financing Receivable, before Allowance for Credit Loss, Total	11,426,214	11,027,319
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	4,922	4,937
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	149	818
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	2,456	4,630
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	4,558	823
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	562	279
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	163	105
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	366	1,187
Financing Receivable, Allowance for Credit Loss, Writeoff	13,176	12,779
Consumer Loan [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	7,213	8,824
Financing Receivable, Revolving	746,580	717,632
Financing Receivable, Originated in Current Fiscal Year	1,090,942	1,579,238
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,429,516	2,603,843
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,413,475	2,194,529
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,084,213	1,417,802
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,337,197	653,584
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,222,505	1,768,145
Financing Receivable, before Allowance for Credit Loss, Total	11,324,429	10,934,773
Consumer Loan [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	234	205
Financing Receivable, Revolving	865	1,043
Financing Receivable, Originated in Current Fiscal Year	183	628
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	536	1,936
Financing Receivable, Originated Two Years before Latest Fiscal Year	854	208
Financing Receivable, Originated Three Years before Latest Fiscal Year	111	49
Financing Receivable, Originated Four Years before Latest Fiscal Year	83	110
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	599	441
Financing Receivable, before Allowance for Credit Loss, Total	3,231	4,416
Consumer Loan [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	10
Financing Receivable, Revolving	1,593	1,656
Financing Receivable, Originated in Current Fiscal Year	598	500
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	10,154	166
Financing Receivable, Originated Two Years before Latest Fiscal Year	91	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	207
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	225	26
Financing Receivable, before Allowance for Credit Loss, Total	12,660	2,556
Consumer Loan [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	1,105	1,330
Financing Receivable, Revolving	253	231
Financing Receivable, Originated in Current Fiscal Year	2,220	2,496
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	4,203	14,396
Financing Receivable, Originated Two Years before Latest Fiscal Year	16,694	9,827
Financing Receivable, Originated Three Years before Latest Fiscal Year	10,450	10,544
Financing Receivable, Originated Four Years before Latest Fiscal Year	8,526	7,007
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	43,548	41,073
Financing Receivable, before Allowance for Credit Loss, Total	85,894	85,574
Consumer Loan [Member] | Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	108,379	354,236
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	489,260	1,627,070
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,674,120	2,119,836
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,032,491	1,424,583
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,342,965	654,675
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,155,869	1,684,490
Financing Receivable, before Allowance for Credit Loss, Total	7,803,083	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	171	32
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	94	42
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	42	148
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	112	5
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	283	723
Financing Receivable, Allowance for Credit Loss, Writeoff	703	952
Consumer Loan [Member] | Residential Mortgage [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	105,940	352,321
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	476,946	1,617,409
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,662,813	2,110,577
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,022,819	1,414,186
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,334,633	647,778
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,118,612	1,650,542
Financing Receivable, before Allowance for Credit Loss, Total	7,721,764	7,792,813
Consumer Loan [Member] | Residential Mortgage [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	38	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	95
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	115	57
Financing Receivable, before Allowance for Credit Loss, Total	153	152
Consumer Loan [Member] | Residential Mortgage [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	598	490
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	10,147	93
Financing Receivable, Originated Two Years before Latest Fiscal Year	91	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	174
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	193	26
Financing Receivable, before Allowance for Credit Loss, Total	11,029	784
Consumer Loan [Member] | Residential Mortgage [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	1,841	1,425
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,166	9,567
Financing Receivable, Originated Two Years before Latest Fiscal Year	11,179	9,259
Financing Receivable, Originated Three Years before Latest Fiscal Year	9,672	10,397
Financing Receivable, Originated Four Years before Latest Fiscal Year	8,332	6,628
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	36,948	33,865
Financing Receivable, before Allowance for Credit Loss, Total	70,138	71,142
Consumer Loan [Member] | Automobile Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	976,042	1,220,471
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	949,310	959,094
Financing Receivable, Originated Two Years before Latest Fiscal Year	727,641	75,844
Financing Receivable, Originated Three Years before Latest Fiscal Year	55,733	163
Financing Receivable, Originated Four Years before Latest Fiscal Year	82	458
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	138	132
Financing Receivable, before Allowance for Credit Loss, Total	2,708,946	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	129	795
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	2,235	4,524
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	4,393	626
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	433	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	7,189	5,950
Consumer Loan [Member] | Automobile Loan [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	975,499	1,218,820
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	946,876	952,839
Financing Receivable, Originated Two Years before Latest Fiscal Year	722,152	75,209
Financing Receivable, Originated Three Years before Latest Fiscal Year	55,145	163
Financing Receivable, Originated Four Years before Latest Fiscal Year	82	456
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	138	132
Financing Receivable, before Allowance for Credit Loss, Total	2,699,892	2,247,618
Consumer Loan [Member] | Automobile Loan [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	183	619
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	519	1,850
Financing Receivable, Originated Two Years before Latest Fiscal Year	812	205
Financing Receivable, Originated Three Years before Latest Fiscal Year	85	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	1,598	2,674
Consumer Loan [Member] | Automobile Loan [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan		0
Financing Receivable, Revolving		0
Financing Receivable, Originated in Current Fiscal Year		0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year		73
Financing Receivable, Originated Two Years before Latest Fiscal Year		0
Financing Receivable, Originated Three Years before Latest Fiscal Year		0
Financing Receivable, Originated Four Years before Latest Fiscal Year		0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year		0
Financing Receivable, before Allowance for Credit Loss, Total		73
Consumer Loan [Member] | Automobile Loan [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	360	1,032
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,915	4,332
Financing Receivable, Originated Two Years before Latest Fiscal Year	4,677	430
Financing Receivable, Originated Three Years before Latest Fiscal Year	503	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	3
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	7,456	5,797
Consumer Loan [Member] | Home Equity Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	8,481	10,195
Financing Receivable, Revolving	553,938	521,434
Financing Receivable, Originated in Current Fiscal Year	743	1,717
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,851	30,445
Financing Receivable, Originated Two Years before Latest Fiscal Year	27,256	6,217
Financing Receivable, Originated Three Years before Latest Fiscal Year	5,542	2,500
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,221	5,308
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	59,829	60,907
Financing Receivable, before Allowance for Credit Loss, Total	651,379	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	37	294
Financing Receivable, Allowance for Credit Loss, Writeoff	168	424
Consumer Loan [Member] | Home Equity Loan [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	7,142	8,703
Financing Receivable, Revolving	553,676	521,000
Financing Receivable, Originated in Current Fiscal Year	724	1,678
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,730	29,863
Financing Receivable, Originated Two Years before Latest Fiscal Year	26,429	6,084
Financing Receivable, Originated Three Years before Latest Fiscal Year	5,250	2,327
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,944	4,891
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	52,717	53,350
Financing Receivable, before Allowance for Credit Loss, Total	642,471	619,192
Consumer Loan [Member] | Home Equity Loan [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	234	179
Financing Receivable, Revolving	53	200
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	87
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	21	29
Financing Receivable, Originated Four Years before Latest Fiscal Year	83	15
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	483	378
Financing Receivable, before Allowance for Credit Loss, Total	639	708
Consumer Loan [Member] | Home Equity Loan [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	10
Financing Receivable, Revolving	0	75
Financing Receivable, Originated in Current Fiscal Year	0	10
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	7	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	33
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	32	0
Financing Receivable, before Allowance for Credit Loss, Total	38	118
Consumer Loan [Member] | Home Equity Loan [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	1,105	1,302
Financing Receivable, Revolving	209	160
Financing Receivable, Originated in Current Fiscal Year	19	29
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	114	495
Financing Receivable, Originated Two Years before Latest Fiscal Year	827	132
Financing Receivable, Originated Three Years before Latest Fiscal Year	271	144
Financing Receivable, Originated Four Years before Latest Fiscal Year	194	368
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	6,598	7,180
Financing Receivable, before Allowance for Credit Loss, Total	8,231	8,508
Consumer Loan [Member] | Other Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	71	174
Financing Receivable, Revolving	195,353	199,129
Financing Receivable, Originated in Current Fiscal Year	8,779	6,438
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	3,989	3,733
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,097	2,668
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,007	1,149
Financing Receivable, Originated Four Years before Latest Fiscal Year	538	468
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	51,042	64,156
Financing Receivable, before Allowance for Credit Loss, Total	262,806	277,740
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	4,829	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	50	72
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	63	124
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	68	131
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	41	72
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	46	170
Financing Receivable, Allowance for Credit Loss, Writeoff	5,116	5,453
Consumer Loan [Member] | Other Consumer [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	71	121
Financing Receivable, Revolving	192,905	196,632
Financing Receivable, Originated in Current Fiscal Year	8,779	6,419
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	3,964	3,732
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,081	2,658
Financing Receivable, Originated Three Years before Latest Fiscal Year	999	1,127
Financing Receivable, Originated Four Years before Latest Fiscal Year	537	460
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	51,039	64,121
Financing Receivable, before Allowance for Credit Loss, Total	260,303	275,149
Consumer Loan [Member] | Other Consumer [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	26
Financing Receivable, Revolving	812	843
Financing Receivable, Originated in Current Fiscal Year	0	9
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	17	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	5	3
Financing Receivable, Originated Three Years before Latest Fiscal Year	5	20
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1	6
Financing Receivable, before Allowance for Credit Loss, Total	840	881
Consumer Loan [Member] | Other Consumer [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	1,593	1,582
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	1,593	1,582
Consumer Loan [Member] | Other Consumer [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	27
Financing Receivable, Revolving	44	71
Financing Receivable, Originated in Current Fiscal Year	0	10
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	8	1
Financing Receivable, Originated Two Years before Latest Fiscal Year	12	6
Financing Receivable, Originated Three Years before Latest Fiscal Year	4	2
Financing Receivable, Originated Four Years before Latest Fiscal Year	1	8
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2	29
Financing Receivable, before Allowance for Credit Loss, Total	$ 70	$ 128