Loans, Credit Quality Indicator by Vintage Year (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	$ 20,641	$ 13,183
Financing Receivable, Revolving	3,182,874	2,981,010
Financing Receivable, Originated in Current Fiscal Year	5,884,707	6,227,743
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	5,555,879	4,280,254
Financing Receivable, Originated Two Years before Latest Fiscal Year	3,474,927	7,136,344
Financing Receivable, Originated Three Years before Latest Fiscal Year	5,306,090	4,086,483
Financing Receivable, Originated Four Years before Latest Fiscal Year	3,172,601	1,945,455
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	4,374,887	3,111,296
Financing Receivable, before Allowance for Credit Loss, Total	30,951,964	29,768,586
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	10,225	11,082
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	76	7,183
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	10,258	14,697
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	6,060	14,300
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	19,348	28,283
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	963	209
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	387	662
Financing Receivable, Allowance for Credit Loss, Writeoff	47,317	76,415
Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	16,863	9,320
Financing Receivable, Revolving	3,057,849	2,887,188
Financing Receivable, Originated in Current Fiscal Year	5,699,600	5,928,329
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	5,345,110	4,178,435
Financing Receivable, Originated Two Years before Latest Fiscal Year	3,298,661	6,680,015
Financing Receivable, Originated Three Years before Latest Fiscal Year	4,606,252	3,859,616
Financing Receivable, Originated Four Years before Latest Fiscal Year	2,993,273	1,922,456
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	4,308,379	3,041,886
Financing Receivable, before Allowance for Credit Loss, Total	29,309,124	28,497,925
Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	63	127
Financing Receivable, Revolving	26,257	50,036
Financing Receivable, Originated in Current Fiscal Year	10,437	92,851
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	48,712	12,396
Financing Receivable, Originated Two Years before Latest Fiscal Year	78,131	191,587
Financing Receivable, Originated Three Years before Latest Fiscal Year	223,722	28,101
Financing Receivable, Originated Four Years before Latest Fiscal Year	17,214	7,385
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	7,404	13,701
Financing Receivable, before Allowance for Credit Loss, Total	411,877	396,057
Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	1,006	2,015
Financing Receivable, Revolving	98,614	43,602
Financing Receivable, Originated in Current Fiscal Year	170,967	190,993
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	150,401	79,035
Financing Receivable, Originated Two Years before Latest Fiscal Year	90,190	235,110
Financing Receivable, Originated Three Years before Latest Fiscal Year	446,683	182,313
Financing Receivable, Originated Four Years before Latest Fiscal Year	149,978	7,103
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	17,951	13,189
Financing Receivable, before Allowance for Credit Loss, Total	1,124,785	751,344
Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	2,709	1,721
Financing Receivable, Revolving	154	185
Financing Receivable, Originated in Current Fiscal Year	3,703	15,570
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	11,657	10,389
Financing Receivable, Originated Two Years before Latest Fiscal Year	7,944	29,632
Financing Receivable, Originated Three Years before Latest Fiscal Year	29,435	16,453
Financing Receivable, Originated Four Years before Latest Fiscal Year	12,135	8,512
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	41,153	42,519
Financing Receivable, before Allowance for Credit Loss, Total	106,179	123,260
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	9,785	2,306
Financing Receivable, Revolving	2,332,032	2,166,104
Financing Receivable, Originated in Current Fiscal Year	4,696,999	4,794,949
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	4,387,900	2,902,201
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,336,315	4,860,631
Financing Receivable, Originated Three Years before Latest Fiscal Year	3,297,579	2,376,387
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,595,268	738,576
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,399,704	1,089,243
Financing Receivable, before Allowance for Credit Loss, Total	20,045,797	18,928,090
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	4,015	4,433
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	0	6,745
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	8,936	11,485
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	3,697	8,510
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	16,465	27,528
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	379	3
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	0	3
Financing Receivable, Allowance for Credit Loss, Writeoff	33,492	58,707
Commercial Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	7,214	248
Financing Receivable, Revolving	2,210,472	2,076,092
Financing Receivable, Originated in Current Fiscal Year	4,515,033	4,499,360
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	4,181,532	2,805,832
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,168,956	4,422,105
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,616,167	2,160,547
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,428,465	724,088
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,374,357	1,062,831
Financing Receivable, before Allowance for Credit Loss, Total	18,494,982	17,750,855
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	25,132	48,829
Financing Receivable, Originated in Current Fiscal Year	10,263	92,469
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	48,249	11,692
Financing Receivable, Originated Two Years before Latest Fiscal Year	77,436	190,504
Financing Receivable, Originated Three Years before Latest Fiscal Year	223,008	27,916
Financing Receivable, Originated Four Years before Latest Fiscal Year	17,128	7,385
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	7,251	13,217
Financing Receivable, before Allowance for Credit Loss, Total	408,467	392,012
Commercial Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	1,006	2,015
Financing Receivable, Revolving	96,428	41,183
Financing Receivable, Originated in Current Fiscal Year	170,967	190,399
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	150,401	78,708
Financing Receivable, Originated Two Years before Latest Fiscal Year	89,890	235,033
Financing Receivable, Originated Three Years before Latest Fiscal Year	446,553	182,313
Financing Receivable, Originated Four Years before Latest Fiscal Year	149,675	7,103
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	17,951	13,165
Financing Receivable, before Allowance for Credit Loss, Total	1,121,865	747,903
Commercial Portfolio Segment [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	1,564	42
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	736	12,721
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	7,718	5,969
Financing Receivable, Originated Two Years before Latest Fiscal Year	33	12,988
Financing Receivable, Originated Three Years before Latest Fiscal Year	11,851	5,612
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	145	30
Financing Receivable, before Allowance for Credit Loss, Total	20,484	37,320
Commercial Portfolio Segment [Member] | Commercial and Industrial Sector
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	2,600	2,306
Financing Receivable, Revolving	2,124,259	1,930,860
Financing Receivable, Originated in Current Fiscal Year	2,891,956	2,752,002
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,444,857	1,533,233
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,235,142	2,365,866
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,508,702	1,214,154
Financing Receivable, Originated Four Years before Latest Fiscal Year	814,076	267,148
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	548,660	510,480
Financing Receivable, before Allowance for Credit Loss, Total	11,567,651	10,573,741
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	4,015	4,433
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	0	128
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	580	11,484
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	3,513	8,510
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	3,799	22,959
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	379	3
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	0	0
Financing Receivable, Allowance for Credit Loss, Writeoff	12,286	47,517
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	29	248
Financing Receivable, Revolving	2,013,497	1,841,790
Financing Receivable, Originated in Current Fiscal Year	2,865,198	2,656,953
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,358,248	1,514,277
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,201,594	2,254,758
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,373,375	1,080,180
Financing Receivable, Originated Four Years before Latest Fiscal Year	721,128	263,286
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	546,192	510,301
Financing Receivable, before Allowance for Credit Loss, Total	11,079,231	10,121,545
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	14,967	48,829
Financing Receivable, Originated in Current Fiscal Year	3,029	4,037
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	14,700	4,810
Financing Receivable, Originated Two Years before Latest Fiscal Year	14,779	63,390
Financing Receivable, Originated Three Years before Latest Fiscal Year	6,768	6,984
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,231	515
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	363	48
Financing Receivable, before Allowance for Credit Loss, Total	59,838	128,613
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	1,006	2,015
Financing Receivable, Revolving	95,795	40,240
Financing Receivable, Originated in Current Fiscal Year	23,195	90,240
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	64,191	9,677
Financing Receivable, Originated Two Years before Latest Fiscal Year	18,737	34,730
Financing Receivable, Originated Three Years before Latest Fiscal Year	124,041	126,134
Financing Receivable, Originated Four Years before Latest Fiscal Year	87,717	3,347
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,105	131
Financing Receivable, before Allowance for Credit Loss, Total	415,780	304,500
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	1,564	42
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	533	772
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	7,718	4,468
Financing Receivable, Originated Two Years before Latest Fiscal Year	33	12,988
Financing Receivable, Originated Three Years before Latest Fiscal Year	4,518	855
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	12,802	19,084
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	13,646	14,703
Financing Receivable, Originated in Current Fiscal Year	87,696	231,446
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	249,621	187,066
Financing Receivable, Originated Two Years before Latest Fiscal Year	169,108	181,625
Financing Receivable, Originated Three Years before Latest Fiscal Year	179,764	223,557
Financing Receivable, Originated Four Years before Latest Fiscal Year	196,496	117,435
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	253,608	187,911
Financing Receivable, before Allowance for Credit Loss, Total	1,149,939	1,143,741
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	3
Financing Receivable, Allowance for Credit Loss, Writeoff	0	3
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	2,848	13,760
Financing Receivable, Originated in Current Fiscal Year	80,406	228,913
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	226,814	175,059
Financing Receivable, Originated Two Years before Latest Fiscal Year	147,415	180,132
Financing Receivable, Originated Three Years before Latest Fiscal Year	178,379	214,237
Financing Receivable, Originated Four Years before Latest Fiscal Year	176,037	114,064
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	237,057	181,982
Financing Receivable, before Allowance for Credit Loss, Total	1,048,958	1,108,147
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	10,165	0
Financing Receivable, Originated in Current Fiscal Year	0	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	12,803	497
Financing Receivable, Originated Two Years before Latest Fiscal Year	11,530	0
Financing Receivable, Originated Three Years before Latest Fiscal Year	0	8,619
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,199	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,829	2,803
Financing Receivable, before Allowance for Credit Loss, Total	37,525	11,920
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	633	943
Financing Receivable, Originated in Current Fiscal Year	7,086	2,532
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	10,004	10,009
Financing Receivable, Originated Two Years before Latest Fiscal Year	10,163	1,492
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,385	701
Financing Receivable, Originated Four Years before Latest Fiscal Year	19,260	3,371
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	14,722	3,125
Financing Receivable, before Allowance for Credit Loss, Total	63,253	22,173
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	203	0
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	1,501
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	203	1,501
Commercial Portfolio Segment [Member] | Commercial And Business Lending [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	2,600	2,306
Financing Receivable, Revolving	2,137,905	1,945,563
Financing Receivable, Originated in Current Fiscal Year	2,979,651	2,983,447
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,694,478	1,720,298
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,404,250	2,547,491
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,688,465	1,437,710
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,010,572	384,583
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	802,268	698,390
Financing Receivable, before Allowance for Credit Loss, Total	12,717,590	11,717,483
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	4,015	4,433
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	0	128
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	580	11,484
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	3,513	8,510
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	3,799	22,959
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	379	3
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	0	3
Financing Receivable, Allowance for Credit Loss, Writeoff	12,286	47,520
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	29	248
Financing Receivable, Revolving	2,016,345	1,855,550
Financing Receivable, Originated in Current Fiscal Year	2,945,604	2,885,866
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,585,062	1,689,336
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,349,009	2,434,891
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,551,754	1,294,416
Financing Receivable, Originated Four Years before Latest Fiscal Year	897,165	377,350
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	783,250	692,283
Financing Receivable, before Allowance for Credit Loss, Total	12,128,189	11,229,693
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	25,132	48,829
Financing Receivable, Originated in Current Fiscal Year	3,029	4,037
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	27,503	5,307
Financing Receivable, Originated Two Years before Latest Fiscal Year	26,309	63,390
Financing Receivable, Originated Three Years before Latest Fiscal Year	6,768	15,604
Financing Receivable, Originated Four Years before Latest Fiscal Year	6,430	515
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,192	2,852
Financing Receivable, before Allowance for Credit Loss, Total	97,363	140,532
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	1,006	2,015
Financing Receivable, Revolving	96,428	41,183
Financing Receivable, Originated in Current Fiscal Year	30,281	92,772
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	74,195	19,686
Financing Receivable, Originated Two Years before Latest Fiscal Year	28,900	36,222
Financing Receivable, Originated Three Years before Latest Fiscal Year	125,425	126,835
Financing Receivable, Originated Four Years before Latest Fiscal Year	106,977	6,719
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	16,827	3,255
Financing Receivable, before Allowance for Credit Loss, Total	479,034	326,673
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	1,564	42
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	736	772
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	7,718	5,969
Financing Receivable, Originated Two Years before Latest Fiscal Year	33	12,988
Financing Receivable, Originated Three Years before Latest Fiscal Year	4,518	855
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	13,006	20,585
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	7,185	0
Financing Receivable, Revolving	166,555	190,451
Financing Receivable, Originated in Current Fiscal Year	1,416,696	1,485,088
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,069,663	785,058
Financing Receivable, Originated Two Years before Latest Fiscal Year	587,448	1,303,690
Financing Receivable, Originated Three Years before Latest Fiscal Year	957,034	751,786
Financing Receivable, Originated Four Years before Latest Fiscal Year	581,589	328,338
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	590,457	383,563
Financing Receivable, before Allowance for Credit Loss, Total	5,369,441	5,227,975
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	6,617
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	8,356	1
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	184	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	12,667	4,569
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	0	0
Financing Receivable, Allowance for Credit Loss, Writeoff	21,206	11,187
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	7,185	0
Financing Receivable, Revolving	166,555	190,451
Financing Receivable, Originated in Current Fiscal Year	1,391,645	1,334,740
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,012,499	725,652
Financing Receivable, Originated Two Years before Latest Fiscal Year	536,025	1,179,867
Financing Receivable, Originated Three Years before Latest Fiscal Year	806,485	723,994
Financing Receivable, Originated Four Years before Latest Fiscal Year	528,193	321,084
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	584,273	363,288
Financing Receivable, before Allowance for Credit Loss, Total	5,025,674	4,839,076
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	0
Financing Receivable, Originated in Current Fiscal Year	7,234	69,014
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	20,746	6,385
Financing Receivable, Originated Two Years before Latest Fiscal Year	38,240	30,672
Financing Receivable, Originated Three Years before Latest Fiscal Year	58,717	12,312
Financing Receivable, Originated Four Years before Latest Fiscal Year	10,698	6,870
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	5,059	10,366
Financing Receivable, before Allowance for Credit Loss, Total	140,695	135,618
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	17,817	69,385
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	36,418	53,022
Financing Receivable, Originated Two Years before Latest Fiscal Year	13,183	93,151
Financing Receivable, Originated Three Years before Latest Fiscal Year	84,499	10,724
Financing Receivable, Originated Four Years before Latest Fiscal Year	42,697	384
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,125	9,910
Financing Receivable, before Allowance for Credit Loss, Total	195,739	236,576
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	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	0	11,949
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	7,333	4,757
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	7,333	16,705
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	27,572	30,090
Financing Receivable, Originated in Current Fiscal Year	300,652	326,414
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	623,758	396,845
Financing Receivable, Originated Two Years before Latest Fiscal Year	344,617	1,009,450
Financing Receivable, Originated Three Years before Latest Fiscal Year	652,079	186,890
Financing Receivable, Originated Four Years before Latest Fiscal Year	3,107	25,654
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	6,979	7,289
Financing Receivable, before Allowance for Credit Loss, Total	1,958,766	1,982,632
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	0
Financing Receivable, Allowance for Credit Loss, Writeoff	0	0
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	27,572	30,090
Financing Receivable, Originated in Current Fiscal Year	177,783	278,754
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	583,971	390,845
Financing Receivable, Originated Two Years before Latest Fiscal Year	283,923	807,347
Financing Receivable, Originated Three Years before Latest Fiscal Year	257,928	142,137
Financing Receivable, Originated Four Years before Latest Fiscal Year	3,107	25,654
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	6,835	7,260
Financing Receivable, before Allowance for Credit Loss, Total	1,341,119	1,682,086
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	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	0	19,419
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	12,887	96,442
Financing Receivable, Originated Three Years before Latest Fiscal Year	157,523	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	170,410	115,862
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	0
Financing Receivable, Revolving	0	0
Financing Receivable, Originated in Current Fiscal Year	122,869	28,241
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	39,788	6,000
Financing Receivable, Originated Two Years before Latest Fiscal Year	47,807	105,660
Financing Receivable, Originated Three Years before Latest Fiscal Year	236,628	44,754
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	447,092	184,654
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	145	30
Financing Receivable, before Allowance for Credit Loss, Total	145	30
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	7,185	0
Financing Receivable, Revolving	194,127	220,541
Financing Receivable, Originated in Current Fiscal Year	1,717,348	1,811,502
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,693,422	1,181,903
Financing Receivable, Originated Two Years before Latest Fiscal Year	932,065	2,313,140
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,609,114	938,677
Financing Receivable, Originated Four Years before Latest Fiscal Year	584,696	353,992
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	597,436	390,853
Financing Receivable, before Allowance for Credit Loss, Total	7,328,207	7,210,607
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	6,617
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	8,356	1
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	184	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	12,667	4,569
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	0	0
Financing Receivable, Allowance for Credit Loss, Writeoff	21,206	11,187
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	7,185	0
Financing Receivable, Revolving	194,127	220,541
Financing Receivable, Originated in Current Fiscal Year	1,569,428	1,613,494
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,596,470	1,116,496
Financing Receivable, Originated Two Years before Latest Fiscal Year	819,947	1,987,215
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,064,413	866,130
Financing Receivable, Originated Four Years before Latest Fiscal Year	531,300	346,738
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	591,107	370,548
Financing Receivable, before Allowance for Credit Loss, Total	6,366,793	6,521,163
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	0
Financing Receivable, Originated in Current Fiscal Year	7,234	88,433
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	20,746	6,385
Financing Receivable, Originated Two Years before Latest Fiscal Year	51,127	127,114
Financing Receivable, Originated Three Years before Latest Fiscal Year	216,240	12,312
Financing Receivable, Originated Four Years before Latest Fiscal Year	10,698	6,870
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	5,059	10,366
Financing Receivable, before Allowance for Credit Loss, Total	311,105	251,480
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	140,685	97,626
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	76,206	59,022
Financing Receivable, Originated Two Years before Latest Fiscal Year	60,991	198,811
Financing Receivable, Originated Three Years before Latest Fiscal Year	321,127	55,477
Financing Receivable, Originated Four Years before Latest Fiscal Year	42,697	384
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	1,125	9,910
Financing Receivable, before Allowance for Credit Loss, Total	642,831	421,230
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	0	11,949
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	7,333	4,757
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	145	30
Financing Receivable, before Allowance for Credit Loss, Total	7,478	16,735
Consumer Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	10,856	10,878
Financing Receivable, Revolving	850,842	814,906
Financing Receivable, Originated in Current Fiscal Year	1,187,708	1,432,794
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,167,979	1,378,053
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,138,611	2,275,714
Financing Receivable, Originated Three Years before Latest Fiscal Year	2,008,511	1,710,096
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,577,332	1,206,880
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,975,183	2,022,053
Financing Receivable, before Allowance for Credit Loss, Total	10,906,167	10,840,496
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	6,210	6,649
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	76	438
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	1,322	3,212
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	2,363	5,790
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	2,882	755
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	584	205
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	387	659
Financing Receivable, Allowance for Credit Loss, Writeoff	13,825	17,709
Consumer Loan [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	9,649	9,071
Financing Receivable, Revolving	847,377	811,096
Financing Receivable, Originated in Current Fiscal Year	1,184,568	1,428,969
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,163,578	1,372,603
Financing Receivable, Originated Two Years before Latest Fiscal Year	1,129,705	2,257,910
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,990,084	1,699,069
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,564,808	1,198,368
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,934,022	1,979,055
Financing Receivable, before Allowance for Credit Loss, Total	10,814,142	10,747,070
Consumer Loan [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	63	127
Financing Receivable, Revolving	1,125	1,207
Financing Receivable, Originated in Current Fiscal Year	174	381
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	462	704
Financing Receivable, Originated Two Years before Latest Fiscal Year	696	1,083
Financing Receivable, Originated Three Years before Latest Fiscal Year	714	185
Financing Receivable, Originated Four Years before Latest Fiscal Year	86	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	153	484
Financing Receivable, before Allowance for Credit Loss, Total	3,410	4,045
Consumer Loan [Member] | Substandard [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	0	0
Financing Receivable, Revolving	2,186	2,418
Financing Receivable, Originated in Current Fiscal Year	0	594
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	327
Financing Receivable, Originated Two Years before Latest Fiscal Year	300	77
Financing Receivable, Originated Three Years before Latest Fiscal Year	130	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	304	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	24
Financing Receivable, before Allowance for Credit Loss, Total	2,920	3,440
Consumer Loan [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	1,145	1,679
Financing Receivable, Revolving	154	185
Financing Receivable, Originated in Current Fiscal Year	2,966	2,849
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	3,939	4,420
Financing Receivable, Originated Two Years before Latest Fiscal Year	7,910	16,644
Financing Receivable, Originated Three Years before Latest Fiscal Year	17,584	10,842
Financing Receivable, Originated Four Years before Latest Fiscal Year	12,135	8,512
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	41,008	42,490
Financing Receivable, before Allowance for Credit Loss, Total	85,696	85,941
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	172,224	175,539
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	227,669	509,647
Financing Receivable, Originated Two Years before Latest Fiscal Year	509,838	1,590,679
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,533,655	1,653,482
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,540,009	1,204,049
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,874,890	1,914,144
Financing Receivable, before Allowance for Credit Loss, Total	6,858,285	7,047,541
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	53	134
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	187	125
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	300	101
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	74	153
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	268	515
Financing Receivable, Allowance for Credit Loss, Writeoff	882	1,029
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	169,527	172,607
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	225,176	507,186
Financing Receivable, Originated Two Years before Latest Fiscal Year	504,675	1,579,182
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,520,445	1,643,341
Financing Receivable, Originated Four Years before Latest Fiscal Year	1,528,394	1,195,752
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2,840,216	1,878,251
Financing Receivable, before Allowance for Credit Loss, Total	6,788,432	6,976,319
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	16	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	10	162
Financing Receivable, before Allowance for Credit Loss, Total	26	162
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	0	594
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	327
Financing Receivable, Originated Two Years before Latest Fiscal Year	300	77
Financing Receivable, Originated Three Years before Latest Fiscal Year	130	0
Financing Receivable, Originated Four Years before Latest Fiscal Year	304	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	24
Financing Receivable, before Allowance for Credit Loss, Total	733	1,022
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	2,681	2,338
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	2,493	2,134
Financing Receivable, Originated Two Years before Latest Fiscal Year	4,863	11,420
Financing Receivable, Originated Three Years before Latest Fiscal Year	13,081	10,141
Financing Receivable, Originated Four Years before Latest Fiscal Year	11,311	8,297
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	34,664	35,708
Financing Receivable, before Allowance for Credit Loss, Total	69,093	70,038
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	1,002,308	1,242,431
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	933,627	861,790
Financing Receivable, Originated Two Years before Latest Fiscal Year	623,606	656,212
Financing Receivable, Originated Three Years before Latest Fiscal Year	450,523	49,643
Financing Receivable, Originated Four Years before Latest Fiscal Year	31,561	67
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	20	77
Financing Receivable, before Allowance for Credit Loss, Total	3,041,644	2,810,220
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	67	418
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	1,159	2,982
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	2,091	5,582
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	2,520	560
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	280	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	0	0
Financing Receivable, Allowance for Credit Loss, Writeoff	6,118	9,541
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	1,001,874	1,241,609
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	931,980	858,924
Financing Receivable, Originated Two Years before Latest Fiscal Year	620,136	650,880
Financing Receivable, Originated Three Years before Latest Fiscal Year	446,328	48,999
Financing Receivable, Originated Four Years before Latest Fiscal Year	31,072	67
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	20	77
Financing Receivable, before Allowance for Credit Loss, Total	3,031,410	2,800,555
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	158	332
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	432	704
Financing Receivable, Originated Two Years before Latest Fiscal Year	628	1,048
Financing Receivable, Originated Three Years before Latest Fiscal Year	712	178
Financing Receivable, Originated Four Years before Latest Fiscal Year	86	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	2,016	2,262
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	276	491
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,215	2,162
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,842	4,284
Financing Receivable, Originated Three Years before Latest Fiscal Year	3,483	466
Financing Receivable, Originated Four Years before Latest Fiscal Year	403	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	0	0
Financing Receivable, before Allowance for Credit Loss, Total	8,218	7,402
Consumer Loan [Member] | Home Equity Line of Credit [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	10,239	10,568
Financing Receivable, Revolving	608,626	570,051
Financing Receivable, Originated in Current Fiscal Year	1,147	467
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,924	1,788
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,786	26,305
Financing Receivable, Originated Three Years before Latest Fiscal Year	22,994	5,520
Financing Receivable, Originated Four Years before Latest Fiscal Year	5,375	2,180
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	55,260	57,941
Financing Receivable, before Allowance for Credit Loss, Total	698,112	664,252
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	0	93
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	62	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	26	9
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	5	19
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	5	10
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	65	85
Financing Receivable, Allowance for Credit Loss, Writeoff	164	216
Consumer Loan [Member] | Home Equity Line of Credit [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	9,035	8,764
Financing Receivable, Revolving	608,517	569,866
Financing Receivable, Originated in Current Fiscal Year	1,147	411
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	1,710	1,684
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,522	25,372
Financing Receivable, Originated Three Years before Latest Fiscal Year	21,978	5,289
Financing Receivable, Originated Four Years before Latest Fiscal Year	4,957	1,965
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	48,776	50,841
Financing Receivable, before Allowance for Credit Loss, Total	689,607	655,429
Consumer Loan [Member] | Home Equity Line of Credit [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	61	127
Financing Receivable, Revolving	0	81
Financing Receivable, Originated in Current Fiscal Year	0	41
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	0	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	64	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	141	323
Financing Receivable, before Allowance for Credit Loss, Total	206	445
Consumer Loan [Member] | Home Equity Line of Credit [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	1,143	1,677
Financing Receivable, Revolving	109	104
Financing Receivable, Originated in Current Fiscal Year	0	15
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	214	103
Financing Receivable, Originated Two Years before Latest Fiscal Year	199	933
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,016	231
Financing Receivable, Originated Four Years before Latest Fiscal Year	419	215
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	6,342	6,778
Financing Receivable, before Allowance for Credit Loss, Total	8,299	8,378
Consumer Loan [Member] | Other Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	617	310
Financing Receivable, Revolving	242,216	244,855
Financing Receivable, Originated in Current Fiscal Year	12,029	14,356
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	4,759	4,829
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,382	2,518
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,339	1,451
Financing Receivable, Originated Four Years before Latest Fiscal Year	387	584
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	45,014	49,891
Financing Receivable, before Allowance for Credit Loss, Total	308,126	318,483
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable, Revolving, Writeoff	6,210	6,555
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	8	20
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	48	96
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	59	75
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	58	75
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	224	42
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	54	59
Financing Receivable, Allowance for Credit Loss, Writeoff	6,661	6,922
Consumer Loan [Member] | Other Consumer [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	614	308
Financing Receivable, Revolving	238,860	241,230
Financing Receivable, Originated in Current Fiscal Year	12,020	14,343
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	4,712	4,808
Financing Receivable, Originated Two Years before Latest Fiscal Year	2,372	2,475
Financing Receivable, Originated Three Years before Latest Fiscal Year	1,333	1,440
Financing Receivable, Originated Four Years before Latest Fiscal Year	385	584
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	45,010	49,886
Financing Receivable, before Allowance for Credit Loss, Total	304,692	314,767
Consumer Loan [Member] | Other Consumer [Member] | Special Mention [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	2	0
Financing Receivable, Revolving	1,125	1,125
Financing Receivable, Originated in Current Fiscal Year	0	8
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	30	0
Financing Receivable, Originated Two Years before Latest Fiscal Year	4	36
Financing Receivable, Originated Three Years before Latest Fiscal Year	2	7
Financing Receivable, Originated Four Years before Latest Fiscal Year	0	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2	0
Financing Receivable, before Allowance for Credit Loss, Total	1,162	1,176
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	2,186	2,418
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	2,186	2,418
Consumer Loan [Member] | Other Consumer [Member] | Nonaccrual Loan [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Revolving, Converted To Term Loan	2	2
Financing Receivable, Revolving	44	81
Financing Receivable, Originated in Current Fiscal Year	10	5
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year	18	21
Financing Receivable, Originated Two Years before Latest Fiscal Year	6	7
Financing Receivable, Originated Three Years before Latest Fiscal Year	4	4
Financing Receivable, Originated Four Years before Latest Fiscal Year	2	0
Financing Receivable, Originated Five or More Years before Latest Fiscal Year	2	4
Financing Receivable, before Allowance for Credit Loss, Total	$ 85	$ 122