Loans and Allowances for Credit Losses, Credit Quality Indicators (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	$ 905,055	$ 3,678,190
Financing Receivable, Originated, Year Two	3,572,534	2,680,781
Financing Receivable, Originated, Year Three	2,542,803	2,305,870
Financing Receivable, Originated, Year Four	2,196,403	1,579,560
Financing Receivable, Originated, Year Five	1,495,368	1,250,651
Financing Receivable, Originated, More Than Five Years	3,971,169	3,124,953
Financing Receivable, Revolving	5,955,046	5,559,595
Financing Receivable, Revolving, Converted to Term Loan	36,051	26,080
Total	20,674,429	20,205,680
Commercial [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	507,164	2,115,523
Financing Receivable, Originated, Year Two	1,921,320	1,284,235
Financing Receivable, Originated, Year Three	1,209,815	1,142,464
Financing Receivable, Originated, Year Four	1,098,515	995,008
Financing Receivable, Originated, Year Five	936,611	761,286
Financing Receivable, Originated, More Than Five Years	2,285,863	1,725,540
Financing Receivable, Revolving	4,911,235	4,479,513
Financing Receivable, Revolving, Converted to Term Loan	12,666	2,896
Total	12,883,189	12,506,465
Commercial [Member] | Energy [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	102,694	263,341
Financing Receivable, Originated, Year Two	156,718	73,425
Financing Receivable, Originated, Year Three	68,821	17,099
Financing Receivable, Originated, Year Four	16,817	14,362
Financing Receivable, Originated, Year Five	12,618	4,741
Financing Receivable, Originated, More Than Five Years	9,757	8,195
Financing Receivable, Revolving	2,820,342	2,625,721
Financing Receivable, Revolving, Converted to Term Loan	9,900	0
Total	3,197,667	3,006,884
Commercial [Member] | Healthcare [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	140,071	570,635
Financing Receivable, Originated, Year Two	581,679	589,193
Financing Receivable, Originated, Year Three	549,379	559,276
Financing Receivable, Originated, Year Four	557,169	506,083
Financing Receivable, Originated, Year Five	490,451	330,231
Financing Receivable, Originated, More Than Five Years	954,699	698,828
Financing Receivable, Revolving	168,260	160,668
Financing Receivable, Revolving, Converted to Term Loan	24	26
Total	3,441,732	3,414,940
Commercial [Member] | Services [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	54,992	696,626
Financing Receivable, Originated, Year Two	634,931	405,992
Financing Receivable, Originated, Year Three	368,549	295,371
Financing Receivable, Originated, Year Four	272,045	287,001
Financing Receivable, Originated, Year Five	257,921	244,397
Financing Receivable, Originated, More Than Five Years	952,629	799,961
Financing Receivable, Revolving	809,679	637,278
Financing Receivable, Revolving, Converted to Term Loan	749	567
Total	3,351,495	3,367,193
Commercial [Member] | General business [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	209,407	584,921
Financing Receivable, Originated, Year Two	547,992	215,625
Financing Receivable, Originated, Year Three	223,066	270,718
Financing Receivable, Originated, Year Four	252,484	187,562
Financing Receivable, Originated, Year Five	175,621	181,917
Financing Receivable, Originated, More Than Five Years	368,778	218,556
Financing Receivable, Revolving	1,112,954	1,055,846
Financing Receivable, Revolving, Converted to Term Loan	1,993	2,303
Total	2,892,295	2,717,448
Commercial real estate [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	279,254	717,400
Financing Receivable, Originated, Year Two	921,473	711,231
Financing Receivable, Originated, Year Three	695,399	879,359
Financing Receivable, Originated, Year Four	834,058	423,127
Financing Receivable, Originated, Year Five	412,134	294,436
Financing Receivable, Originated, More Than Five Years	850,833	687,894
Financing Receivable, Revolving	107,780	117,847
Financing Receivable, Revolving, Converted to Term Loan	25	31
Total	4,100,956	3,831,325
Paycheck Protection Program [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	237,357
Financing Receivable, Originated, Year Two	113,697	38,984
Financing Receivable, Originated, Year Three	23,668	0
Financing Receivable, Originated, Year Four	0	0
Financing Receivable, Originated, Year Five	0	0
Financing Receivable, Originated, More Than Five Years	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	137,365	276,341
Loans to individuals [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	118,637	607,910
Financing Receivable, Originated, Year Two	616,044	646,331
Financing Receivable, Originated, Year Three	613,921	284,047
Financing Receivable, Originated, Year Four	263,830	161,425
Financing Receivable, Originated, Year Five	146,623	194,929
Financing Receivable, Originated, More Than Five Years	834,473	711,519
Financing Receivable, Revolving	936,031	962,235
Financing Receivable, Revolving, Converted to Term Loan	23,360	23,153
Total	3,552,919	3,591,549
Loans to individuals [Member] | Residential mortgage [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	77,848	387,706
Financing Receivable, Originated, Year Two	394,629	454,346
Financing Receivable, Originated, Year Three	430,536	84,540
Financing Receivable, Originated, Year Four	71,273	62,358
Financing Receivable, Originated, Year Five	51,011	68,925
Financing Receivable, Originated, More Than Five Years	352,616	318,373
Financing Receivable, Revolving	322,831	323,497
Financing Receivable, Revolving, Converted to Term Loan	22,762	22,425
Total	1,723,506	1,722,170
Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	699
Financing Receivable, Originated, Year Two	1,080	11,380
Financing Receivable, Originated, Year Three	11,379	21,909
Financing Receivable, Originated, Year Four	17,859	28,791
Financing Receivable, Originated, Year Five	25,226	33,377
Financing Receivable, Originated, More Than Five Years	267,037	258,017
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	322,581	354,173
Loans to individuals [Member] | Personal [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	40,789	219,505
Financing Receivable, Originated, Year Two	220,335	180,605
Financing Receivable, Originated, Year Three	172,006	177,598
Financing Receivable, Originated, Year Four	174,698	70,276
Financing Receivable, Originated, Year Five	70,386	92,627
Financing Receivable, Originated, More Than Five Years	214,820	135,129
Financing Receivable, Revolving	613,200	638,738
Financing Receivable, Revolving, Converted to Term Loan	598	728
Total	1,506,832	1,515,206
Performing [Member] | Commercial [Member] | Energy [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	102,694	252,133
Financing Receivable, Originated, Year Two	156,167	29,556
Financing Receivable, Originated, Year Three	48,775	15,914
Financing Receivable, Originated, Year Four	15,678	13,548
Financing Receivable, Originated, Year Five	11,925	4,741
Financing Receivable, Originated, More Than Five Years	8,450	6,765
Financing Receivable, Revolving	2,753,419	2,540,525
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	3,097,108	2,863,182
Performing [Member] | Commercial [Member] | Energy [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	558
Financing Receivable, Originated, Year Two	551	771
Financing Receivable, Originated, Year Three	642	0
Financing Receivable, Originated, Year Four	0	0
Financing Receivable, Originated, Year Five	0	0
Financing Receivable, Originated, More Than Five Years	0	0
Financing Receivable, Revolving	1,090	750
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	2,283	2,079
Performing [Member] | Commercial [Member] | Energy [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	10,650
Financing Receivable, Originated, Year Two	0	22,611
Financing Receivable, Originated, Year Three	0	1,185
Financing Receivable, Originated, Year Four	1,139	814
Financing Receivable, Originated, Year Five	693	0
Financing Receivable, Originated, More Than Five Years	705	716
Financing Receivable, Revolving	60,863	74,556
Financing Receivable, Revolving, Converted to Term Loan	9,900	0
Total	73,300	110,532
Performing [Member] | Commercial [Member] | Healthcare [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	140,071	563,800
Financing Receivable, Originated, Year Two	574,892	589,193
Financing Receivable, Originated, Year Three	549,379	516,558
Financing Receivable, Originated, Year Four	514,779	498,998
Financing Receivable, Originated, Year Five	483,909	319,096
Financing Receivable, Originated, More Than Five Years	933,344	688,136
Financing Receivable, Revolving	168,255	160,154
Financing Receivable, Revolving, Converted to Term Loan	24	26
Total	3,364,653	3,335,961
Performing [Member] | Commercial [Member] | Healthcare [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	6,835
Financing Receivable, Originated, Year Two	6,787	0
Financing Receivable, Originated, Year Three	0	15,583
Financing Receivable, Originated, Year Four	15,417	0
Financing Receivable, Originated, Year Five	0	11,135
Financing Receivable, Originated, More Than Five Years	5,712	0
Financing Receivable, Revolving	5	5
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	27,921	33,558
Performing [Member] | Commercial [Member] | Healthcare [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	27,135
Financing Receivable, Originated, Year Four	26,973	543
Financing Receivable, Originated, Year Five	0	0
Financing Receivable, Originated, More Than Five Years	7,109	1,981
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	34,082	29,659
Performing [Member] | Commercial [Member] | Services [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	54,992	696,149
Financing Receivable, Originated, Year Two	634,506	405,057
Financing Receivable, Originated, Year Three	361,724	289,375
Financing Receivable, Originated, Year Four	266,054	275,010
Financing Receivable, Originated, Year Five	246,336	225,404
Financing Receivable, Originated, More Than Five Years	933,399	795,029
Financing Receivable, Revolving	779,824	607,958
Financing Receivable, Revolving, Converted to Term Loan	567	375
Total	3,277,402	3,294,357
Performing [Member] | Commercial [Member] | Services [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	434
Financing Receivable, Originated, Year Two	415	405
Financing Receivable, Originated, Year Three	6,326	1,830
Financing Receivable, Originated, Year Four	1,989	1,047
Financing Receivable, Originated, Year Five	1,006	3,290
Financing Receivable, Originated, More Than Five Years	95	47
Financing Receivable, Revolving	22,419	17,210
Financing Receivable, Revolving, Converted to Term Loan	182	192
Total	32,432	24,455
Performing [Member] | Commercial [Member] | Services [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	43
Financing Receivable, Originated, Year Two	10	530
Financing Receivable, Originated, Year Three	499	4,166
Financing Receivable, Originated, Year Four	4,002	10,714
Financing Receivable, Originated, Year Five	10,579	1,785
Financing Receivable, Originated, More Than Five Years	2,990	2,366
Financing Receivable, Revolving	7,046	11,607
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	25,126	31,211
Performing [Member] | Commercial [Member] | General business [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	209,407	584,438
Financing Receivable, Originated, Year Two	547,777	211,892
Financing Receivable, Originated, Year Three	220,861	264,462
Financing Receivable, Originated, Year Four	250,546	177,384
Financing Receivable, Originated, Year Five	167,570	168,977
Financing Receivable, Originated, More Than Five Years	356,548	215,014
Financing Receivable, Revolving	1,102,054	1,047,420
Financing Receivable, Revolving, Converted to Term Loan	1,981	2,284
Total	2,856,744	2,671,871
Performing [Member] | Commercial [Member] | General business [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	218
Financing Receivable, Originated, Year Two	0	223
Financing Receivable, Originated, Year Three	137	60
Financing Receivable, Originated, Year Four	0	1,435
Financing Receivable, Originated, Year Five	1,374	3,842
Financing Receivable, Originated, More Than Five Years	2,975	0
Financing Receivable, Revolving	8,100	5,875
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	12,586	11,653
Performing [Member] | Commercial [Member] | General business [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	265
Financing Receivable, Originated, Year Two	215	1,066
Financing Receivable, Originated, Year Three	957	1,634
Financing Receivable, Originated, Year Four	1,139	7,697
Financing Receivable, Originated, Year Five	5,673	8,336
Financing Receivable, Originated, More Than Five Years	9,231	3,024
Financing Receivable, Revolving	2,000	1,821
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	19,215	23,843
Performing [Member] | Commercial real estate [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	279,254	717,400
Financing Receivable, Originated, Year Two	921,473	711,231
Financing Receivable, Originated, Year Three	695,399	871,283
Financing Receivable, Originated, Year Four	826,150	403,115
Financing Receivable, Originated, Year Five	398,633	279,058
Financing Receivable, Originated, More Than Five Years	820,481	664,684
Financing Receivable, Revolving	107,780	117,847
Financing Receivable, Revolving, Converted to Term Loan	25	31
Total	4,049,195	3,764,649
Performing [Member] | Commercial real estate [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	0
Financing Receivable, Originated, Year Four	0	6,660
Financing Receivable, Originated, Year Five	0	10,898
Financing Receivable, Originated, More Than Five Years	18,942	9,244
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	18,942	26,802
Performing [Member] | Commercial real estate [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	0
Financing Receivable, Originated, Year Four	0	13,352
Financing Receivable, Originated, Year Five	13,501	4,480
Financing Receivable, Originated, More Than Five Years	3,329	7,780
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	16,830	25,612
Performing [Member] | Paycheck Protection Program [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	237,357
Financing Receivable, Originated, Year Two	113,697	38,984
Financing Receivable, Originated, Year Three	23,668	0
Financing Receivable, Originated, Year Four	0	0
Financing Receivable, Originated, Year Five	0	0
Financing Receivable, Originated, More Than Five Years	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	137,365	276,341
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	77,813	386,092
Financing Receivable, Originated, Year Two	393,077	452,537
Financing Receivable, Originated, Year Three	427,965	84,001
Financing Receivable, Originated, Year Four	70,900	60,390
Financing Receivable, Originated, Year Five	48,809	68,150
Financing Receivable, Originated, More Than Five Years	330,626	295,632
Financing Receivable, Revolving	320,350	320,638
Financing Receivable, Revolving, Converted to Term Loan	21,887	21,463
Total	1,691,427	1,688,903
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	35	0
Financing Receivable, Originated, Year Three	0	156
Financing Receivable, Originated, Year Four	17	0
Financing Receivable, Originated, Year Five	145	19
Financing Receivable, Originated, More Than Five Years	284	411
Financing Receivable, Revolving	552	282
Financing Receivable, Revolving, Converted to Term Loan	210	159
Total	1,243	1,027
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	98
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	0
Financing Receivable, Originated, Year Four	0	0
Financing Receivable, Originated, Year Five	0	127
Financing Receivable, Originated, More Than Five Years	53	41
Financing Receivable, Revolving	26	400
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	79	666
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	699
Financing Receivable, Originated, Year Two	1,080	11,380
Financing Receivable, Originated, Year Three	11,379	20,650
Financing Receivable, Originated, Year Four	15,778	27,970
Financing Receivable, Originated, Year Five	23,480	32,742
Financing Receivable, Originated, More Than Five Years	253,872	246,871
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	305,589	340,312
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	40,789	218,960
Financing Receivable, Originated, Year Two	219,748	180,577
Financing Receivable, Originated, Year Three	171,964	177,389
Financing Receivable, Originated, Year Four	174,523	70,249
Financing Receivable, Originated, Year Five	70,349	92,592
Financing Receivable, Originated, More Than Five Years	214,736	135,041
Financing Receivable, Revolving	613,114	638,713
Financing Receivable, Revolving, Converted to Term Loan	598	728
Total	1,505,821	1,514,249
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	49	9
Financing Receivable, Originated, Year Three	23	34
Financing Receivable, Originated, Year Four	0	3
Financing Receivable, Originated, Year Five	15	0
Financing Receivable, Originated, More Than Five Years	42	47
Financing Receivable, Revolving	15	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	144	93
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	435
Financing Receivable, Originated, Year Two	524	5
Financing Receivable, Originated, Year Three	0	165
Financing Receivable, Originated, Year Four	165	0
Financing Receivable, Originated, Year Five	0	0
Financing Receivable, Originated, More Than Five Years	0	1
Financing Receivable, Revolving	7	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	696	606
Nonperforming Financial Instruments [Member] | Commercial [Member] | Energy [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	20,487
Financing Receivable, Originated, Year Three	19,404	0
Financing Receivable, Originated, Year Four	0	0
Financing Receivable, Originated, Year Five	0	0
Financing Receivable, Originated, More Than Five Years	602	714
Financing Receivable, Revolving	4,970	9,890
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	24,976	31,091
Nonperforming Financial Instruments [Member] | Commercial [Member] | Healthcare [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	0
Financing Receivable, Originated, Year Four	0	6,542
Financing Receivable, Originated, Year Five	6,542	0
Financing Receivable, Originated, More Than Five Years	8,534	8,711
Financing Receivable, Revolving	0	509
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	15,076	15,762
Nonperforming Financial Instruments [Member] | Commercial [Member] | Services [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	0
Financing Receivable, Originated, Year Four	0	230
Financing Receivable, Originated, Year Five	0	13,918
Financing Receivable, Originated, More Than Five Years	16,145	2,519
Financing Receivable, Revolving	390	503
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	16,535	17,170
Nonperforming Financial Instruments [Member] | Commercial [Member] | General business [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	2,444
Financing Receivable, Originated, Year Three	1,111	4,562
Financing Receivable, Originated, Year Four	799	1,046
Financing Receivable, Originated, Year Five	1,004	762
Financing Receivable, Originated, More Than Five Years	24	518
Financing Receivable, Revolving	800	730
Financing Receivable, Revolving, Converted to Term Loan	12	19
Total	3,750	10,081
Nonperforming Financial Instruments [Member] | Commercial real estate [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	8,076
Financing Receivable, Originated, Year Four	7,908	0
Financing Receivable, Originated, Year Five	0	0
Financing Receivable, Originated, More Than Five Years	8,081	6,186
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	15,989	14,262
Nonperforming Financial Instruments [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	35	1,516
Financing Receivable, Originated, Year Two	1,517	1,809
Financing Receivable, Originated, Year Three	2,571	383
Financing Receivable, Originated, Year Four	356	1,968
Financing Receivable, Originated, Year Five	2,057	629
Financing Receivable, Originated, More Than Five Years	21,653	22,289
Financing Receivable, Revolving	1,903	2,177
Financing Receivable, Revolving, Converted to Term Loan	665	803
Total	30,757	31,574
Nonperforming Financial Instruments [Member] | Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	1,259
Financing Receivable, Originated, Year Four	2,081	821
Financing Receivable, Originated, Year Five	1,746	635
Financing Receivable, Originated, More Than Five Years	13,165	11,146
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	16,992	13,861
Nonperforming Financial Instruments [Member] | Loans to individuals [Member] | Personal [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	110
Financing Receivable, Originated, Year Two	14	14
Financing Receivable, Originated, Year Three	19	10
Financing Receivable, Originated, Year Four	10	24
Financing Receivable, Originated, Year Five	22	35
Financing Receivable, Originated, More Than Five Years	42	40
Financing Receivable, Revolving	64	25
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	$ 171	$ 258