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Loans - Loans by Credit Grades (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 3,660,081	$ 3,867,383
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	383,286	443,551
Fiscal year before current fiscal year	233,111	277,669
Two year before current fiscal year	247,085	235,924
Three year before current fiscal year	209,409	298,388
Four year before current fiscal year	278,997	192,725
Prior	552,547	476,011
Revolving Loans	268,765	268,003
Total	2,173,200	2,192,271
Commercial | Owner occupied real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	51,502	58,747
Fiscal year before current fiscal year	60,647	67,870
Two year before current fiscal year	68,294	59,395
Three year before current fiscal year	55,237	61,741
Four year before current fiscal year	58,597	54,526
Prior	177,021	149,833
Revolving Loans	49,888	44,194
Total	521,186	496,306
Commercial | Owner occupied real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	51,502	57,726
Fiscal year before current fiscal year	59,563	65,558
Two year before current fiscal year	66,358	49,455
Three year before current fiscal year	48,852	49,032
Four year before current fiscal year	46,074	47,480
Prior	154,262	127,373
Revolving Loans	45,993	40,027
Total	472,604	436,651
Commercial | Owner occupied real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	77	1,081
Two year before current fiscal year	735	5,928
Three year before current fiscal year	2,396	10,205
Four year before current fiscal year	8,567	4,207
Prior	7,539	12,787
Revolving Loans	0	325
Total	19,314	34,533
Commercial | Owner occupied real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	1,021
Fiscal year before current fiscal year	1,007	1,231
Two year before current fiscal year	1,201	4,012
Three year before current fiscal year	3,989	2,504
Four year before current fiscal year	3,956	2,839
Prior	15,220	9,673
Revolving Loans	3,895	3,842
Total	29,268	25,122
Commercial | Owner occupied real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial | Non–owner occupied real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	111,223	116,529
Fiscal year before current fiscal year	111,472	136,811
Two year before current fiscal year	123,208	103,869
Three year before current fiscal year	92,593	134,801
Four year before current fiscal year	140,690	108,644
Prior	283,879	226,352
Revolving Loans	153,312	172,630
Total	1,016,377	999,636
Commercial | Non–owner occupied real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	111,223	115,667
Fiscal year before current fiscal year	110,627	120,023
Two year before current fiscal year	106,765	73,669
Three year before current fiscal year	61,794	133,396
Four year before current fiscal year	135,791	99,674
Prior	269,509	208,649
Revolving Loans	150,423	166,986
Total	946,132	918,064
Commercial | Non–owner occupied real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	862
Fiscal year before current fiscal year	845	1,236
Two year before current fiscal year	1,203	28,723
Three year before current fiscal year	29,409	1,298
Four year before current fiscal year	4,470	2,548
Prior	5,687	13,182
Revolving Loans	519	4,072
Total	42,133	51,921
Commercial | Non–owner occupied real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	15,552
Two year before current fiscal year	15,240	1,477
Three year before current fiscal year	1,390	107
Four year before current fiscal year	429	6,422
Prior	8,683	4,521
Revolving Loans	2,370	1,572
Total	28,112	29,651
Commercial | Non–owner occupied real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial | Residential spec homes
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	1,117	737
Fiscal year before current fiscal year	758	237
Two year before current fiscal year	338	0
Three year before current fiscal year	0	298
Four year before current fiscal year	0	368
Prior	913	1,177
Revolving Loans	7,016	7,253
Total	10,142	10,070
Commercial | Residential spec homes | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	1,117	737
Fiscal year before current fiscal year	758	237
Two year before current fiscal year	338	0
Three year before current fiscal year	0	298
Four year before current fiscal year	0	368
Prior	913	1,177
Revolving Loans	7,016	7,253
Total	10,142	10,070
Commercial | Residential spec homes | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial | Residential spec homes | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial | Residential spec homes | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial | Development & spec land
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	1,520	573
Fiscal year before current fiscal year	550	736
Two year before current fiscal year	512	1,522
Three year before current fiscal year	12	2,461
Four year before current fiscal year	1,866	672
Prior	13,750	12,751
Revolving Loans	13,747	7,657
Total	31,957	26,372
Commercial | Development & spec land | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	1,520	573
Fiscal year before current fiscal year	550	736
Two year before current fiscal year	512	1,522
Three year before current fiscal year	12	2,461
Four year before current fiscal year	1,849	672
Prior	12,915	11,971
Revolving Loans	12,640	6,907
Total	29,998	24,842
Commercial | Development & spec land | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	184	274
Revolving Loans	358	0
Total	542	274
Commercial | Development & spec land | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	17	0
Prior	651	506
Revolving Loans	749	750
Total	1,417	1,256
Commercial | Development & spec land | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Commercial | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	217,924	266,965
Fiscal year before current fiscal year	59,684	72,015
Two year before current fiscal year	54,733	71,138
Three year before current fiscal year	61,567	99,087
Four year before current fiscal year	77,844	28,515
Prior	76,984	85,898
Revolving Loans	44,802	36,269
Total	593,538	659,887
Commercial | Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	214,792	253,953
Fiscal year before current fiscal year	56,773	63,772
Two year before current fiscal year	50,106	58,978
Three year before current fiscal year	51,700	88,121
Four year before current fiscal year	68,635	26,044
Prior	71,387	70,706
Revolving Loans	37,613	30,845
Total	551,006	592,419
Commercial | Commercial and industrial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	1,586	8,779
Fiscal year before current fiscal year	2,765	1,164
Two year before current fiscal year	1,385	1,088
Three year before current fiscal year	4,119	9,306
Four year before current fiscal year	6,809	1,835
Prior	4,015	11,870
Revolving Loans	2,586	3,040
Total	23,265	37,082
Commercial | Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	1,546	4,233
Fiscal year before current fiscal year	146	7,079
Two year before current fiscal year	3,242	11,072
Three year before current fiscal year	5,748	1,660
Four year before current fiscal year	2,400	636
Prior	1,582	3,322
Revolving Loans	4,603	2,384
Total	19,267	30,386
Commercial | Commercial and industrial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	79,466	109,487
Fiscal year before current fiscal year	111,732	68,852
Two year before current fiscal year	50,563	87,208
Three year before current fiscal year	59,306	89,090
Four year before current fiscal year	68,812	66,018
Prior	210,485	178,045
Revolving Loans	193,085	421,212
Total	773,449	1,019,912
Real estate | Residential mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	79,466	109,487
Fiscal year before current fiscal year	111,732	68,852
Two year before current fiscal year	50,563	87,208
Three year before current fiscal year	59,306	89,090
Four year before current fiscal year	68,812	66,018
Prior	210,485	178,045
Revolving Loans	0	0
Total	580,364	598,700
Real estate | Residential mortgage | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	79,466	109,487
Fiscal year before current fiscal year	111,732	68,556
Two year before current fiscal year	50,187	86,572
Three year before current fiscal year	58,431	89,051
Four year before current fiscal year	68,812	65,718
Prior	203,095	171,322
Revolving Loans	0	0
Total	571,723	590,706
Real estate | Residential mortgage | Non–performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	296
Two year before current fiscal year	376	636
Three year before current fiscal year	875	39
Four year before current fiscal year	0	300
Prior	7,390	6,723
Revolving Loans	0	0
Total	8,641	7,994
Real estate | Residential construction
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans	23,176	25,586
Total	23,176	25,586
Real estate | Residential construction | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans	23,176	25,586
Total	23,176	25,586
Real estate | Residential construction | Non–performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Real estate | Mortgage warehouse
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans	169,909	395,626
Total	169,909	395,626
Real estate | Mortgage warehouse | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans	169,909	395,626
Total	169,909	395,626
Real estate | Mortgage warehouse | Non–performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans	0	0
Total	0	0
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	188,781	210,976
Fiscal year before current fiscal year	172,875	149,954
Two year before current fiscal year	120,198	115,353
Three year before current fiscal year	83,809	70,702
Four year before current fiscal year	52,829	33,414
Prior	85,827	67,719
Revolving Loans	9,113	7,082
Total	713,432	655,200
Consumer | Direct installment
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	15,487	12,552
Fiscal year before current fiscal year	14,385	9,552
Two year before current fiscal year	15,628	5,828
Three year before current fiscal year	8,051	5,951
Four year before current fiscal year	7,105	2,127
Prior	6,365	2,024
Revolving Loans	155	12
Total	67,176	38,046
Consumer | Direct installment | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	15,487	12,552
Fiscal year before current fiscal year	14,385	9,552
Two year before current fiscal year	15,628	5,828
Three year before current fiscal year	8,051	5,946
Four year before current fiscal year	7,093	2,124
Prior	6,358	2,019
Revolving Loans	155	12
Total	67,157	38,033
Consumer | Direct installment | Non–performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
Fiscal year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	5
Four year before current fiscal year	12	3
Prior	7	5
Revolving Loans	0	0
Total	19	13
Consumer | Indirect installment
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	121,687	134,478
Fiscal year before current fiscal year	101,652	97,631
Two year before current fiscal year	67,932	74,607
Three year before current fiscal year	47,147	37,124
Four year before current fiscal year	21,070	8,716
Prior	6,268	4,955
Revolving Loans	0	0
Total	365,756	357,511
Consumer | Indirect installment | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	121,665	134,394
Fiscal year before current fiscal year	101,476	97,408
Two year before current fiscal year	67,748	74,215
Three year before current fiscal year	46,969	36,763
Four year before current fiscal year	20,871	8,636
Prior	6,154	4,801
Revolving Loans	0	0
Total	364,883	356,217
Consumer | Indirect installment | Non–performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	22	84
Fiscal year before current fiscal year	176	223
Two year before current fiscal year	184	392
Three year before current fiscal year	178	361
Four year before current fiscal year	199	80
Prior	114	154
Revolving Loans	0	0
Total	873	1,294
Consumer | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	51,607	63,946
Fiscal year before current fiscal year	56,838	42,771
Two year before current fiscal year	36,638	34,918
Three year before current fiscal year	28,611	27,627
Four year before current fiscal year	24,654	22,571
Prior	73,194	60,740
Revolving Loans	8,958	7,070
Total	280,500	259,643
Consumer | Home equity | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	51,598	63,946
Fiscal year before current fiscal year	56,690	42,762
Two year before current fiscal year	36,628	34,807
Three year before current fiscal year	28,529	27,553
Four year before current fiscal year	24,523	22,450
Prior	71,590	59,503
Revolving Loans	7,222	5,464
Total	276,780	256,485
Consumer | Home equity | Non–performing
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	9	0
Fiscal year before current fiscal year	148	9
Two year before current fiscal year	10	111
Three year before current fiscal year	82	74
Four year before current fiscal year	131	121
Prior	1,604	1,237
Revolving Loans	1,736	1,606
Total	$ 3,720	$ 3,158

X

- Definition

Amount of financing receivable originated more than five years prior to current fiscal year.

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Amount of financing receivable originated three years prior to current fiscal year.

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Amount of financing receivable that can be withdrawn, repaid and redrawn.

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Amount, before allowance for credit loss, of financing receivable.

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