Loans and Allowance for Loan Losses - Credit risk profile by risk grade of non acquired loans - (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Loans and Allowance for Loan Losses
Other Real Estate, Non Covered	$ 13,527	$ 18,316	$ 22,211	$ 24,803
Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	6,230,327	5,241,041	5,008,113
Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	6,116,379	5,112,628	4,873,202
Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	77,757	89,489	93,239
Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	36,191	38,924	41,672
Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	1,455,555		885,657
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,455,555	836,699	885,657
Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,417,304	812,320	860,150
Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	24,570	13,355	14,066
Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	13,681	11,024	11,441
Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	582,533		636,020
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	582,533	605,941	636,020
Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	345,076	356,544	366,975
Acquired credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	98,711	115,726	126,881
Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	138,746	133,671	142,164
Acquired credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance		210,204
Acquired credit impaired loans | Other commercial non-owner occupied real estate | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance		162,870
Acquired credit impaired loans | Other commercial non-owner occupied real estate | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance		26,238
Acquired credit impaired loans | Other commercial non-owner occupied real estate | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance		21,096
Residential real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	249,666		268,968
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	249,666	258,100	268,968
Residential real estate | Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	133,969	138,343	143,946
Residential real estate | Acquired credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	50,488	52,546	54,597
Residential real estate | Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	65,209	67,211	70,425
Commercial non-owner occupied real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,716,827	1,295,179	1,192,773
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	766,957	580,464	562,336
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Pass
Loans and Allowance for Loan Losses
Total loans	755,633	567,398	548,984
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Special mention
Loans and Allowance for Loan Losses
Total loans	7,445	8,421	8,492
Commercial non-owner occupied real estate | Non-acquired loans | Construction and land development | Substandard
Loans and Allowance for Loan Losses
Total loans	3,879	4,645	4,860
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	949,870	714,715	630,437
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Pass
Loans and Allowance for Loan Losses
Total loans	939,125	701,150	615,521
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Special mention
Loans and Allowance for Loan Losses
Total loans	8,475	11,434	11,499
Commercial non-owner occupied real estate | Non-acquired loans | Other commercial non-owner occupied real estate | Substandard
Loans and Allowance for Loan Losses
Total loans	2,270	2,131	3,417
Commercial non-owner occupied real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	199,704		35,775
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	276,590	44,718	46,458
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	76,886		10,683
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	76,886	10,090	10,683
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	74,665	8,997	9,562
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,403	253	278
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Construction and land development | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	818	840	843
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	199,704	34,628	35,775
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	195,808	28,368	29,509
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	3,806	6,171	6,173
Commercial non-owner occupied real estate | Acquired non-credit impaired loans | Other commercial non-owner occupied real estate | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	90	89	93
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	46,248		47,081
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	46,248	44,373	47,081
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	26,666	21,150	20,889
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	6,455	12,643	14,092
Commercial non-owner occupied real estate | Acquired credit impaired loans | Construction and land development | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	13,127	10,580	12,100
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	199,082		220,489
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	199,082	210,204	220,489
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	152,305		164,737
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	22,638		32,081
Commercial non-owner occupied real estate | Acquired credit impaired loans | Other commercial non-owner occupied real estate | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	24,139		23,671
Commercial owner occupied real estate loan | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,278,487	1,177,745	1,153,480
Commercial owner occupied real estate loan | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	1,247,881	1,149,417	1,118,421
Commercial owner occupied real estate loan | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	24,277	22,133	26,429
Commercial owner occupied real estate loan | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	6,329	6,195	8,630
Commercial owner occupied real estate loan | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	207,572		29,444
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	207,572	27,195	29,444
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	201,498	26,920	28,926
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	4,048
Commercial owner occupied real estate loan | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	2,026	275	518
Consumer real estate | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	1,874,518	1,580,839	1,547,266
Consumer real estate | Non-acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	419,760	383,218	363,825
Consumer real estate | Non-acquired loans | Home equity loans | Pass
Loans and Allowance for Loan Losses
Total loans	405,945	368,655	349,382
Consumer real estate | Non-acquired loans | Home equity loans | Special mention
Loans and Allowance for Loan Losses
Total loans	7,346	8,145	8,493
Consumer real estate | Non-acquired loans | Home equity loans | Substandard
Loans and Allowance for Loan Losses
Total loans	6,469	6,418	5,950
Consumer real estate | Non-acquired loans | Consumer
Loans and Allowance for Loan Losses
Total loans	2,258,921	1,918,481	1,864,740
Consumer real estate | Non-acquired loans | Consumer | Pass
Loans and Allowance for Loan Losses
Total loans	2,216,126	1,872,481	1,820,767
Consumer real estate | Non-acquired loans | Consumer | Special mention
Loans and Allowance for Loan Losses
Total loans	22,576	23,896	23,474
Consumer real estate | Non-acquired loans | Consumer | Substandard
Loans and Allowance for Loan Losses
Total loans	20,219	22,104	20,499
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	1,454,758	1,197,621	1,183,441
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans | Pass
Loans and Allowance for Loan Losses
Total loans	1,427,278	1,167,768	1,155,481
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans | Special mention
Loans and Allowance for Loan Losses
Total loans	14,914	15,283	14,370
Consumer real estate | Non-acquired loans | Consumer Owner Occupied Loans | Substandard
Loans and Allowance for Loan Losses
Total loans	12,566	14,570	13,590
Consumer real estate | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	656,906	569,149	603,890
Consumer real estate | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	774,816	696,199	735,978
Consumer real estate | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	8,720	6,541	7,217
Consumer real estate | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	9,506	9,063	9,207
Consumer real estate | Acquired non-credit impaired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	164,291		168,758
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	164,291	160,879	168,758
Consumer real estate | Acquired non-credit impaired loans | Home equity loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	154,461	151,752	158,672
Consumer real estate | Acquired non-credit impaired loans | Home equity loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	5,077	4,113	5,340
Consumer real estate | Acquired non-credit impaired loans | Home equity loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	4,753	5,014	4,746
Consumer real estate | Acquired non-credit impaired loans | Consumer
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	136,136	142,654	148,512
Consumer real estate | Acquired non-credit impaired loans | Consumer | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	132,962	139,686	145,594
Consumer real estate | Acquired non-credit impaired loans | Consumer | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,141	1,102	1,118
Consumer real estate | Acquired non-credit impaired loans | Consumer | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	2,033	1,866	1,800
Consumer real estate | Acquired non-credit impaired loans | Other Consumer
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	793,042	711,803	752,402
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans
Loans and Allowance for Loan Losses
Total loans	492,615		435,132
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	492,615	408,270	435,132
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	487,393	404,761	431,712
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	2,502	1,326	759
Consumer real estate | Acquired non-credit impaired loans | Consumer Owner Occupied Loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	2,720	2,183	2,661
Consumer real estate | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	53,302		61,866
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	53,302	59,300	61,866
Commercial and industrial | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	781,757	671,398	617,525
Commercial and industrial | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	770,975	655,157	604,058
Commercial and industrial | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	8,894	14,325	11,246
Commercial and industrial | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	1,888	1,916	2,221
Commercial and industrial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	101,427		14,201
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	101,427	13,641	14,201
Commercial and industrial | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	95,523	13,475	14,016
Commercial and industrial | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	5,385	117	122
Commercial and industrial | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	519	49	63
Commercial and industrial | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	25,796		26,658
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	25,796	25,347	26,658
Commercial and industrial | Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	15,755	17,371	18,715
Commercial and industrial | Acquired credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,397	4,614	4,476
Commercial and industrial | Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	8,644	3,362	3,467
Other income producing property | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	194,335	178,238	179,595
Other income producing property | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	186,639	167,025	165,451
Other income producing property | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	6,090	9,280	12,099
Other income producing property | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	1,606	1,933	2,045
Other income producing property | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	76,924		43,152
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	76,924	39,342	43,152
Other income producing property | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	74,994	38,361	42,159
Other income producing property | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	1,208	273	276
Other income producing property | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	722	708	717
Consumer | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	371,758	324,238	305,687
Consumer | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	370,258	322,654	304,117
Consumer | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	316	468	611
Consumer | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	1,184	1,116	959
Consumer | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Total loans	136,136		148,512
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	136,136	142,654	148,512
Consumer | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	53,302	59,300	61,866
Consumer | Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	8,261	8,513	9,072
Consumer | Acquired credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	17,733	19,685	20,635
Consumer | Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	27,308	31,102	32,159
Commercial | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	3,971,406	3,322,560	3,143,373
Commercial | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	3,900,253	3,240,147	3,052,435
Commercial | Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	55,181	65,593	69,765
Commercial | Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	15,972	16,820	21,173
Commercial | Acquired non-credit impaired loans
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	662,513	124,896	133,255
Commercial | Acquired non-credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	642,488	116,121	124,172
Commercial | Acquired non-credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	15,850	6,814	6,849
Commercial | Acquired non-credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	4,175	1,961	2,234
Other loans | Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	12,645	13,404	11,787
Other loans | Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	12,645	13,404	11,787
Commercial loans 1000000 or more | Acquired credit impaired loans
Loans and Allowance for Loan Losses
Total loans	8,439		10,958
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	8,439	8,617	10,958
Commercial loans 1000000 or more | Acquired credit impaired loans | Pass
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	8,120	8,297	9,616
Commercial loans 1000000 or more | Acquired credit impaired loans | Special mention
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance			1,000
Commercial loans 1000000 or more | Acquired credit impaired loans | Substandard
Loans and Allowance for Loan Losses
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance	$ 319	$ 320	$ 342