The recorded balance after any applicable reductions (i.e. outstanding balance net of unamortized accretable yield). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

No definition available.

Allowance for Credit Losses on Loans - Activity in Allowance for Losses Disaggregated on Basis of Impairment (Details) - USD ($) $ in Thousands		3 Months Ended				12 Months Ended
	Jan. 01, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	$ 36,171				$ 35,042	$ 36,171	$ 35,042	$ 32,086
Charge-offs						(5,622)	(4,989)	(3,605)
Recoveries						2,381	1,807	1,432
Provision for credit losses		$ 1,558	$ 466	$ 1,367	920	35,433	4,311	5,129
Balance at the end of the year		36,171				70,185	36,171	35,042
Allowance for credit losses on loans	37,993	36,171				70,185	36,171
Financing Receivable, Individually Evaluated for Impairment		57,481					57,481
Loans Collectively Evaluated for Impairment		3,692,288					3,692,288
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount		18,110					18,110
Loans and Leases Receivable, Gross		3,767,879				4,468,647	3,767,879
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment		2,143					2,143
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment		31,759					31,759
Certain Loans and Debt Securities Acquired in Transfer, Allowance for Credit Losses Due to Subsequent Impairment		2,269					2,269
Cumulative Effect, Period of Adoption, Adjustment
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	1,822				0	1,822	0	0
Balance at the end of the year		1,822					1,822	0
Cumulative Effect, Period of Adoption, Adjusted Balance
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	37,993				35,042	37,993	35,042	32,086
Balance at the end of the year		37,993					37,993	35,042
Accounting Standards Update 2016-13 [Member]
Schedule of allowance for loan losses on the basis of impairment method
Impact of CECL Adoption	5,600
Allowance for credit losses on loans	1,800
Financing Receivable, Allowance for Credit Losses, Effect of Change in Method	1,822
Commercial business
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	23,933				23,711	23,933	23,711	21,999
Charge-offs						(3,751)	(2,692)	(1,400)
Recoveries						1,530	657	908
Provision for credit losses						30,831	2,257	2,204
Balance at the end of the year		23,933				49,608	23,933	23,711
Allowance for credit losses on loans	20,998
Financing Receivable, Individually Evaluated for Impairment		56,468					56,468
Loans Collectively Evaluated for Impairment		2,876,992					2,876,992
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount		12,773					12,773
Loans and Leases Receivable, Gross		2,946,233				3,715,206	2,946,233
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment		1,944					1,944
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment		20,394					20,394
Certain Loans and Debt Securities Acquired in Transfer, Allowance for Credit Losses Due to Subsequent Impairment		1,595					1,595
Commercial business \| Accounting Standards Update 2016-13 [Member]
Schedule of allowance for loan losses on the basis of impairment method
Impact of CECL Adoption	(2,935)
Commercial business \| Commercial and industrial
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	11,739				11,343	11,739	11,343	9,910
Charge-offs							(2,692)	(1,250)
Recoveries							166	901
Provision for credit losses						21,722	2,922	1,782
Balance at the end of the year		11,739				30,010	11,739	11,343
Allowance for credit losses on loans	10,391
Financing Receivable, Allowance for Credit Loss, Writeoff						(3,616)
Financing Receivable, Allowance for Credit Loss, Recovery						1,513
Financing Receivable, Individually Evaluated for Impairment		43,808					43,808
Loans Collectively Evaluated for Impairment		806,044					806,044
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount		2,368					2,368
Loans and Leases Receivable, Gross		852,220					852,220
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment		1,372					1,372
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment		9,772					9,772
Certain Loans and Debt Securities Acquired in Transfer, Allowance for Credit Losses Due to Subsequent Impairment		595					595
Commercial business \| Commercial and industrial \| Accounting Standards Update 2016-13 [Member]
Schedule of allowance for loan losses on the basis of impairment method
Impact of CECL Adoption	(1,348)
Commercial business \| Owner-occupied CRE
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	4,512				4,898	4,512	4,898	3,992
Charge-offs							0	(1)
Recoveries							50	7
Provision for credit losses						4,640	(436)	900
Balance at the end of the year		4,512				9,486	4,512	4,898
Allowance for credit losses on loans	4,964
Financing Receivable, Allowance for Credit Loss, Writeoff						(135)
Financing Receivable, Allowance for Credit Loss, Recovery						17
Financing Receivable, Individually Evaluated for Impairment		6,336					6,336
Loans Collectively Evaluated for Impairment		793,984					793,984
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount		4,914					4,914
Loans and Leases Receivable, Gross		805,234					805,234
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment		426					426
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment		3,558					3,558
Certain Loans and Debt Securities Acquired in Transfer, Allowance for Credit Losses Due to Subsequent Impairment		528					528
Commercial business \| Owner-occupied CRE \| Accounting Standards Update 2016-13 [Member]
Schedule of allowance for loan losses on the basis of impairment method
Impact of CECL Adoption	452
Commercial business \| Non-owner occupied CRE
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	7,682				7,470	7,682	7,470	8,097
Charge-offs							0	(149)
Recoveries							441	0
Provision for credit losses						4,469	(229)	(478)
Balance at the end of the year		7,682				10,112	7,682	7,470
Allowance for credit losses on loans	5,643
Financing Receivable, Allowance for Credit Loss, Writeoff						0
Financing Receivable, Allowance for Credit Loss, Recovery						0
Financing Receivable, Individually Evaluated for Impairment		6,324					6,324
Loans Collectively Evaluated for Impairment		1,276,964					1,276,964
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount		5,491					5,491
Loans and Leases Receivable, Gross		1,288,779					1,288,779
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment		146					146
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment		7,064					7,064
Certain Loans and Debt Securities Acquired in Transfer, Allowance for Credit Losses Due to Subsequent Impairment		472					472
Commercial business \| Non-owner occupied CRE \| Accounting Standards Update 2016-13 [Member]
Schedule of allowance for loan losses on the basis of impairment method
Impact of CECL Adoption	(2,039)
Commercial business \| Paycheck Protection Program [Member]
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	0					0
Provision for credit losses						0
Balance at the end of the year		0				0	0
Allowance for credit losses on loans	0
Financing Receivable, Allowance for Credit Loss, Writeoff						0
Financing Receivable, Allowance for Credit Loss, Recovery						0
Commercial business \| Paycheck Protection Program [Member] \| Accounting Standards Update 2016-13 [Member]
Schedule of allowance for loan losses on the basis of impairment method
Impact of CECL Adoption	0
Residential real estate
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	1,458				1,203	1,458	1,203	1,056
Charge-offs							(60)	(45)
Recoveries							0	0
Provision for credit losses						(1,341)	315	192
Balance at the end of the year		1,458				1,591	1,458	1,203
Allowance for credit losses on loans	2,929
Financing Receivable, Allowance for Credit Loss, Writeoff						0
Financing Receivable, Allowance for Credit Loss, Recovery						3
Financing Receivable, Individually Evaluated for Impairment		215					215
Loans Collectively Evaluated for Impairment		127,870					127,870
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount		3,575					3,575
Loans and Leases Receivable, Gross		131,660					131,660
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment		56					56
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment		1,316					1,316
Certain Loans and Debt Securities Acquired in Transfer, Allowance for Credit Losses Due to Subsequent Impairment		86					86
Residential real estate \| Accounting Standards Update 2016-13 [Member]
Schedule of allowance for loan losses on the basis of impairment method
Impact of CECL Adoption	1,471
Real estate construction and land development
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	3,060				2,194	3,060	2,194	2,052
Charge-offs						(417)	(133)	0
Recoveries						278	637	11
Provision for credit losses						3,502	362	131
Balance at the end of the year		3,060				13,092	3,060	2,194
Allowance for credit losses on loans	9,729
Financing Receivable, Individually Evaluated for Impairment		237					237
Loans Collectively Evaluated for Impairment		274,409					274,409
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount		0					0
Loans and Leases Receivable, Gross		274,646				305,713	274,646
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment		0					0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment		2,823					2,823
Certain Loans and Debt Securities Acquired in Transfer, Allowance for Credit Losses Due to Subsequent Impairment		237					237
Real estate construction and land development \| Accounting Standards Update 2016-13 [Member]
Schedule of allowance for loan losses on the basis of impairment method
Impact of CECL Adoption	6,669
Real estate construction and land development \| Residential
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	1,455				1,240	1,455	1,240	862
Charge-offs							(133)	0
Recoveries							637	11
Provision for credit losses						789	(289)	367
Balance at the end of the year		1,455				1,951	1,455	1,240
Allowance for credit losses on loans	884
Financing Receivable, Allowance for Credit Loss, Writeoff						0
Financing Receivable, Allowance for Credit Loss, Recovery						278
Financing Receivable, Individually Evaluated for Impairment		237					237
Loans Collectively Evaluated for Impairment		104,059					104,059
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount		0					0
Loans and Leases Receivable, Gross		104,296					104,296
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment		0					0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment		1,296					1,296
Certain Loans and Debt Securities Acquired in Transfer, Allowance for Credit Losses Due to Subsequent Impairment		159					159
Real estate construction and land development \| Residential \| Accounting Standards Update 2016-13 [Member]
Schedule of allowance for loan losses on the basis of impairment method
Impact of CECL Adoption	(571)
Real estate construction and land development \| Commercial and multifamily
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	1,605				954	1,605	954	1,190
Charge-offs							0	0
Recoveries							0	0
Provision for credit losses						2,713	651	(236)
Balance at the end of the year		1,605				11,141	1,605	954
Allowance for credit losses on loans	8,845
Financing Receivable, Allowance for Credit Loss, Writeoff						(417)
Financing Receivable, Allowance for Credit Loss, Recovery						0
Financing Receivable, Individually Evaluated for Impairment		0					0
Loans Collectively Evaluated for Impairment		170,350					170,350
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount		0					0
Loans and Leases Receivable, Gross		170,350					170,350
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment		0					0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment		1,527					1,527
Certain Loans and Debt Securities Acquired in Transfer, Allowance for Credit Losses Due to Subsequent Impairment		78					78
Real estate construction and land development \| Commercial and multifamily \| Accounting Standards Update 2016-13 [Member]
Schedule of allowance for loan losses on the basis of impairment method
Impact of CECL Adoption	7,240
Consumer
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	6,821				6,581	6,821	6,581	6,081
Charge-offs							(2,104)	(2,160)
Recoveries							513	513
Provision for credit losses						2,441	1,831	2,147
Balance at the end of the year		6,821				5,894	6,821	6,581
Allowance for credit losses on loans	4,337
Financing Receivable, Allowance for Credit Loss, Writeoff						(1,454)
Financing Receivable, Allowance for Credit Loss, Recovery						570
Financing Receivable, Individually Evaluated for Impairment		561					561
Loans Collectively Evaluated for Impairment		413,017					413,017
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount		1,762					1,762
Loans and Leases Receivable, Gross		415,340					415,340
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment		143					143
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment		6,327					6,327
Certain Loans and Debt Securities Acquired in Transfer, Allowance for Credit Losses Due to Subsequent Impairment		351					351
Consumer \| Accounting Standards Update 2016-13 [Member]
Schedule of allowance for loan losses on the basis of impairment method
Impact of CECL Adoption	(2,484)
Unallocated
Schedule of allowance for loan losses on the basis of impairment method
Balance at the beginning of the year	899				$ 1,353	899	1,353	898
Charge-offs						0	0	0
Recoveries						0	0	0
Provision for credit losses						0	(454)	455
Balance at the end of the year		899				$ 0	899	$ 1,353
Allowance for credit losses on loans	0
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment		899					899
Certain Loans and Debt Securities Acquired in Transfer, Allowance for Credit Losses Due to Subsequent Impairment
Unallocated \| Accounting Standards Update 2016-13 [Member]
Schedule of allowance for loan losses on the basis of impairment method
Impact of CECL Adoption	$ (899)