Loans - Risk Category of Loans After Adoption of CECL (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	$ 362,586	$ 1,537,184
2020/2019	1,475,286	834,164
2019/2018	809,398	594,181
2018/2017	565,318	585,062
2017/2016	563,216	522,144
Pre-2017/2016	1,818,490	1,397,462
Revolving Loans	509,106	547,612
Revolving to Term	5,546	3,423
Loans, net of deferred fees	6,108,946	6,021,232
Non owner occupied commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	49,980	574,835
2020/2019	559,857	380,450
2019/2018	373,528	237,615
2018/2017	225,080	282,705
2017/2016	279,532	241,964
Pre-2017/2016	840,025	625,850
Revolving Loans	44,877	53,281
Revolving to Term	2,145	2,246
Loans, net of deferred fees	2,375,024	2,398,946
Non owner occupied commercial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	49,980	570,665
2020/2019	555,372	376,681
2019/2018	363,885	217,931
2018/2017	202,094	251,751
2017/2016	248,758	187,605
Pre-2017/2016	681,691	509,573
Revolving Loans	44,550	50,071
Revolving to Term	2,115	2,246
Loans, net of deferred fees	2,148,445	2,166,523
Non owner occupied commercial | Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	770
2020/2019	200	638
2019/2018	6,531	8,498
2018/2017	11,985	5,936
2017/2016	5,880	19,579
Pre-2017/2016	63,270	47,680
Revolving Loans	247	315
Revolving to Term	0	0
Loans, net of deferred fees	88,113	83,416
Non owner occupied commercial | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	3,400
2020/2019	3,384	3,131
2019/2018	3,112	8,377
2018/2017	8,343	9,115
2017/2016	9,047	19,936
Pre-2017/2016	22,541	7,894
Revolving Loans	80	2,895
Revolving to Term	0	0
Loans, net of deferred fees	46,507	54,748
Non owner occupied commercial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	901	0
2019/2018	0	2,809
2018/2017	2,658	15,903
2017/2016	15,847	14,844
Pre-2017/2016	72,523	60,703
Revolving Loans	0	0
Revolving to Term	30	0
Loans, net of deferred fees	91,959	94,259
Owner occupied commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	61,379	128,293
2020/2019	119,712	101,390
2019/2018	105,426	84,622
2018/2017	83,592	85,620
2017/2016	83,480	80,243
Pre-2017/2016	394,670	334,956
Revolving Loans	9,061	11,789
Revolving to Term	186	179
Loans, net of deferred fees	857,506	827,092
Owner occupied commercial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	61,379	116,512
2020/2019	118,138	76,224
2019/2018	80,308	80,244
2018/2017	78,770	81,215
2017/2016	81,400	62,118
Pre-2017/2016	299,935	245,330
Revolving Loans	8,217	11,072
Revolving to Term	175	179
Loans, net of deferred fees	728,322	672,894
Owner occupied commercial | Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	11,347
2020/2019	1,574	22,932
2019/2018	22,907	411
2018/2017	904	3,651
2017/2016	0	8,038
Pre-2017/2016	22,279	23,612
Revolving Loans	800	673
Revolving to Term	0	0
Loans, net of deferred fees	48,464	70,664
Owner occupied commercial | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	2,218
2019/2018	2,211	929
2018/2017	923	113
2017/2016	109	4,317
Pre-2017/2016	41,790	38,638
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	45,033	46,215
Owner occupied commercial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	434
2020/2019	0	16
2019/2018	0	3,038
2018/2017	2,995	641
2017/2016	1,971	5,770
Pre-2017/2016	30,666	27,376
Revolving Loans	44	44
Revolving to Term	11	0
Loans, net of deferred fees	35,687	37,319
Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	34,418	261,489
2020/2019	262,907	65,175
2019/2018	65,125	86,348
2018/2017	104,177	95,767
2017/2016	90,821	126,667
Pre-2017/2016	279,789	156,066
Revolving Loans	20,931	21,713
Revolving to Term	0	0
Loans, net of deferred fees	858,168	813,225
Multifamily | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	34,418	251,708
2020/2019	253,176	59,694
2019/2018	59,642	85,748
2018/2017	103,577	93,368
2017/2016	85,258	117,155
Pre-2017/2016	260,562	145,786
Revolving Loans	20,931	21,713
Revolving to Term	0	0
Loans, net of deferred fees	817,564	775,172
Multifamily | Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	600
2018/2017	600	0
2017/2016	3,164	0
Pre-2017/2016	8,413	8,472
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	12,177	9,072
Multifamily | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	9,781
2020/2019	9,731	0
2019/2018	0	0
2018/2017	0	2,399
2017/2016	2,399	0
Pre-2017/2016	1,113	1,124
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	13,243	13,304
Multifamily | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	5,481
2019/2018	5,483	0
2018/2017	0	0
2017/2016	0	9,512
Pre-2017/2016	9,701	684
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	15,184	15,677
Non owner occupied residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	7,245	24,382
2020/2019	24,704	25,686
2019/2018	25,272	30,151
2018/2017	26,362	27,205
2017/2016	26,020	22,473
Pre-2017/2016	76,517	61,326
Revolving Loans	8,591	8,835
Revolving to Term	823	171
Loans, net of deferred fees	195,534	200,229
Non owner occupied residential | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	7,245	23,506
2020/2019	23,958	24,378
2019/2018	23,965	27,752
2018/2017	24,219	24,344
2017/2016	23,282	21,488
Pre-2017/2016	68,676	53,200
Revolving Loans	8,076	8,180
Revolving to Term	823	171
Loans, net of deferred fees	180,244	183,019
Non owner occupied residential | Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	300
2019/2018	299	0
2018/2017	0	1,174
2017/2016	1,074	0
Pre-2017/2016	5,361	5,757
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	6,734	7,231
Non owner occupied residential | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	496
2019/2018	496	1,199
2018/2017	916	392
2017/2016	498	293
Pre-2017/2016	941	656
Revolving Loans	515	655
Revolving to Term	0	0
Loans, net of deferred fees	3,366	3,691
Non owner occupied residential | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	876
2020/2019	746	512
2019/2018	512	1,200
2018/2017	1,227	1,295
2017/2016	1,166	692
Pre-2017/2016	1,539	1,713
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	5,190	6,288
Commercial, industrial and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	130,518	306,555
2020/2019	243,932	88,668
2019/2018	75,366	20,844
2018/2017	18,184	11,170
2017/2016	9,741	22,431
Pre-2017/2016	46,124	42,998
Revolving Loans	214,530	224,992
Revolving to Term	2,171	531
Loans, net of deferred fees	740,566	718,189
Commercial, industrial and other | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	130,518	299,091
2020/2019	236,340	84,917
2019/2018	74,724	16,245
2018/2017	14,621	7,216
2017/2016	5,978	18,358
Pre-2017/2016	40,974	41,900
Revolving Loans	193,086	208,519
Revolving to Term	408	531
Loans, net of deferred fees	696,649	676,777
Commercial, industrial and other | Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	287
2020/2019	285	3,701
2019/2018	592	156
2018/2017	132	1,643
2017/2016	1,579	301
Pre-2017/2016	603	369
Revolving Loans	11,776	2,324
Revolving to Term	0	0
Loans, net of deferred fees	14,967	8,781
Commercial, industrial and other | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	884
2018/2017	788	764
2017/2016	651	2,275
Pre-2017/2016	2,534	0
Revolving Loans	4,684	4,727
Revolving to Term	0	0
Loans, net of deferred fees	8,657	8,650
Commercial, industrial and other | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	7,177
2020/2019	7,307	50
2019/2018	50	3,559
2018/2017	2,643	1,547
2017/2016	1,533	1,497
Pre-2017/2016	2,013	729
Revolving Loans	4,984	9,422
Revolving to Term	1,763	0
Loans, net of deferred fees	20,293	23,981
Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	17,527	56,734
2020/2019	88,821	77,117
2019/2018	82,098	71,810
2018/2017	50,517	49,789
2017/2016	46,112	8,400
Pre-2017/2016	5,847	843
Revolving Loans	330	2,190
Revolving to Term	0	0
Loans, net of deferred fees	291,252	266,883
Construction | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	17,527	56,734
2020/2019	88,821	77,117
2019/2018	82,098	69,627
2018/2017	48,338	29,303
2017/2016	24,190	7,681
Pre-2017/2016	5,332	328
Revolving Loans	330	2,190
Revolving to Term	0	0
Loans, net of deferred fees	266,636	242,980
Construction | Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	2,183
2018/2017	2,179	11,959
2017/2016	12,866	0
Pre-2017/2016	0	0
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	15,045	14,142
Construction | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	8,321
2017/2016	8,853	0
Pre-2017/2016	0	0
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	8,853	8,321
Construction | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	206
2017/2016	203	719
Pre-2017/2016	515	515
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	718	1,440
Equipment finance
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	14,135	41,528
2020/2019	38,700	41,815
2019/2018	38,653	20,785
2018/2017	18,041	8,908
2017/2016	7,408	3,226
Pre-2017/2016	2,491	428
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	119,428	116,690
Equipment finance | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	14,135	41,528
2020/2019	38,700	41,717
2019/2018	38,555	20,697
2018/2017	17,934	8,834
2017/2016	7,314	3,162
Pre-2017/2016	2,491	426
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	119,129	116,364
Equipment finance | Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Pre-2017/2016	0	0
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	0	0
Equipment finance | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Pre-2017/2016	0	0
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	0	0
Equipment finance | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	98
2019/2018	98	88
2018/2017	107	74
2017/2016	94	64
Pre-2017/2016	0	2
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	299	326
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	43,620	127,336
2020/2019	121,557	43,962
2019/2018	35,210	34,485
2018/2017	32,389	18,563
2017/2016	15,298	12,108
Pre-2017/2016	137,704	140,926
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	385,778	377,380
Residential mortgage | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	43,620	127,336
2020/2019	121,557	43,910
2019/2018	35,159	34,252
2018/2017	32,159	17,548
2017/2016	14,558	12,108
Pre-2017/2016	136,258	139,616
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	383,311	374,770
Residential mortgage | Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Pre-2017/2016	0	0
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	0	0
Residential mortgage | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Pre-2017/2016	0	0
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	0	0
Residential mortgage | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	52
2019/2018	51	233
2018/2017	230	1,015
2017/2016	740	0
Pre-2017/2016	1,446	1,310
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	2,467	2,610
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	3,764	16,032
2020/2019	15,096	9,901
2019/2018	8,720	7,521
2018/2017	6,976	5,335
2017/2016	4,804	4,632
Pre-2017/2016	35,323	34,069
Revolving Loans	210,786	224,812
Revolving to Term	221	296
Loans, net of deferred fees	285,690	302,598
Consumer | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	3,764	15,999
2020/2019	15,063	9,844
2019/2018	8,664	7,490
2018/2017	6,846	5,333
2017/2016	4,803	4,632
Pre-2017/2016	33,285	31,861
Revolving Loans	210,525	224,549
Revolving to Term	0	166
Loans, net of deferred fees	282,950	299,874
Consumer | Watch
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Pre-2017/2016	0	0
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	0	0
Consumer | Special mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
2018/2017	0	0
2017/2016	0	0
Pre-2017/2016	0	0
Revolving Loans	0	0
Revolving to Term	0	0
Loans, net of deferred fees	0	0
Consumer | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
2021/2020	0	33
2020/2019	33	57
2019/2018	56	31
2018/2017	130	2
2017/2016	1	0
Pre-2017/2016	2,038	2,208
Revolving Loans	261	263
Revolving to Term	221	130
Loans, net of deferred fees	$ 2,740	$ 2,724