Loans and Allowance for Loan Losses ("ALLL") - Loan Aging Analysis (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
2022	$ 297,233
2021	1,086,026
2020	574,140
2019	324,390
2018	231,377
2017 and Prior	179,454
Revolving loans	1,452,020
Revolving loans converted to term loans	204,928
Total Loans Receivable	4,349,568	$ 4,256,213
Loans >= 90 Days and Accruing		90
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	745
2020	3
2019	5
2018	4
2017 and Prior	0
Revolving loans	14,024
Revolving loans converted to term loans	0
Total Loans Receivable	14,781
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	644
2020	0
2019	10
2018	83
2017 and Prior	98
Revolving loans	300
Revolving loans converted to term loans	0
Total Loans Receivable	1,135
Greater than 90 Days
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	1,494
2018	468
2017 and Prior	662
Revolving loans	8,097
Revolving loans converted to term loans	40
Total Loans Receivable	10,761
Total past due
Financing Receivable, Past Due [Line Items]
2022	0
2021	1,389
2020	3
2019	1,509
2018	555
2017 and Prior	760
Revolving loans	22,421
Revolving loans converted to term loans	40
Total Loans Receivable	26,677
Current
Financing Receivable, Past Due [Line Items]
2022	297,233
2021	1,084,637
2020	574,137
2019	322,881
2018	230,822
2017 and Prior	178,694
Revolving loans	1,429,599
Revolving loans converted to term loans	204,888
Total Loans Receivable	4,322,891
Greater Than 90 Days And Accruing
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	1,494
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	40
Total Loans Receivable	1,534
Commercial
Financing Receivable, Past Due [Line Items]
2022	86,847
2021	374,485
2020	135,543
2019	66,303
2018	64,528
2017 and Prior	30,489
Revolving loans	0
Revolving loans converted to term loans	44,579
Total Loans Receivable	802,774	843,024
Loans >= 90 Days and Accruing		90
Commercial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	3
2019	5
2018	4
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	12
Commercial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	10
2018	0
2017 and Prior	98
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	108
Commercial | Greater than 90 Days
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	468
2017 and Prior	662
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	1,130
Commercial | Total past due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	3
2019	15
2018	472
2017 and Prior	760
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	1,250
Commercial | Current
Financing Receivable, Past Due [Line Items]
2022	86,847
2021	374,485
2020	135,540
2019	66,288
2018	64,056
2017 and Prior	29,729
Revolving loans	0
Revolving loans converted to term loans	44,579
Total Loans Receivable	801,524
Commercial | Greater Than 90 Days And Accruing
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Commercial line of credit
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	678,127
Revolving loans converted to term loans	0
Total Loans Receivable	678,127	617,398
Commercial line of credit | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	11,910
Revolving loans converted to term loans	0
Total Loans Receivable	11,910
Commercial line of credit | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	300
Revolving loans converted to term loans	0
Total Loans Receivable	300
Commercial line of credit | Greater than 90 Days
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Commercial line of credit | Total past due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	12,210
Revolving loans converted to term loans	0
Total Loans Receivable	12,210
Commercial line of credit | Current
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	665,917
Revolving loans converted to term loans	0
Total Loans Receivable	665,917
Commercial line of credit | Greater Than 90 Days And Accruing
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Energy
Financing Receivable, Past Due [Line Items]
2022	0
2021	1,382
2020	264
2019	1,557
2018	13
2017 and Prior	0
Revolving loans	267,872
Revolving loans converted to term loans	221
Total Loans Receivable	271,309	278,579
Loans >= 90 Days and Accruing		0
Energy | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	2,114
Revolving loans converted to term loans	0
Total Loans Receivable	2,114
Energy | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Energy | Greater than 90 Days
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	1,494
2018	0
2017 and Prior	0
Revolving loans	8,097
Revolving loans converted to term loans	0
Total Loans Receivable	9,591
Energy | Total past due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	1,494
2018	0
2017 and Prior	0
Revolving loans	10,211
Revolving loans converted to term loans	0
Total Loans Receivable	11,705
Energy | Current
Financing Receivable, Past Due [Line Items]
2022	0
2021	1,382
2020	264
2019	63
2018	13
2017 and Prior	0
Revolving loans	257,661
Revolving loans converted to term loans	221
Total Loans Receivable	259,604
Energy | Greater Than 90 Days And Accruing
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	1,494
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	1,494
Commercial real estate
Financing Receivable, Past Due [Line Items]
2022	85,098
2021	351,190
2020	158,337
2019	121,898
2018	89,647
2017 and Prior	103,684
Revolving loans	330,590
Revolving loans converted to term loans	135,211
Total Loans Receivable	1,375,655	1,278,479
Loans >= 90 Days and Accruing		0
Commercial real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Commercial real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	277
2020	0
2019	0
2018	83
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	360
Commercial real estate | Greater than 90 Days
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Commercial real estate | Total past due
Financing Receivable, Past Due [Line Items]
2022	0
2021	277
2020	0
2019	0
2018	83
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	360
Commercial real estate | Current
Financing Receivable, Past Due [Line Items]
2022	85,098
2021	350,913
2020	158,337
2019	121,898
2018	89,564
2017 and Prior	103,684
Revolving loans	330,590
Revolving loans converted to term loans	135,211
Total Loans Receivable	1,375,295
Commercial real estate | Greater Than 90 Days And Accruing
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Construction and land development
Financing Receivable, Past Due [Line Items]
2022	86,020
2021	228,922
2020	141,357
2019	73,650
2018	20,346
2017 and Prior	4,611
Revolving loans	8,632
Revolving loans converted to term loans	0
Total Loans Receivable	563,538	574,852
Loans >= 90 Days and Accruing		0
Construction and land development | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	553
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	553
Construction and land development | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Construction and land development | Greater than 90 Days
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Construction and land development | Total past due
Financing Receivable, Past Due [Line Items]
2022	0
2021	553
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	553
Construction and land development | Current
Financing Receivable, Past Due [Line Items]
2022	86,020
2021	228,369
2020	141,357
2019	73,650
2018	20,346
2017 and Prior	4,611
Revolving loans	8,632
Revolving loans converted to term loans	0
Total Loans Receivable	562,985
Construction and land development | Greater Than 90 Days And Accruing
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Residential real estate
Financing Receivable, Past Due [Line Items]
2022	12,954
2021	80,786
2020	129,918
2019	48,600
2018	53,487
2017 and Prior	38,565
Revolving loans	1,208
Revolving loans converted to term loans	201
Total Loans Receivable	365,719	360,046
Residential real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Residential real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	217
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	217
Residential real estate | Greater than 90 Days
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Residential real estate | Total past due
Financing Receivable, Past Due [Line Items]
2022	0
2021	217
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	217
Residential real estate | Current
Financing Receivable, Past Due [Line Items]
2022	12,954
2021	80,569
2020	129,918
2019	48,600
2018	53,487
2017 and Prior	38,565
Revolving loans	1,208
Revolving loans converted to term loans	201
Total Loans Receivable	365,502
Residential real estate | Greater Than 90 Days And Accruing
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Multifamily real estate
Financing Receivable, Past Due [Line Items]
2022	25,829
2021	46,511
2020	6,733
2019	12,134
2018	3,238
2017 and Prior	1,961
Revolving loans	121,985
Revolving loans converted to term loans	24,716
Total Loans Receivable	243,107	240,230
Multifamily real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	192
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	192
Multifamily real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	150
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	150
Multifamily real estate | Greater than 90 Days
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	40
Total Loans Receivable	40
Multifamily real estate | Total past due
Financing Receivable, Past Due [Line Items]
2022	0
2021	342
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	40
Total Loans Receivable	382
Multifamily real estate | Current
Financing Receivable, Past Due [Line Items]
2022	25,829
2021	46,169
2020	6,733
2019	12,134
2018	3,238
2017 and Prior	1,961
Revolving loans	121,985
Revolving loans converted to term loans	24,676
Total Loans Receivable	242,725
Multifamily real estate | Greater Than 90 Days And Accruing
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	40
Total Loans Receivable	40
Paycheck Protection Program ("PPP")
Financing Receivable, Past Due [Line Items]
Loans >= 90 Days and Accruing		0
Consumer
Financing Receivable, Past Due [Line Items]
2022	485
2021	2,750
2020	1,988
2019	248
2018	118
2017 and Prior	144
Revolving loans	43,606
Revolving loans converted to term loans	0
Total Loans Receivable	49,339	63,605
Loans >= 90 Days and Accruing		$ 0
Consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Consumer | Greater than 90 Days
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Consumer | Total past due
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Consumer | Current
Financing Receivable, Past Due [Line Items]
2022	485
2021	2,750
2020	1,988
2019	248
2018	118
2017 and Prior	144
Revolving loans	43,606
Revolving loans converted to term loans	0
Total Loans Receivable	49,339
Consumer | Greater Than 90 Days And Accruing
Financing Receivable, Past Due [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	$ 0