Loans and Allowance for Credit Losses - Risk category of loans by loan segment (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2023	Dec. 31, 2022
Loan Balances
2023	$ 493,055
2022	1,268,736
2021	952,795
2020	423,877
2019	167,503
Prior	137,594
Revolving	278,711
Totals	3,722,271	$ 3,569,446
Write-offs
2023	98
Revolving	31
Total	129
Pass
Loan Balances
Totals		3,509,145
Watch
Loan Balances
Totals		32,252
Substandard
Loan Balances
Totals		28,049
Commercial
Loan Balances
2023	47,590
2022	153,488
2021	39,456
2020	25,556
2019	19,021
Prior	6,593
Revolving	167,359
Totals	459,063	435,344
Write-offs
2023	96
Total	96
Commercial \| Pass
Loan Balances
2023	47,507
2022	141,694
2021	39,407
2020	25,556
2019	19,018
Prior	4,735
Revolving	160,955
Totals	438,872	406,192
Commercial \| Watch
Loan Balances
2023	7
2022	332
2021	38
2019	3
Prior	1,796
Revolving	2,184
Totals	4,360	9,477
Commercial \| Substandard
Loan Balances
2023	76
2022	11,462
2021	11
Prior	62
Revolving	4,220
Totals	15,831	19,675
Paycheck Protection Program (PPP), CARES Act
Loan Balances
2021	791
Totals	791	1,049
Paycheck Protection Program (PPP), CARES Act \| Pass
Loan Balances
2021	791
Totals	791	1,049
Construction and Land Development
Loan Balances
2023	37,814
2022	194,229
2021	48,288
2020	5,021
Prior	91
Revolving	9,375
Totals	294,818	295,554
Construction and Land Development \| Pass
Loan Balances
2023	37,814
2022	194,143
2021	48,288
2020	5,021
Prior	91
Revolving	9,375
Totals	294,732	294,736
Construction and Land Development \| Watch
Loan Balances
Totals		712
Construction and Land Development \| Substandard
Loan Balances
2022	86
Totals	86	106
1-4 Family Construction
Loan Balances
2023	33,966
2022	13,594
2021	935
2020	358
Revolving	15,610
Totals	64,463	70,242
1-4 Family Construction \| Pass
Loan Balances
2023	33,966
2022	13,594
2021	935
2020	358
Revolving	15,610
Totals	64,463	70,242
Real Estate Mortgage
Loan Balances
2023	370,941
2022	907,135
2021	863,315
2020	391,441
2019	148,471
Prior	130,910
Revolving	81,920
Totals	2,894,133	2,759,125
1-4 Family Mortgage
Loan Balances
2023	61,412
2022	109,495
2021	87,381
2020	55,250
2019	19,059
Prior	5,544
Revolving	66,575
Totals	404,716	355,474
1-4 Family Mortgage \| Pass
Loan Balances
2023	61,412
2022	109,495
2021	87,381
2020	55,250
2019	19,059
Prior	4,880
Revolving	66,575
Totals	404,052
1-4 Family Mortgage \| Watch
Loan Balances
Prior	1
Totals	1
1-4 Family Mortgage \| Substandard
Loan Balances
Prior	663
Totals	663
HELOC and 1-4 Family Junior Mortgage
Loan Balances
Totals		36,875
HELOC and 1-4 Family Junior Mortgage \| Pass
Loan Balances
Totals		36,875
1st REM - 1-4 Family
Loan Balances
Totals		50,945
1st REM - 1-4 Family \| Pass
Loan Balances
Totals		50,271
1st REM - 1-4 Family \| Watch
Loan Balances
Totals		674
LOCs and 2nd REM - Rentals
Loan Balances
Totals		27,985
LOCs and 2nd REM - Rentals \| Pass
Loan Balances
Totals		27,978
LOCs and 2nd REM - Rentals \| Watch
Loan Balances
Totals		7
1st REM - Rentals
Loan Balances
Totals		239,669
1st REM - Rentals \| Pass
Loan Balances
Totals		239,277
1st REM - Rentals \| Substandard
Loan Balances
Totals		392
Multifamily
Loan Balances
2023	139,000
2022	437,174
2021	473,938
2020	230,980
2019	42,344
Prior	46,635
Revolving	8,598
Totals	1,378,669	1,306,738
Multifamily \| Pass
Loan Balances
2023	136,071
2022	437,174
2021	473,938
2020	230,980
2019	42,344
Prior	46,635
Revolving	8,598
Totals	1,375,740	1,303,468
Multifamily \| Watch
Loan Balances
2023	2,929
Totals	2,929	3,270
CRE Owner Occupied
Loan Balances
2023	31,290
2022	48,727
2021	41,768
2020	20,827
2019	5,076
Prior	10,603
Revolving	1,194
Totals	159,485	149,905
CRE Owner Occupied \| Pass
Loan Balances
2023	31,090
2022	48,727
2021	41,274
2020	20,827
2019	5,076
Prior	9,728
Revolving	1,194
Totals	157,916	148,268
CRE Owner Occupied \| Substandard
Loan Balances
2023	200
2021	494
Prior	875
Totals	1,569	1,637
CRE Non-owner Occupied
Loan Balances
2023	139,239
2022	311,739
2021	260,228
2020	84,384
2019	81,992
Prior	68,128
Revolving	5,553
Totals	951,263	947,008
CRE Non-owner Occupied \| Pass
Loan Balances
2023	123,283
2022	297,158
2021	256,990
2020	84,384
2019	78,708
Prior	68,128
Revolving	5,553
Totals	914,204	922,657
CRE Non-owner Occupied \| Watch
Loan Balances
2023	6,176
2022	10,173
2021	3,238
Totals	19,587	18,112
CRE Non-owner Occupied \| Substandard
Loan Balances
2023	9,780
2022	4,408
2019	3,284
Totals	17,472	6,239
Consumer and other
Loan Balances
2023	2,744
2022	290
2021	10
2020	1,501
2019	11
Revolving	4,447
Totals	9,003	8,132
Write-offs
2023	2
Revolving	31
Total	33
Consumer and other \| Pass
Loan Balances
2023	2,744
2022	290
2021	10
2020	1,501
2019	11
Revolving	4,447
Totals	$ 9,003	$ 8,132

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

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-Topic 326
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