Loans - Payment Status by Class of Loan (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Current	$ 3,687,618	$ 3,619,453
Total Past Due	3,711,717	3,644,617
Total Past Due Loans	6,465	8,681
Total Loans	3,694,083	3,628,134
30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	5,552	7,892
60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	806	644
90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	107	145
Commercial
Financing Receivable, Past Due [Line Items]
Current	2,250,694	2,203,431
Total Past Due	2,259,327	2,213,945
Total Past Due Loans	1,357	3,608
Total Loans	2,252,051	2,207,039
Commercial \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,357	3,529
Commercial \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	79
Commercial \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial \| Owner occupied real estate
Financing Receivable, Past Due [Line Items]
Current	568,801	555,851
Total Past Due	573,669	560,887
Total Past Due Loans	680	789
Total Loans	569,481	556,640
Commercial \| Owner occupied real estate \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	680	789
Commercial \| Owner occupied real estate \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial \| Owner occupied real estate \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial \| Non–owner occupied real estate
Financing Receivable, Past Due [Line Items]
Current	1,112,170	1,085,716
Total Past Due	1,113,198	1,088,470
Total Past Due Loans	112	1,708
Total Loans	1,112,282	1,087,424
Commercial \| Non–owner occupied real estate \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	112	1,708
Commercial \| Non–owner occupied real estate \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial \| Non–owner occupied real estate \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial \| Residential spec homes
Financing Receivable, Past Due [Line Items]
Current	11,115	9,907
Total Past Due	11,115	9,907
Total Past Due Loans	0	0
Total Loans	11,115	9,907
Commercial \| Residential spec homes \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial \| Residential spec homes \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial \| Residential spec homes \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial \| Development & spec land
Financing Receivable, Past Due [Line Items]
Current	23,410	23,496
Total Past Due	24,225	24,473
Total Past Due Loans	0	58
Total Loans	23,410	23,554
Commercial \| Development & spec land \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	58
Commercial \| Development & spec land \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial \| Development & spec land \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial \| Commercial and industrial
Financing Receivable, Past Due [Line Items]
Current	535,198	528,461
Total Past Due	537,120	530,208
Total Past Due Loans	565	1,053
Total Loans	535,763	529,514
Commercial \| Commercial and industrial \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	565	974
Commercial \| Commercial and industrial \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	79
Commercial \| Commercial and industrial \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Real estate
Financing Receivable, Past Due [Line Items]
Current	689,639	695,730
Total Past Due	698,490	703,413
Total Past Due Loans	1,707	1,165
Total Loans	691,346	696,895
Real estate \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,421	834
Real estate \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	286	265
Real estate \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	66
Real estate \| Residential mortgage
Financing Receivable, Past Due [Line Items]
Current	549,343	556,128
Total Past Due	558,194	563,811
Total Past Due Loans	1,707	1,165
Total Loans	551,050	557,293
Real estate \| Residential mortgage \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,421	834
Real estate \| Residential mortgage \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	286	265
Real estate \| Residential mortgage \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	66
Real estate \| Residential construction
Financing Receivable, Past Due [Line Items]
Current	35,178	30,571
Total Past Due	35,178	30,571
Total Past Due Loans	0	0
Total Loans	35,178	30,571
Real estate \| Residential construction \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Real estate \| Residential construction \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Real estate \| Residential construction \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Real estate \| Mortgage warehouse
Financing Receivable, Past Due [Line Items]
Current	105,118	109,031
Total Past Due	105,118	109,031
Total Past Due Loans	0	0
Total Loans	105,118	109,031
Real estate \| Mortgage warehouse \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Real estate \| Mortgage warehouse \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Real estate \| Mortgage warehouse \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Consumer
Financing Receivable, Past Due [Line Items]
Current	747,285	720,292
Total Past Due	753,900	727,259
Total Past Due Loans	3,401	3,908
Total Loans	750,686	724,200
Consumer \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	2,774	3,529
Consumer \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	520	300
Consumer \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	107	79
Consumer \| Direct installment
Financing Receivable, Past Due [Line Items]
Current	60,359	63,295
Total Past Due	60,578	63,714
Total Past Due Loans	145	412
Total Loans	60,504	63,707
Consumer \| Direct installment \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	119	409
Consumer \| Direct installment \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	22	3
Consumer \| Direct installment \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	4	0
Consumer \| Indirect installment
Financing Receivable, Past Due [Line Items]
Current	392,260	369,615
Total Past Due	395,450	372,575
Total Past Due Loans	2,674	2,422
Total Loans	394,934	372,037
Consumer \| Indirect installment \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	2,162	2,271
Consumer \| Indirect installment \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	410	136
Consumer \| Indirect installment \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	102	15
Consumer \| Home equity
Financing Receivable, Past Due [Line Items]
Current	294,666	287,382
Total Past Due	297,872	290,970
Total Past Due Loans	582	1,074
Total Loans	295,248	288,456
Consumer \| Home equity \| 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	493	849
Consumer \| Home equity \| 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	88	161
Consumer \| Home equity \| 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 1	$ 64

Loans - Payment Status by Class of Loan (Details) - USD ($)
$ in Thousands

Mar. 31, 2022

Dec. 31, 2021

Financing Receivable, Past Due [Line Items]

Current

$ 3,687,618

$ 3,619,453

Total Past Due

3,711,717

3,644,617

Total Past Due Loans

6,465