Investment Securities - Investments Reconciliation (Details) - USD ($)
$ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
| Debt Securities, Available-for-sale [Line Items] |
|
|
| Amortized Cost |
$ 950,523
|
$ 551,191
|
| Unrealized Gains |
18,020
|
31,402
|
| Unrealized Losses |
12,113
|
290
|
| Fair Value |
956,430
|
582,303
|
| U.S. treasury securities |
|
|
| Debt Securities, Available-for-sale [Line Items] |
|
|
| Amortized Cost |
62,850
|
|
| Unrealized Gains |
0
|
|
| Unrealized Losses |
684
|
|
| Fair Value |
62,166
|
|
| Residential federal agency MBS |
|
|
| Debt Securities, Available-for-sale [Line Items] |
|
|
| Amortized Cost |
412,902
|
209,923
|
| Unrealized Gains |
2,406
|
6,339
|
| Unrealized Losses |
9,113
|
287
|
| Fair Value |
406,195
|
215,975
|
| Commercial federal agency MBS |
|
|
| Debt Securities, Available-for-sale [Line Items] |
|
|
| Amortized Cost |
99,681
|
102,468
|
| Unrealized Gains |
3,783
|
7,726
|
| Unrealized Losses |
52
|
0
|
| Fair Value |
103,412
|
110,194
|
| Taxable municipal securities |
|
|
| Debt Securities, Available-for-sale [Line Items] |
|
|
| Amortized Cost |
272,507
|
135,117
|
| Unrealized Gains |
5,607
|
9,293
|
| Unrealized Losses |
2,264
|
3
|
| Fair Value |
275,850
|
144,407
|
| Tax-exempt municipal securities |
|
|
| Debt Securities, Available-for-sale [Line Items] |
|
|
| Amortized Cost |
87,024
|
88,235
|
| Unrealized Gains |
5,648
|
7,216
|
| Unrealized Losses |
0
|
0
|
| Fair Value |
92,672
|
95,451
|
| Corporate bonds |
|
|
| Debt Securities, Available-for-sale [Line Items] |
|
|
| Amortized Cost |
8,559
|
10,448
|
| Unrealized Gains |
441
|
828
|
| Unrealized Losses |
0
|
0
|
| Fair Value |
9,000
|
11,276
|
| Subordinated corporate bonds |
|
|
| Debt Securities, Available-for-sale [Line Items] |
|
|
| Amortized Cost |
7,000
|
5,000
|
| Unrealized Gains |
135
|
0
|
| Unrealized Losses |
0
|
0
|
| Fair Value |
$ 7,135
|
$ 5,000
|