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Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |
Net interest income (expense) | $ 293,431 | $ 241,632 | $ 155,233
Provision (benefit) for credit losses | 18,247 | 18,050 | 3,000
Noninterest income: |  |  |
Service charges on deposit accounts | 21,345 | 18,211 | 12,504
Credit and debit card fees | 12,000 | 11,511 | 9,596
Trust and investment advisory fees | 5,693 | 6,806 | 7,795
(Loss) income from mortgage banking services, net | 31,384 | 46,285 | 86,410
Other noninterest income | 8,670 | 6,753 | 7,939
Total noninterest income | 79,092 | 89,566 | 124,244
Noninterest expense: |  |  |
Salary and employee benefits | 133,231 | 134,359 | 151,926
Occupancy and equipment | 33,426 | 31,344 | 27,628
Other noninterest expenses | 56,136 | 73,423 | 45,081
Total noninterest expense | 222,793 | 239,126 | 224,635
Income (loss) before income taxes | 131,483 | 74,022 | 51,842
Other Information |  |  |
Depreciation expense | 6,553 | 7,118 | 6,118
Identifiable assets | 7,879,724 | 7,430,322 | 5,666,814
Operating Segments | Banking |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income (expense) | 292,573 | 241,840 | 152,515
Provision (benefit) for credit losses | 15,790 | 14,781 | 3,235
Noninterest income: |  |  |
Service charges on deposit accounts | 21,345 | 18,211 | 12,504
Credit and debit card fees | 11,997 | 11,511 | 9,596
Trust and investment advisory fees | 5,693 | 6,806 | 7,795
(Loss) income from mortgage banking services, net | (1,676) | (3,035) | (2,409)
Other noninterest income | 8,670 | 6,762 | 7,946
Total noninterest income | 46,029 | 40,255 | 35,432
Noninterest expense: |  |  |
Salary and employee benefits | 106,030 | 94,310 | 95,064
Occupancy and equipment | 30,461 | 27,407 | 24,558
Other noninterest expenses | 39,165 | 57,082 | 30,297
Total noninterest expense | 175,656 | 178,799 | 149,919
Income (loss) before income taxes | 147,156 | 88,515 | 34,793
Other Information |  |  |
Depreciation expense | 6,320 | 6,754 | 5,728
Identifiable assets | 6,907,741 | 6,633,383 | 5,058,281
Operating Segments | Mortgage Operations |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income (expense) | 5,871 | 5,455 | 7,270
Provision (benefit) for credit losses | 2,457 | 3,269 | (235)
Noninterest income: |  |  |
Service charges on deposit accounts | 0 | 0 | 0
Credit and debit card fees | 3 | 0 | 0
Trust and investment advisory fees | 0 | 0 | 0
(Loss) income from mortgage banking services, net | 33,060 | 49,320 | 88,819
Other noninterest income | 0 | (9) | (7)
Total noninterest income | 33,063 | 49,311 | 88,812
Noninterest expense: |  |  |
Salary and employee benefits | 25,313 | 38,456 | 55,557
Occupancy and equipment | 2,775 | 3,854 | 3,067
Other noninterest expenses | 14,933 | 13,814 | 12,341
Total noninterest expense | 43,021 | 56,124 | 70,965
Income (loss) before income taxes | (6,544) | (4,627) | 25,352
Other Information |  |  |
Depreciation expense | 233 | 364 | 390
Identifiable assets | 910,728 | 752,841 | 573,552
Corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
Net interest income (expense) | (5,013) | (5,663) | (4,552)
Provision (benefit) for credit losses | 0 | 0 | 0
Noninterest income: |  |  |
Service charges on deposit accounts | 0 | 0 | 0
Credit and debit card fees | 0 | 0 | 0
Trust and investment advisory fees | 0 | 0 | 0
(Loss) income from mortgage banking services, net | 0 | 0 | 0
Other noninterest income | 0 | 0 | 0
Total noninterest income | 0 | 0 | 0
Noninterest expense: |  |  |
Salary and employee benefits | 1,888 | 1,593 | 1,305
Occupancy and equipment | 190 | 83 | 3
Other noninterest expenses | 2,038 | 2,527 | 2,443
Total noninterest expense | 4,116 | 4,203 | 3,751
Income (loss) before income taxes | (9,129) | (9,866) | (8,303)
Other Information |  |  |
Depreciation expense | 0 | 0 | 0
Identifiable assets | $ 61,255 | $ 44,098 | $ 34,981

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