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Income Taxes - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Income Tax Contingency |  |  |  |  |
Income tax expense | $ 788 | $ 1,891 | $ 3,619 | $ 5,469 |
Deferred income tax expense |  |  | 2,322 | 3,611 |
TEXAS |  |  |  |  |
Income Tax Contingency |  |  |  |  |
State income taxes | 120 | 120 | 320 | 376 |
MTI |  |  |  |  |
Income Tax Contingency |  |  |  |  |
Income tax expense | $ 668 | $ 1,771 | $ 3,299 | $ 5,093 |
Effective income tax rate (percentage) | 23.96% | 19.94% | 24.88% | 21.09% |
Current federal income tax expense | $ 179 | $ 348 | $ 666 | $ 1,071 |
State income tax expense | 33 | 116 | 311 | 411 |
Deferred income tax expense | 456 | $ 1,307 | 2,322 | $ 3,611 |
Deferred tax asset | $ 12,064 |  | $ 12,064 |  | $ 14,386

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