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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2024
Income Taxes |
Schedule of components of income tax expense (benefit) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ |  | 2024 |  | 2023 |  | 2022
Current: |  | ​ |  |  | ​ |  |  | ​ |
Federal | ​ | $ | 60,294 | ​ | $ | 54,097 | ​ | $ | 50,194
State | ​ |  | 5,009 | ​ |  | 39 | ​ |  | 5,017
​ | ​ |  | 65,303 | ​ |  | 54,136 | ​ |  | 55,211
Deferred: | ​ |  |  | ​ |  |  | ​ |  |
Federal | ​ |  | (476) | ​ |  | 229 | ​ |  | (578)
State | ​ |  | 254 | ​ |  | 325 | ​ |  | 811
​ | ​ |  | (222) | ​ |  | 554 | ​ |  | 233
Tax expense recorded as an increase of paid-in capital | ​ |  | — | ​ |  | — | ​ |  | —
​ | ​ | $ | 65,081 | ​ | $ | 54,690 | ​ | $ | 55,444
Schedule of effective income tax rate reconciliation | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, |
​ |  | 2024 |  | 2023 |  | 2022 |
Statutory U.S. federal income tax rate |  | 21.0 | % | 21.0 | % | 21.0 | %
State income taxes, net of federal tax benefit |  | 2.8 |  | 2.8 |  | 2.8 | ​
State tax credits, net of federal effect |  | (1.2) |  | (1.0) |  | (1.6) | ​
Excess tax benefits |  | (0.5) |  | (0.3) |  | (0.1) | ​
Nondeductible expenses |  | 0.4 |  | 0.3 |  | 0.2 | ​
Other |  | (0.2) |  | (1.7) |  | 0.8 | ​
Effective income tax rate |  | 22.3 | % | 21.1 | % | 23.1 | %
Schedule of deferred tax assets and liabilities | Significant components of the Company’s deferred income tax assets and liabilities, included in Deferred income taxes, non-current on the consolidated balance sheets are as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | As of December 31, |  | As of December 31,
​ |  | 2024 |  | 2023
Deferred tax assets: |  | ​ |  |  | ​ |
Share-based compensation | ​ | $ | 2,911 | ​ | $ | 2,850
Employee compensation | ​ |  | 1,459 | ​ |  | 1,262
Intangibles | ​ |  | 8,532 | ​ |  | 11,696
Leases | ​ | ​ | 2,598 | ​ | ​ | 1,780
State taxes | ​ |  | 4,197 | ​ |  | 3,641
Other | ​ |  | 171 | ​ |  | 329
Deferred tax assets | ​ |  | 19,868 | ​ |  | 21,558
​ | ​ | ​ | ​ | ​ | ​ | ​
Deferred tax liability: | ​ |  |  | ​ |  |
Property and equipment | ​ |  | (9,337) | ​ |  | (11,256)
Goodwill | ​ |  | (37,051) | ​ |  | (37,051)
Other | ​ |  | (7) | ​ |  | —
Deferred tax liability | ​ |  | (46,395) | ​ |  | (48,307)
Net deferred tax liability | ​ | $ | (26,527) | ​ | $ | (26,749)
​ The net deferred tax liability on the accompanying consolidated balance sheet is comprised of the following:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | As of December 31, |  | As of December 31,
​ |  | 2024 |  | 2023
Deferred income taxes, current | ​ | $ | 5,827 | ​ | $ | 5,118
Deferred income taxes, non-current | ​ |  | (32,354) | ​ |  | (31,867)
Net deferred tax liability | ​ | $ | (26,527) | ​ | $ | (26,749)
Reconciliation of the beginning and ending balance of unrecognized tax benefits | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2024 |  | 2023
Unrecognized tax benefits, beginning of year | ​ | $ | 13,631 | ​ | $ | 15,862
Tax positions taken during the current year | ​ |  |  | ​ |  |
Increases | ​ |  | 3,407 | ​ |  | 2,891
Decreases | ​ |  | — | ​ |  | —
Tax positions taken during a prior year | ​ |  |  | ​ |  |
Increases | ​ |  | 2,465 | ​ |  | 392
Decreases | ​ |  | (1,550) | ​ |  | (1,810)
Decreases for settlements during the period | ​ |  | — | ​ |  | (384)
Reductions for lapses of applicable statute of limitations | ​ |  | (3,327) | ​ |  | (3,320)
Unrecognized tax benefits, end of year | ​ | $ | 14,626 | ​ | $ | 13,631

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