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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2024
Income Taxes |
Schedule of income before income tax, | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Years ended December 31, |  | 2024 |  | 2023 |  | 2022
(in thousands) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
United States | ​ | $ | 102,415 | ​ | $ | 253,407 | ​ | $ | 287,987
Foreign | ​ |  | 10,387 | ​ |  | 2,836 | ​ |  | 1,645
Income before income taxes | ​ | $ | 112,802 | ​ | $ | 256,243 | ​ | $ | 289,632
Schedule of components of the provision for income taxes | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Years ended December 31, |  | 2024 |  | 2023 |  | 2022
(in thousands) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Current provision: | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Federal | ​ | $ | 11,468 | ​ | $ | 45,146 | ​ | $ | 47,744
State | ​ |  | 2,310 | ​ |  | 6,502 | ​ |  | 3,164
Foreign | ​ |  | 681 | ​ |  | 835 | ​ |  | 865
Deferred provision (Benefit): | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Federal | ​ |  | 8,067 | ​ |  | 7,116 | ​ |  | 14,026
State | ​ |  | 1 | ​ |  | 1,531 | ​ |  | 5,470
Foreign | ​ | ​ | (1,169) | ​ | ​ | — | ​ | ​ | —
Total income tax provision | ​ | $ | 21,358 | ​ | $ | 61,130 | ​ | $ | 71,269
Schedule of reconciliation between the federal statutory rate and effective tax rate | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Years ended December 31, | ​ | 2024 | ​ | 2023 | ​ | 2022
(in thousands) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Federal statutory rate | ​ | $ | 23,688 | ​ | 21.0 | % | ​ | $ | 53,811 | ​ | 21.0 | % | ​ | $ | 60,823 | ​ | 21.0 | %
State income taxes, net of federal benefit (a) | ​ | ​ | 2,491 | ​ | 2.2 | ​ | ​ | ​ | 5,401 | ​ | 2.1 | ​ | ​ | ​ | 5,148 | ​ | 1.8 |
Foreign taxes, net of federal benefit | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Canada | ​ |  | ​ | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​
Change in valuation allowance | ​ | ​ | (1,187) | ​ | (1.1) | ​ | ​ | ​ | 614 | ​ | 0.2 | ​ | ​ | ​ | 573 | ​ | 0.2 | ​
Other | ​ |  | 61 | ​ | 0.1 |  | ​ | ​ | (500) | ​ | (0.2) |  | ​ | ​ | (541) | ​ | (0.2) | ​
Other foreign jurisdiction | ​ | ​ | 436 | ​ | 0.4 | ​ | ​ | ​ | 721 | ​ | 0.3 | ​ | ​ | ​ | 833 | ​ | 0.3 | ​
Tax credits | ​ | ​ | (1,036) | ​ | (0.9) | ​ | ​ | ​ | (703) | ​ | (0.3) | ​ | ​ | ​ | (424) | ​ | (0.1) | ​
Change in unrecognized tax benefits | ​ | ​ | (1,637) | ​ | (1.5) | ​ | ​ | ​ | 251 | ​ | 0.1 | ​ | ​ | ​ | 144 | ​ | — | ​
Non-deductible expenses | ​ | ​ | 1,833 | ​ | 1.6 | ​ | ​ | ​ | 2,154 | ​ | 0.9 | ​ | ​ | ​ | 2,254 | ​ | 0.8 | ​
Cross-border tax laws | ​ |  | (315) | ​ | (0.3) |  | ​ | ​ | (256) | ​ | (0.1) |  | ​ | ​ | (250) | ​ | (0.1) | ​
Change in valuation allowance | ​ |  | — | ​ | — |  | ​ | ​ | — | ​ | — |  | ​ | ​ | (174) | ​ | (0.1) | ​
Interest related to tax matters | ​ |  | (2,189) | ​ | (1.9) |  | ​ | ​ | (1,757) | ​ | (0.7) |  | ​ | ​ | (1,306) | ​ | (0.5) | ​
Other | ​ |  | (787) | ​ | (0.7) |  | ​ | ​ | 1,394 | ​ | 0.6 |  | ​ | ​ | 4,189 | ​ | 1.5 | ​
Income tax provision and effective tax rate | ​ | $ | 21,358 | ​ | 18.9 | % | ​ | $ | 61,130 | ​ | 23.9 | % | ​ | $ | 71,269 | ​ | 24.6 | %
​ (a) Income taxes in Texas, Oklahoma, and New Mexico made up the majority (greater than 50 percent) of the state tax effect.
Schedule of deferred tax assets and liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, |  | 2024 |  | 2023
(in thousands) | ​ | ​ | ​ | ​ | ​ | ​
Deferred tax assets: |  | ​ |  |  | ​ |
Self-insurance | ​ | $ | 3,386 | ​ | $ | 4,303
Long-term retirement plan | ​ |  | 5,276 | ​ |  | 5,101
State net operating loss carryforwards | ​ |  | 2,010 | ​ |  | 1,520
Allowance for credit losses | ​ |  | 1,826 | ​ |  | 1,634
Stock-based compensation | ​ |  | 1,995 | ​ |  | 1,414
Inventory reserve | ​ | ​ | 3,178 | ​ | ​ | 3,330
Lease liability | ​ | ​ | 7,067 | ​ | ​ | 5,777
Capitalized research and development | ​ | ​ | 4,721 | ​ | ​ | 3,066
All others, net | ​ |  | 1,959 | ​ |  | 1,535
Gross deferred tax assets | ​ |  | 31,418 | ​ |  | 27,680
Deferred tax liabilities: | ​ |  | ​ | ​ |  | ​
Depreciation | ​ |  | (75,559) | ​ |  | (66,784)
Right of use asset | ​ | ​ | (7,013) | ​ | ​ | (5,461)
Goodwill amortization | ​ |  | (7,035) | ​ |  | (6,725)
Gross deferred tax liabilities | ​ |  | (89,607) | ​ |  | (78,970)
Net deferred tax liabilities | ​ | $ | (58,189) | ​ | $ | (51,290)
Schedule of components of the payments for income taxes | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Years ended December 31, |  | 2024 |  | 2023 |  | 2022
(in thousands) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Federal | ​ | $ | (35,538) | ​ | $ | 56,000 | ​ | $ | 33,852
State | ​ |  | ​ | ​ |  | ​ | ​ |  | ​
Texas | ​ | ​ | 2,021 | ​ | ​ | 1,823 | ​ | ​ | 400
Oklahoma | ​ | ​ | — | ​ | ​ | 1,000 | ​ | ​ | (668)
Other | ​ | ​ | 1,330 | ​ | ​ | 2,345 | ​ | ​ | 1,203
Foreign | ​ |  | 511 | ​ |  | 1,058 | ​ |  | 1,022
Total net (refunds) payments | ​ | $ | (31,676) | ​ | $ | 62,226 | ​ | $ | 35,809
Schedule of reconciliation of unrecognized tax benefits | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2024 |  | 2023
(in thousands) | ​ | ​ | ​ | ​ | ​ | ​
Balance at January 1 | ​ | $ | 2,168 | ​ | $ | 1,917
Additions based on tax positions related to the current year |  | ​ | 167 |  | ​ | 337
(Reductions) for tax positions of prior years |  | ​ | (1,804) |  | ​ | (86)
Balance at December 31 | ​ | $ | 531 | ​ | $ | 2,168

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + Details
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