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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2023
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items] |
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] | Deferred tax assets and liabilities as of December 31 are as follows:
|  | 2023 |  | 2022
Deferred income tax assets: |  | (in thousands)
Allowance for credit losses |  | $ | 672 |  |  | $ | 772 |
Accrued expenses |  | 4,964 |  |  | 6,383 |
Stock-based compensation |  | 120 |  |  | 36 |
Insurance accruals |  | 12,869 |  |  | 13,278 |
State net operating loss carryforward |  | 94 |  |  | — |
Indirect tax benefits of unrecognized tax benefits |  | 1,160 |  |  | 1,206 |
Other |  | 2 |  |  | 45 |
Total gross deferred tax assets |  | 19,881 |  |  | 21,720 |
Less valuation allowance |  | — |  |  | — |
Net deferred tax assets |  | 19,881 |  |  | 21,720 |
Deferred income tax liabilities: |  |  |  |
Property and equipment |  | (167,911) |  |  | (188,999) |
Goodwill and amortizable intangibles |  | (36,048) |  |  | (34,396) |
Prepaid expenses |  | (3,549) |  |  | (4,617) |
Total gross deferred tax liability |  | (207,508) |  |  | (228,012) |
Net deferred tax liabilities |  | $ | (187,627) |  |  | $ | (206,292) |
The deferred tax amounts above have been classified in the accompanying consolidated balance sheets at December 31, 2023 and 2022 as follows:
|  | 2023 |  | 2022
|  | (in thousands)
Noncurrent assets, net |  | $ | 1,494 |  |  | $ | 1,224 |
Long-term liabilities, net |  | (189,121) |  |  | (207,516) |
|  | $ | (187,627) |  |  | $ | (206,292) |
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] | Income tax expense consists of the following:
|  | 2023 |  | 2022 |  | 2021
|  | (in thousands)
Current income taxes: |  |  |  |  |  |
Federal |  | $ | 19,020 |  |  | $ | 31,951 |  |  | $ | 25,571 |
State |  | 3,543 |  |  | 9,657 |  |  | 7,068 |
Foreign |  | 596 |  |  | 195 |  |  | — |
|  | 23,159 |  |  | 41,803 |  |  | 32,639 |
Deferred income taxes: |  |  |  |  |  |
Federal |  | (14,500) |  |  | 3,717 |  |  | (4,392) |
State |  | (3,311) |  |  | 2,005 |  |  | (1,477) |
Foreign |  | (270) |  |  | (18) |  |  | — |
|  | (18,081) |  |  | 5,704 |  |  | (5,869) |
Total |  | $ | 5,078 |  |  | $ | 47,507 |  |  | $ | 26,770 |
The income tax provision differs from the amount determined by applying the U.S. federal tax rate as follows:
|  | 2023 |  | 2022 |  | 2021
|  | (in thousands)
Federal tax at statutory rate (21%) |  | $ | 4,169 |  |  | $ | 38,029 |  |  | $ | 22,270 |
State taxes, net of federal benefit |  | 708 |  |  | 9,711 |  |  | 4,452 |
Permanent differences to return |  | 1,740 |  |  | 449 |  |  | (227) |
Return to provision adjustment |  | (1,482) |  |  | (203) |  |  | 302 |
Uncertain income tax penalties and interest, net |  | (152) |  |  | (226) |  |  | (266) |
Foreign Rate Differential |  | 154 |  |  | 58 |  |  | — |
Other |  | (59) |  |  | (311) |  |  | 239 |
|  | $ | 5,078 |  |  | $ | 47,507 |  |  | $ | 26,770 |
Reconciliation of Unrecognized Tax Benefits [Table Text Block] | A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
| 2023 |  | 2022
| (in thousands)
Balance at January 1, | $ | 5,744 |  |  | $ | 4,671 |
Additions based on tax positions related to current year | 345 |  |  | 1,921 |
Additions for tax positions of prior years | — |  |  | 131 |
Reductions for tax positions of prior years | (176) |  |  | — |
Reductions due to lapse of applicable statute of limitations | (391) |  |  | (771) |
Settlements | — |  |  | (208) |
Balance at December 31, | $ | 5,522 |  |  | $ | 5,744 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 9 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-9 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 + Details
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- Definition Tabular disclosure of unrecognized tax benefits for which a material change is reasonably possible in the next twelve months, typically including the nature of the uncertainty, the event(s) that could cause a material change, and an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made. An unrecognized tax benefit is the difference between a tax position taken in a tax return and the amounts recognized in the financial statements for which it is more likely than not, based on the technical merits of the position, that the tax position will not be sustained upon examination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-15 + Details
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