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Note 13 - Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2024
Notes Tables |
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] |
|  | Year Ended December 31, |
|  | 2024 |  |  | 2023 |  |  | 2022 |
Income before income taxes: |  |  |  |  |  |  |  |  |  |  |  |
Domestic |  | $ | 392,253 |  |  | $ | 455,288 |  |  | $ | 502,141 |
Foreign |  |  | 5,562 |  |  |  | 6,773 |  |  |  | 7,186 |
Total |  |  | 397,815 |  |  |  | 462,061 |  |  |  | 509,327 |
Current provision |  |  |  |  |  |  |  |  |  |  |  |
Federal |  | $ | 62,358 |  |  | $ | 87,270 |  |  | $ | 93,942 |
State |  |  | 9,975 |  |  |  | 16,864 |  |  |  | 16,516 |
Foreign |  |  | 702 |  |  |  | 2,265 |  |  |  | 2,523 |
Total |  |  | 73,035 |  |  |  | 106,399 |  |  |  | 112,981 |
Deferred provision (benefit) |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | 15,283 |  |  |  | 7,617 |  |  |  | 7,975 |
State |  |  | 3,752 |  |  |  | 505 |  |  |  | (565 | )
Foreign |  |  | 775 |  |  |  | (521 | ) |  |  | (3,149 | )
Total |  |  | 19,810 |  |  |  | 7,601 |  |  |  | 4,261 |
Provision for income taxes |  | $ | 92,845 |  |  | $ | 114,000 |  |  | $ | 117,242 |
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] |
|  | Year Ended December 31, |
|  | 2024 |  |  | 2023 |  |  | 2022 |
|  | Amount |  |  | Rate |  |  | Amount |  |  | Rate |  |  | Amount |  |  | Rate |
Income taxes at the federal statutory rate |  | $ | 83,540 |  |  |  | 21.0 | % |  | $ | 97,032 |  |  |  | 21.0 | % |  | $ | 106,959 |  |  |  | 21.0 | %
State income taxes, net of federal benefit (a) |  |  | 10,030 |  |  |  | 2.5 |  |  |  | 14,120 |  |  |  | 3.1 |  |  |  | 12,708 |  |  |  | 2.5 |
Tax effect of permanent differences |  |  | (1,212 | ) |  |  | (0.3 | ) |  |  | 1,357 |  |  |  | 0.3 |  |  |  | (488 | ) |  |  | (0.1 | )
Foreign tax rate differential |  |  | 271 |  |  |  | 0.1 |  |  |  | 266 |  |  |  | 0.0 |  |  |  | (2134 | ) |  |  | (0.4 | )
Other, net |  |  | 216 |  |  |  | 0.0 |  |  |  | 1,225 |  |  |  | 0.3 |  |  |  | 197 |  |  |  | 0.0 |
Provision for income taxes |  | $ | 92,845 |  |  |  | 23.3 | % |  | $ | 114,000 |  |  |  | 24.7 | % |  | $ | 117,242 |  |  |  | 23.0 | %
Schedule of Deferred Tax Assets and Liabilities [Table Text Block] |
|  | December 31, |
|  | 2024 |  |  | 2023 |
Deferred income tax (assets) liabilities: |  |  |  |  |  |  |  |
Inventory |  | $ | (5,547 | ) |  | $ | (5,215 | )
Accounts receivable |  |  | (517 | ) |  |  | (436 | )
Vehicle finance lease obligations |  |  | (30,696 | ) |  |  | (31,178 | )
Finance and operating leases - Liability |  |  | (27,522 | ) |  |  | (29,446 | )
Stock options |  |  | (8,790 | ) |  |  | (8,785 | )
Accrued liabilities |  |  | (5,604 | ) |  |  | (4,653 | )
State net operating loss carry forward |  |  | (1,689 | ) |  |  | (1,111 | )
State tax credit |  |  | 29 |  |  |  | (34 | )
Other |  |  | (6,108 | ) |  |  | (6,167 | )
Finance and operating leases - Asset |  |  | 26,970 |  |  |  | 29,031 |
Fixed assets and intangibles |  |  | 238,390 |  |  |  | 217,565 |
Net deferred income tax liability |  | $ | 178,916 |  |  | $ | 159,571 |
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] |
|  | 2024 |  |  | 2023 |  |  | 2022 |
Unrecognized tax benefits at beginning of period |  | $ | 6,771 |  |  | $ | 5,377 |  |  | $ | 4,309 |
Gross increases – tax positions in current year |  |  | 1,937 |  |  |  | 2,582 |  |  |  | 2,025 |
Reductions due to lapse of statute of limitations |  |  | (645 | ) |  |  | (1,188 | ) |  |  | (957 | )
Unrecognized tax benefits at end of period |  | $ | 8,063 |  |  | $ | 6,771 |  |  | $ | 5,377 |

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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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- 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://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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