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INCOME TAXES (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Income Tax Disclosure [Line Items] |  |  |  |  |
Corporate tax rate |  |  | 35.00% |  |
Deferred tax assets and liabilities expected to reverse, percentage |  |  | 25.00% |  |
Additional provision for income tax expense | $ 5,900 |  | $ 10,639 |  |
Income tax (benefit) |  |  | (4,771) |  |
Current [Abstract] |  |  |  |  |
Federal |  |  | 14,239 | $ 16,259 | $ 17,598
State |  |  | 2,350 | 2,326 | 2,907
Current income tax expense (benefit) |  |  | 16,589 | 18,585 | 20,505
Deferred [Abstract] |  |  |  |  |
Federal |  |  | 5,829 | (690) | (2,476)
State |  |  | (270) | (430) | (543)
Deferred income tax expense (benefit) |  |  | 5,559 | (1,120) | (3,019)
Income tax expense (benefit) |  |  | 22,148 | 17,465 | 17,486
Effective income tax rate reconciliation [Abstract] |  |  |  |  |
Statutory rates applied to income before income taxes |  |  | 15,129 | 16,037 | 15,846
State income taxes, net of Federal tax benefit |  |  | 1,306 | 1,494 | 1,487
Net permanent differences |  |  | 95 | 99 | (11)
Other |  |  | (250) | (165) | 164
Tax Act, net impact |  |  | 5,868 | 0 | 0
Income tax expense (benefit) |  |  | 22,148 | 17,465 | $ 17,486
Deferred tax assets [Abstract] |  |  |  |  |
Accounts receivable | 433 |  | 433 | 808 |
Property and equipment | 6,434 |  | 6,434 | 10,276 |
Leases | 4,356 |  | 4,356 | 5,913 |
Accrued liabilities | 8,171 |  | 8,171 | 12,217 |
Retirement benefits | 492 |  | 492 | 513 |
Other | 62 |  | 62 | 69 |
Total deferred tax assets | 19,948 |  | 19,948 | 29,796 |
Deferred tax liabilities [Abstract] |  |  |  |  |
Inventory | 7,034 |  | 7,034 | 10,082 |
Other | 539 |  | 539 | 1,338 |
Total deferred tax liabilities | 7,573 |  | 7,573 | 11,420 |
Net deferred tax assets | $ 12,375 |  | $ 12,375 | $ 18,376 |
Plan [Member] |  |  |  |  |
Income Tax Disclosure [Line Items] |  |  |  |  |
Corporate tax rate |  | 21.00% |  |  |

X
- Definition Percentage of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to increase (decrease) in income tax rate and transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act of 2017. + References No definition available. + Details
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