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Income Taxes (Tables) | 9 Months Ended
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Oct. 31, 2014
Income Tax Disclosure [Abstract] |
Company's Income Tax Expense Related to Continuing Operations | The Company’s income tax expense amounts for the nine months ended October 31, 2014 and 2013 differed from the expected income tax expense amounts computed by applying the federal corporate income tax rate of 35% to income before income taxes for the periods as shown in the table below.
|  | Nine Months Ended October 31, |
|  | 2014 |  |  | 2013 |
Computed expected income tax expense |  | $ | 17,065,000 |  |  | $ | 18,495,000 |
State income taxes, net of federal tax benefit |  |  | 2,325,000 |  |  |  | 1,918,000 |
Permanent differences, net |  |  | (4,323,000 | ) |  |  | (1,280,000 | )
Other, net |  |  | 110,000 |  |  |  | 398,000 |
|  | $ | 15,177,000 |  |  | $ | 19,531,000 |

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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/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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