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Income Taxes | 9 Months Ended
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Jan. 31, 2016
Income Tax Disclosure [Abstract] |
Income Taxes | Income Taxes The Company computes its interim provision for income taxes by applying the estimated annual effective tax rate to income from operations and adjusts the provision for discrete tax items occurring in the period. For continuing operations, the Company’s effective tax rate for the three months ended January 31, 2016 was a benefit of 5.0 percent compared to an expense of 8.5 percent for the three months ended January 31, 2015. For continuing operations, the Company’s effective tax rate for the nine months ended January 31, 2016 was a benefit of 0.7 percent compared to an expense of 2.5 percent for the nine months ended January 31, 2015. The tax benefit for the three and nine months ended January 31, 2016 were primarily attributable to an estimated decrease in state taxes payable primarily as a result of increased benefits recognized for Texas R&D credits and refunds related to prior year state and foreign returns. The tax expense for the three and nine months ended January 31, 2015 were primarily attributable to estimated foreign and state income tax expense.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 4: 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 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 + Details
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