Income Taxes	6 Months Ended
Nov. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 8 — INCOME TAXES The effective income tax benefit rate was 34.3% for the three months ended November 30, 2016 compared to an effective income tax expense rate of 30.0% for the three months ended November 30, 2015. The effective income tax benefit rate was 3.7% for the six months ended November 30, 2016 compared to an effective income tax expense rate of 29.7% for the six months ended November 30, 2015. The effective tax rate for the three and six months ended November 30, 2016 and 2015 reflect variances from the 35% federal statutory rate due to the lower effective tax rate of certain of our foreign subsidiaries, the benefit of the domestic manufacturing deduction and the unfavorable impact of state and local taxes. Additionally, as a result of our current year early adoption of ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting”, we recorded a $10.4 million discrete tax benefit during the three months ended August 31, 2016 and an additional $0.9 million discrete tax benefit for the three months ended November 30, 2016, for excess tax benefits related to equity compensation. Please see Note 2, “New Accounting Pronouncements,” for additional discussion regarding our adoption of the standard. At May 31, 2016, we determined that it was possible that we would repatriate approximately $377.3 million of undistributed foreign earnings in the foreseeable future. Accordingly, as of May 31, 2016, we recorded a deferred income tax liability of $98.5 million, which represented our estimate of the net U.S income and foreign withholding tax associated with the $377.3 million of unremitted foreign earnings. As of November 30, 2016, the amount of undistributed earnings that may be repatriated and the corresponding deferred tax liability has been adjusted to $368.8 million and $95.3 million, respectively. The adjustments are primarily due to foreign currency translation, which was recorded as a component of other comprehensive income. We have not provided for U.S. income and foreign withholding taxes on the remaining foreign subsidiaries’ undistributed earnings because such earnings have been retained and reinvested by the subsidiaries as of November 30, 2016. Accordingly, no provision has been made for U.S. income taxes or foreign withholding taxes, which may become payable if the remaining undistributed earnings of those foreign subsidiaries were paid to us as dividends.

NOTE 8 — INCOME TAXES

The effective income tax benefit rate was 34.3% for the three months ended November 30, 2016 compared to an effective income tax expense rate of 30.0% for the three months ended November 30, 2015. The effective income tax benefit rate was 3.7% for the six months ended November 30, 2016 compared to an effective income tax expense rate of 29.7% for the six months ended November 30, 2015.

The effective tax rate for the three and six months ended November 30, 2016 and 2015 reflect variances from the 35% federal statutory rate due to the lower effective tax rate of certain of our foreign subsidiaries, the benefit of the domestic manufacturing deduction and the unfavorable impact of state and local taxes.

Additionally, as a result of our current year early adoption of ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting”, we recorded a $10.4 million discrete tax benefit during the three months ended August 31, 2016 and an additional $0.9 million discrete tax benefit for the three months ended November 30, 2016, for excess tax benefits related to equity compensation. Please see Note 2, “New Accounting Pronouncements,” for additional discussion regarding our adoption of the standard.

At May 31, 2016, we determined that it was possible that we would repatriate approximately $377.3 million of undistributed foreign earnings in the foreseeable future. Accordingly, as of May 31, 2016, we recorded a deferred income tax liability of $98.5 million, which represented our estimate of the net U.S income and foreign withholding tax associated with the $377.3 million of unremitted foreign earnings. As of November 30, 2016, the amount of undistributed earnings that may be repatriated and the corresponding deferred tax liability has been adjusted to $368.8 million and $95.3 million, respectively. The adjustments are primarily due to foreign currency translation, which was recorded as a component of other comprehensive income. We have not provided for U.S. income and foreign withholding taxes on the remaining foreign subsidiaries’ undistributed earnings because such earnings have been retained and reinvested by the subsidiaries as of November 30, 2016. Accordingly, no provision has been made for U.S. income taxes or foreign withholding taxes, which may become payable if the remaining undistributed earnings of those foreign subsidiaries were paid to us as dividends.