INCOME TAXES	6 Months Ended
Sep. 30, 2015
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The Company and its subsidiaries are subject to taxation in the U.S. and in various foreign and state jurisdictions. The effective tax rate for the three and six months ended September 30, 2015 was 27.4% and 23.2% compared to 26.2% and 26.1% for the same period in the prior year. The increase in the effective tax rate for the three months ended September 30, 2015 is due primarily to a shift of income away from the lower tax rate jurisdictions partially offset by the U.S. interest expense due to the 5.50% Senior Notes during the current period. The decrease in the effective tax rate for the six months ended September 30, 2015 is due primarily to lower domestic earnings resulting from the interest expense on the 5.50% Senior Notes and the favorable closure of a tax audit in the current year. The effective tax rates differ from the statutory rate due primarily to the impact of foreign operations taxed at different statutory rates, tax credits, state taxes, and other factors. On July 27, 2015, in Altera Corp. v. Commissioner, the U.S. Tax Court issued an opinion related to the treatment of stock-based compensation expense in an intercompany cost-sharing arrangement. A final decision has yet to be issued by the Tax Court due to other outstanding issues related to the case. At this time, the U.S. Department of the Treasury has not withdrawn the requirement to include stock-based compensation in inter-company cost-sharing arrangements from its regulations. Accordingly, due to the uncertainty surrounding the status of the current regulations, questions related to the scope of potential benefits, and the risk of the Tax Court’s decision being overturned upon appeal, the Company has not recorded any associated benefit as of September 30, 2015. The Company will continue to monitor ongoing developments and potential impacts to its financial statements. Included in long-term income taxes payable in the condensed consolidated balance sheets as of September 30, 2015 and March 31, 2015 were unrecognized tax benefits of $12.8 million, which would favorably impact the effective tax rate in future periods if recognized. The Company’s continuing practice is to recognize interest and/or penalties related to income tax matters in income tax expense in the condensed consolidated statements of operations. The accrued interest related to unrecognized tax benefits was $1.9 million and $1.8 million as of September 30, 2015 and March 31, 2015, respectively. No penalties have been accrued. The Company has effectively settled the examination by the Internal Revenue Service for its 2010 tax year. The California Franchise Tax Board completed its examination of the Company's 2007 and 2008 tax years. The Company received a Notice of Proposed Assessment and responded by filing a protest letter. The amount of the proposed assessment is not material. Foreign income tax matters for material tax jurisdictions have been concluded for tax years prior to fiscal year 2011, except in the United Kingdom where tax matters have been concluded for tax years prior to fiscal year 2014. The Company believes that an adequate provision has been made for any adjustments that may result from tax examinations; however, the outcome of such examinations cannot be predicted with certainty. If any issues addressed in the tax examinations are resolved in a manner inconsistent with the Company's expectations, the Company could be required to adjust its provision for income tax in the period such resolution occurs. The timing of any resolution and/or closure of tax examinations is not certain.

INCOME TAXES

The Company and its subsidiaries are subject to taxation in the U.S. and in various foreign and state jurisdictions. The effective tax rate for the three and six months ended September 30, 2015 was 27.4% and 23.2% compared to 26.2% and 26.1% for the same period in the prior year.

The increase in the effective tax rate for the three months ended September 30, 2015 is due primarily to a shift of income away from the lower tax rate jurisdictions partially offset by the U.S. interest expense due to the 5.50% Senior Notes during the current period. The decrease in the effective tax rate for the six months ended September 30, 2015 is due primarily to lower domestic earnings resulting from the interest expense on the 5.50% Senior Notes and the favorable closure of a tax audit in the current year. The effective tax rates differ from the statutory rate due primarily to the impact of foreign operations taxed at different statutory rates, tax credits, state taxes, and other factors.

On July 27, 2015, in Altera Corp. v. Commissioner, the U.S. Tax Court issued an opinion related to the treatment of stock-based compensation expense in an intercompany cost-sharing arrangement. A final decision has yet to be issued by the Tax Court due to other outstanding issues related to the case. At this time, the U.S. Department of the Treasury has not withdrawn the requirement to include stock-based compensation in inter-company cost-sharing arrangements from its regulations. Accordingly, due to the uncertainty surrounding the status of the current regulations, questions related to the scope of potential benefits, and the risk of the Tax Court’s decision being overturned upon appeal, the Company has not recorded any associated benefit as of September 30, 2015. The Company will continue to monitor ongoing developments and potential impacts to its financial statements.

Included in long-term income taxes payable in the condensed consolidated balance sheets as of September 30, 2015 and March 31, 2015 were unrecognized tax benefits of $12.8 million, which would favorably impact the effective tax rate in future periods if recognized. The Company’s continuing practice is to recognize interest and/or penalties related to income tax matters in income tax expense in the condensed consolidated statements of operations. The accrued interest related to unrecognized tax benefits was $1.9 million and $1.8 million as of September 30, 2015 and March 31, 2015, respectively. No penalties have been accrued.

The Company has effectively settled the examination by the Internal Revenue Service for its 2010 tax year. The California Franchise Tax Board completed its examination of the Company's 2007 and 2008 tax years. The Company received a Notice of Proposed Assessment and responded by filing a protest letter. The amount of the proposed assessment is not material. Foreign income tax matters for material tax jurisdictions have been concluded for tax years prior to fiscal year 2011, except in the United Kingdom where tax matters have been concluded for tax years prior to fiscal year 2014.

The Company believes that an adequate provision has been made for any adjustments that may result from tax examinations; however, the outcome of such examinations cannot be predicted with certainty. If any issues addressed in the tax examinations are resolved in a manner inconsistent with the Company's expectations, the Company could be required to adjust its provision for income tax in the period such resolution occurs. The timing of any resolution and/or closure of tax examinations is not certain.