INCOME TAXES	9 Months Ended
Dec. 31, 2011
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The effective tax rate for the three and nine months ended December 31, 2011 was 18.3% and 22.8%, respectively, compared to 13.6% and 22.5%, respectively, in the same periods in the prior year. The higher effective tax rate for the three and nine months ended December 31, 2011 is due primarily to both the release of larger tax reserves and the December 2010 retroactive reinstatement of the federal tax research credit resulting in a 15 month benefit in the prior year periods compared to the nine month benefit in the current year due to the December 2011 expiration of the credit. The impact of the tax reserve release and the federal research tax credit reinstatement had a proportionally larger impact in the three month comparison relative to the nine month comparison. The effective tax rates differ from the statutory rate due to the impact of foreign operations taxed at different statutory rates, tax credits, state taxes and other factors. The future tax rate could be impacted by a shift in the mix of domestic and foreign income, tax treaties with foreign jurisdictions, changes in tax laws in the U.S. or internationally, or a change in estimates of future taxable income which could result in a valuation allowance being required. The Company's provision for income taxes does not include provisions for U.S. income taxes and foreign withholding taxes associated with the repatriation of undistributed earnings of certain foreign operations that the Company intends to reinvest indefinitely in the foreign operations. If these earnings were distributed to the U.S. in the form of dividends or otherwise, the Company would be subject to additional U.S. income taxes, subject to an adjustment for foreign tax credits, and foreign withholding taxes. The Company's current plans do not require repatriation of earnings from foreign operations to fund the U.S. operations because the Company generates sufficient domestic operating cash flow and has access to external funding under its line of credit. As a result, the Company does not expect a material impact on its business or financial flexibility with respect to undistributed earnings of its foreign operations. As of December 31, 2011, the Company had $10.9 million of unrecognized tax benefits compared to $10.5 million at March 31, 2011 recorded in Long-term income taxes payable in the Condensed consolidated balance sheets, all of 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 is $1.6 million as of December 31, 2011 as compared to $1.7 million as of March 31, 2011. No penalties have been accrued. The Company and its subsidiaries are subject to taxation in various foreign and state jurisdictions as well as in the U.S. The Company is no longer subject to U.S. federal tax examinations for tax years prior to 2008. The Company is under examination by the California Franchise Tax Board for its 2007 and 2008 tax years. Foreign income tax matters for material tax jurisdictions have been concluded for tax years prior to fiscal 2006, except for the United Kingdom which has been concluded for tax years prior to fiscal 2009. 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. Although timing of any resolution and/or closure of tax examinations is not certain, the Company does not believe it is reasonably possible that its unrecognized tax benefits would materially change in the next twelve months

INCOME TAXES

The effective tax rate for the three and nine months ended December 31, 2011 was 18.3% and 22.8%, respectively, compared to 13.6% and 22.5%, respectively, in the same periods in the prior year. The higher effective tax rate for the three and nine months ended December 31, 2011 is due primarily to both the release of larger tax reserves and the December 2010 retroactive reinstatement of the federal tax research credit resulting in a 15 month benefit in the prior year periods compared to the nine month benefit in the current year due to the December 2011 expiration of the credit. The impact of the tax reserve release and the federal research tax credit reinstatement had a proportionally larger impact in the three month comparison relative to the nine month comparison. The effective tax rates differ from the statutory rate due to the impact of foreign operations taxed at different statutory rates, tax credits, state taxes and other factors. The future tax rate could be impacted by a shift in the mix of domestic and foreign income, tax treaties with foreign jurisdictions, changes in tax laws in the U.S. or internationally, or a change in estimates of future taxable income which could result in a valuation allowance being required.

The Company's provision for income taxes does not include provisions for U.S. income taxes and foreign withholding taxes associated with the repatriation of undistributed earnings of certain foreign operations that the Company intends to reinvest indefinitely in the foreign operations. If these earnings were distributed to the U.S. in the form of dividends or otherwise, the Company would be subject to additional U.S. income taxes, subject to an adjustment for foreign tax credits, and foreign withholding taxes. The Company's current plans do not require repatriation of earnings from foreign operations to fund the U.S. operations because the Company generates sufficient domestic operating cash flow and has access to external funding under its line of credit. As a result, the Company does not expect a material impact on its business or financial flexibility with respect to undistributed earnings of its foreign operations.

As of December 31, 2011, the Company had $10.9 million of unrecognized tax benefits compared to $10.5 million at March 31, 2011 recorded in Long-term income taxes payable in the Condensed consolidated balance sheets, all of 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 is $1.6 million as of December 31, 2011 as compared to $1.7 million as of March 31, 2011. No penalties have been accrued.

The Company and its subsidiaries are subject to taxation in various foreign and state jurisdictions as well as in the U.S. The Company is no longer subject to U.S. federal tax examinations for tax years prior to 2008. The Company is under examination by the California Franchise Tax Board for its 2007 and 2008 tax years. Foreign income tax matters for material tax jurisdictions have been concluded for tax years prior to fiscal 2006, except for the United Kingdom which has been concluded for tax years prior to fiscal 2009.

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. Although timing of any resolution and/or closure of tax examinations is not certain, the Company does not believe it is reasonably possible that its unrecognized tax benefits would materially change in the next twelve months