Income Taxes	6 Months Ended
Sep. 30, 2011
Income Tax Expense Benefit Abstract
Income Tax Disclosure Text Block	15. Income Taxes For the three and six months ended September 30, 2011, we recorded income tax provisions of $4.7 million and $10.4 million, reflecting effective tax rates of 30.0% and 33.3%, respectively. For the three and six months ended September 30, 2010, we recorded income tax provisions of $3.7 million and $9.7 million, reflecting effective tax rates of 34.8% and 41.9%, respectively. For the three and six months ended September 30, 2011, the effective tax rates were affected by changes in the estimates of annual income in foreign jurisdictions and by a valuation allowance release. For the three months ended September 30, 2010, the effective tax rate was affected by a change in the estimates of annual income in foreign jurisdictions and certain discrete items. For the six months ended September 30, 2010, the effective tax rate was impacted by certain discrete items.

Description containing the entire income tax disclosure. Examples 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. This element may be used as a single block of text to encapsulate the entire disclosure including data and tables.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph h

-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 109

-Paragraph 136, 172

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 109

-Paragraph 43, 44, 45, 46, 47, 48, 49

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