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Income Taxes	6 Months Ended
	Sep. 30, 2010
Income Taxes
Income Taxes	10. Income Taxes The Company recorded income tax expense of $7.9 million and $15.1 million for the three and six months ended September 30, 2010, respectively, and $5.3 million and $8.2 million for the three and six months ended September 30, 2009, respectively. The fluctuations relate primarily to income generated in foreign jurisdictions. The Company has provided a valuation allowance against all deferred tax assets in the U.S. as it is more likely than not that its U.S. deferred tax assets are not currently realizable due to the net operating losses incurred by the Company in the U.S. since its inception.

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- Definition

Income Taxes

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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.

+ References

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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