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Income Taxes
 9 Months Ended
Dec. 31, 2012
Income Taxes [Abstract]  
Income Taxes

9. Income Taxes

For the three and nine months ended December 31, 2012, the Company recorded income tax expense of $0.1 million and an income tax benefit of $0.7 million, respectively. For the three and nine months ended December 31, 2011, the Company recorded income tax expense of $0.1 million and $1.2 million, respectively. The income tax expense for the three months ended December 31, 2012, was primarily due to income taxes in foreign jurisdictions. The income tax benefit for the nine months ended December 31, 2012 was primarily due to a refund of income taxes paid in China. The Company has provided a valuation allowance against all existing and newly created deferred tax assets as of December 31, 2012, as it is more likely than not that its deferred tax assets are not currently realizable due to the net operating losses incurred by the Company since its inception.