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Certain Financial Statement Information (Details Textual) (USD $) In Thousands, except Share data in Millions, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2014
Certain Financial Statement Information [Line Items]
Impairment of a strategic investment	$ 0	$ 0	$ 2,500	$ 0
Gross unrealized gain			$ 3,505		$ 3,455
Options and Restricted Stock Units [Member]
Certain Financial Statement Information [Line Items]
Antidilutive securities excluded from net loss per share computation	0.6	1.8	0.9	1.4

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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