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Assets Held for Sale (Notes)
9 Months Ended
Dec. 31, 2014
Property, Plant and Equipment Assets Held-for-sale Disclosure [Abstract]  
Assets Held for Sale
Assets Held for Sale

During the three months ended December 31, 2014, the Company began to actively market property it acquired as part of the Supertex acquisition.   The Company expects to sell the property within one year.  As of December 31, 2014, the Company classified the assets as held for sale on its condensed consolidated balance sheet at its fair value of approximately $14.3 million, net of the estimated cost to sell of approximately $0.3 million.