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Equity Investments | 9 Months Ended
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Dec. 31, 2012
Equity Investments [Abstract] |
Equity Investments | 14. Equity Investments Investment in Tres Amigas On October 9, 2009, the Company made an investment in Tres Amigas LLC, a Delaware limited liability company (“Tres Amigas”), focused on providing the first common interconnection of America's three power grids to help the country achieve its renewable energy goals and facilitate the smooth, reliable and efficient transfer of green power from region to region, for $1.8 million, consisting of $0.8 million in cash and $1.0 million in AMSC common stock. On January 6, 2011 and May 20, 2011, the Company increased its minority position in Tres Amigas by investing an additional $1.8 million in cash on each date. As of December 31, 2012, the Company holds a 28% ownership interest in Tres Amigas. The Company’s investment in Tres Amigas is included in other assets on the unaudited condensed consolidated balance sheet and the equity in undistributed losses of Tres Amigas is included in other (expense) income, net, on the unaudited condensed consolidated statements of operations. The net investment activity for the nine months ended December 31, 2012 is as follows (in thousands):
Balance at April 1, 2012 | $ | 3,859
Minority interest in net losses |  | (689)
Balance at December 31, 2012 | $ | 3,170
Investment in Blade Dynamics Ltd. On August 12, 2010, the Company acquired (through its Austrian subsidiary), a minority ownership position in Blade Dynamics Ltd. (“Blade Dynamics”), a designer and manufacturer of advanced wind turbine blades based on proprietary materials and structural technologies, for $8.0 million in cash. During the three months ended December 31, 2012, an additional investor invested in Blade Dynamics and as of December 31, 2012, the Company now holds a 19% ownership interest in Blade Dynamics. As a result of the Company’s investment being reduced to less than 20%, and that the Company believes it no longer has the ability to significantly influence the operations of Blade Dynamics, the Company has therefore changed its accounting for this investment from the equity method to the cost method as of December 1, 2012. The investment is carried at the acquisition cost, plus the Company’s equity in undistributed earnings or losses, through December 1, 2012 the date which the company no longer reports undistributed earnings or losses. The Company’s investment in Blade Dynamics is included in other assets on the unaudited condensed consolidated balance sheet and the equity in undistributed losses of Blade Dynamics is included in other income, net, on the unaudited condensed consolidated statements of operations. The net investment activity for the nine months ended December 31, 2012 is as follows (in thousands):
Balance at April 1, 2012 | $ | 6,083
Minority interest in net losses |  | (1,227)
Net foreign exchange rate impact |  | (101)
Balance at December 31, 2012 | $ | 4,755

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- Definition The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=7658923&loc=d3e32787-111569 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=7658923&loc=d3e32847-111569 + Details
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