XML 21 R47.htm IDEA: XBRL DOCUMENT

Business Segments (Schedule Of Business Segments Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Mar. 31, 2011
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 275,363	$ 441,209
Wind [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	89,370	145,464
Grid [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	70,285	67,081
Corporate Assets [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 115,708	$ 228,664

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References+ Details