DISCONTINUED OPERATIONS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues			$ 64,916
Cost of revenues			(53,127)
Operating expenses			(16,433)
Impairment of goodwill and long-lived assets			(25,194)
Restructuring and other related charges			(19)
Loss on sale of AEG			(611)
Loss from operations of discontinued AEG segment (including loss on sale)	0	0	(30,468)
Tax benefit from discontinued operations	0	0	(11,393)
Loss from discontinued operations, net of tax	0	0	(19,075)
Calculation Of Loss On Sale Of Business [Abstract]
Proceeds received upon close			11,075
Escrow payments received to date			2,065
Remaining escrow payments to be received (subsequently received in fiscal year 2011)			1,625
Payment to purchaser for adjustment for final value of net assets under APA			(3,956)
Total estimated proceeds			10,809
Book value of net assets sold			(11,057)
Costs incurred upon closing			$ (363)