OTHER CHARGES (INCOME), NET (Details) (USD $)	12 Months Ended
	Mar. 31, 2013 investments	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2013 Warrant	Mar. 31, 2011 6.25% Senior Subordinated Notes	Dec. 31, 2010 6.25% Senior Subordinated Notes
Debt Instrument
Net gain on fair value adjustment				$ 74,437,000
Number of investments sold	2
Loss on sale of investment	1,300,000
Recognized gain (loss) connection with the sale of certain international entities		20,000,000	(11,700,000)
Net gain (charges) recognized			6,300,000
Loss on early redemption of Senior Subordinated Notes					13,200,000
Debt instrument interest rate (as a percent)					6.25%	6.25%
Gain on sale of equity investment			$ 18,600,000