FOREIGN CURRENCY DERIVATIVES (Details)	12 Months Ended								12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended
	Mar. 31, 2012 USD ($)	Mar. 31, 2011 USD ($)	Mar. 31, 2010 USD ($)	Mar. 31, 2012 EUR (€)	Mar. 31, 2012 GBP (£)	Mar. 31, 2011 EUR (€)	Mar. 31, 2011 GBP (£)	Mar. 31, 2012 GBP And EURO [Member] USD ($)	Mar. 31, 2012 Foreign currency swap contract [Member] USD ($)	Mar. 31, 2012 Foreign currency swap contract [Member] MXN	Mar. 31, 2011 Foreign currency swap contract [Member] MXN	Mar. 31, 2012 Foreign Exchange Forward, EURO [Member] USD ($)	Mar. 31, 2012 Foreign Exchange Forward, EURO [Member] EUR (€)	Mar. 31, 2011 Foreign Exchange Forward, EURO [Member] EUR (€)	Mar. 31, 2012 Foreign Exchange Forward, GBP [Member] USD ($)	Mar. 31, 2012 Foreign Exchange Forward, GBP [Member] GBP (£)	Mar. 31, 2011 Foreign Exchange Forward, GBP [Member] GBP (£)	Mar. 31, 2012 Foreign Exchange Forward, AUD [Member] USD ($)	Mar. 31, 2012 Foreign Exchange Forward, AUD [Member] AUD	Mar. 31, 2011 Foreign Exchange Forward, AUD [Member] AUD
Derivative [Line Items]
One Month Maturity												1 month	1 month		1 month	1 month		1 month	1 month
Twelve Month Maturity									12 months	12 months
Notional Amount of Foreign Currency Cash Flow Hedge Derivatives				€ 63,700,000	£ 20,000,000	€ 52,700,000	£ 14,500,000		$ 23,511,000	317,500,000	343,900,000	$ 25,349,000	€ 19,000,000	€ 18,000,000	$ 5,756,000	£ 3,600,000	£ 4,000,000	$ 2,688,000	2,600,000	3,400,000
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net, GBP and Euro	(2,400,000)	2,500,000	1,800,000
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months								$ 1,200,000
Derivative, Currency Sold												Sell EUR	Sell EUR		Sell GBP	Sell GBP		Sell AUD	Sell AUD
Derivative, Remaining Maturity									Monthly over 12 months	Monthly over 12 months		1 month	1 month		1 month	1 month		1 month	1 month
Derivative, Currency Bought									Buy MX$	Buy MX$