FOREIGN CURRENCY DERIVATIVES (Details)	3 Months Ended	6 Months Ended				6 Months Ended			6 Months Ended			6 Months Ended
	Sep. 30, 2012 USD ($)	Sep. 30, 2012 USD ($)	Sep. 30, 2011 USD ($)	Sep. 30, 2012 MXN	Mar. 31, 2012 MXN	Sep. 30, 2012 Foreign Exchange Forward, EURO [Member] USD ($)	Sep. 30, 2012 Foreign Exchange Forward, EURO [Member] EUR (€)	Mar. 31, 2012 Foreign Exchange Forward, EURO [Member] EUR (€)	Sep. 30, 2012 Foreign Exchange Forward, GBP [Member] USD ($)	Sep. 30, 2012 Foreign Exchange Forward, GBP [Member] GBP (£)	Mar. 31, 2012 Foreign Exchange Forward, GBP [Member] GBP (£)	Sep. 30, 2012 Foreign Exchange Forward, AUD [Member] USD ($)	Sep. 30, 2012 Foreign Exchange Forward, AUD [Member] AUD	Sep. 30, 2012 Foreign currency swap contract [Member] USD ($)	Sep. 30, 2012 Foreign currency swap contract [Member] MXN
Derivative [Line Items]
One Month Maturity						1 month	1 month		1 month	1 month		1 month	1 month
Monthly Maturity Over Six Months														6 months	6 months
Notional Amount of Foreign Currency Cash Flow Hedge Derivatives				159,200,000	317,500,000		€ 55,800,000	€ 63,700,000		£ 19,800,000	£ 20,000,000			$ 11,438,000	159,200,000
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net, GBP and Euro	1,200,000	3,100,000	(2,600,000)
Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments						$ 22,414,000	€ 17,400,000		$ 2,582,000	£ 1,600,000		$ 3,836,000	3,700,000
Derivative, Currency Sold						Sell EUR	Sell EUR		Sell GBP	Sell GBP		Sell AUD	Sell AUD
Derivative, Currency Bought														Buy MX$	Buy MX$
Derivative, Remaining Maturity						1 month	1 month		1 month	1 month		1 month	1 month	6 months	6 months