BANK BORROWINGS AND LONG-TERM DEBT (Details 4) (USD $)	12 Months Ended								12 Months Ended				0 Months Ended				12 Months Ended		12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2013 Asia Term Loan	Mar. 31, 2012 Asia Term Loan	Feb. 17, 2011 Asia Term Loan	Sep. 28, 2010 Asia Term Loan	Sep. 27, 2010 Asia Term Loan	Mar. 31, 2013 Asia Term Loan LIBOR	Feb. 17, 2011 Asia Term Loan LIBOR	Sep. 28, 2010 Asia Term Loan LIBOR	Sep. 27, 2010 Asia Term Loan LIBOR	Sep. 27, 2010 Asia Term Loan Prime rate	Sep. 27, 2010 Asia Term Loan Federal Funds rate	Feb. 20, 2013 Term Loan Agreement	Oct. 19, 2011 Term Loan Agreement	Mar. 31, 2013 Term Loan Agreement	Mar. 31, 2008 Term Loan Agreement	Mar. 31, 2013 Term Loan Agreement LIBOR	Mar. 31, 2013 Term Loan Agreement Prime rate	Mar. 31, 2013 Term Loan Agreement Federal Funds rate	Mar. 31, 2013 Term Loan Agreement Prime rate or Federal Funds rate plus 0.50%	Mar. 31, 2008 Term Loan Agreement Maturing In October 2012
Bank borrowings and long-term debt
Long term loans payable				$ 375,000,000	$ 377,000,000	$ 200,000,000	$ 130,000,000	$ 50,000,000
Borrowings outstanding															1,200,000,000			1,700,000,000
Term loan agreement maturing in October 2012																							500,000,000
Percentage on prepayment of loans																	100.00%
Early repurchases of long-term debt	$ 1,000,000,000	$ 480,000,000	$ 315,495,000												$ 1,000,000,000	$ 480,000,000
Debt instrument, description of variable rate basis									LIBOR				prime rate	Federal Funds rate					LIBOR	prime rate	federal funds rate	prime rate or the federal funds rate plus 0.50%
Debt instrument, basis spread on variable rate										2.28%	2.15%	2.30%	1.00%	0.50%					2.25%		0.50%	1.25%