FAIR VALUE MEASUREMENTS AND DERIVATIVE INSTRUMENTS - Forward Contracts Outstanding (Details) (Usd Denominated Forward Contracts) In Thousands, unless otherwise specified	May 31, 2014 USD ($)	May 31, 2014 Indian rupee USD ($)	May 31, 2014 Indian rupee INR	May 31, 2014 Short Australian dollar USD ($)	May 31, 2014 Short Australian dollar AUD	May 31, 2014 Short British pound USD ($)	May 31, 2014 Short British pound GBP (£)	May 31, 2014 Short Euro USD ($)	May 31, 2014 Short Euro EUR (€)	May 31, 2014 Short Japanese yen USD ($)	May 31, 2014 Short Japanese yen JPY (¥)	May 31, 2014 Short Korean won USD ($)	May 31, 2014 Short Korean won KRW	May 31, 2014 Short Mexican peso USD ($)	May 31, 2014 Short Mexican peso MXN	May 31, 2014 Short Polish zloty USD ($)	May 31, 2014 Short Polish zloty PLN	May 31, 2014 Short South African rand USD ($)	May 31, 2014 Short South African rand ZAR	May 31, 2014 Short New Taiwan dollar USD ($)	May 31, 2014 Short New Taiwan dollar TWD	May 31, 2014 Long Brazilian real USD ($)	May 31, 2014 Long Brazilian real BRL	May 31, 2014 Long Swedish krona USD ($)	May 31, 2014 Long Swedish krona SEK
Derivative [Line Items]
Notional value of forward contracts sold		$ 2,513	148,888	$ 2,697	2,900	$ 10,394	£ 6,200	$ 24,005	€ 17,500	$ 1,111	¥ 113,000	$ 749	765,000	$ 0	0	$ 494	1,500	$ 2,551	27,000	$ 1	27,000	$ 935	2,100	$ 1,794	12,000
Fair Value Gain (Loss)	$ (172)	$ 14		$ (24)		$ 46		$ (134)		$ (5)		$ (9)		$ (13)		$ 1		$ 3		$ (6)		$ 6		$ (51)