FAIR VALUE MEASUREMENTS (Debt) (Details) $ in Thousands	Apr. 30, 2016 USD ($)
Notional Value | Restated term loan credit facility
Fair Value Measurements
Long-term loans and notes	$ 2,275,925
Notional Value | Senior subordinated notes 5.875% due 2020
Fair Value Measurements
Long-term loans and notes	510,000
Fair Value | Restated term loan credit facility
Fair Value Measurements
Long-term loans and notes	2,280,483
Fair Value | Senior subordinated notes 5.875% due 2020
Fair Value Measurements
Long-term loans and notes	$ 534,225