SUBEQUENT EVENTS (Details) - USD ($)	Oct. 27, 2015	Apr. 30, 2013
Subsequent Event [Line Items]
Stock repurchase program, authorized amount		$ 200,000,000
Subsequent Event
Subsequent Event [Line Items]
Stock repurchase program, authorized amount	$ 75,000,000
Stock Repurchase Program, Period in Force	24 months