STOCKHOLDERS' EQUITY (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	3 Months Ended
	Oct. 24, 2012	Sep. 30, 2012	Sep. 30, 2011
Share Repurchase Plan
Shares repurchased during the period under share purchase plan		1.5	1.0
Aggregate cost of repurchase under share purchase plan		$ 67.2	$ 31.0
Remaining authorized amount available to repurchase plan		23.2
Amount of common stock authorized to be repurchased by board of directors	$ 150.0