COMMITMENTS AND CONTINGENCIES (Narrative) (Details) $ in Millions	1 Months Ended	3 Months Ended	9 Months Ended
	Apr. 30, 2014 USD ($)	May. 31, 2015 USD ($)	May. 31, 2015 USD ($)	Sep. 18, 2008 entities
Settled litigation
Loss Contingencies [Line Items]
Number of steel manufacturing companies | entities				9
Legal settlement amount	$ 4.0
Net sales [Member]
Loss Contingencies [Line Items]
Benefit from contract termination		$ 45.5	$ 45.5