Treasury Stock (Tables)

3 Months Ended

Aug. 31, 2013

Disclosure Text Block Supplement [Abstract]

Tabular Disclosure of an Entity's Treasury Stock [Table Text Block]

The Board of Directors has authorized the Company to repurchase Common Stock, from time to time as conditions allow, on the open market or through negotiated private transactions. The table below represents the remaining Board authorization:

Board Authorization	Amount
September 2010	$	44.0
Less repurchases made under this authorization		(25.0	)
Remaining Board authorization at August 31, 2013	$	19.0