Quarterly report pursuant to Section 13 or 15(d)

Stock repurchase program (Details)

v2.4.0.8
Stock repurchase program (Details) (USD $)
In Millions, except Share data, unless otherwise specified
1 Months Ended 9 Months Ended 1 Months Ended
Jun. 30, 2014
May 31, 2014
Nov. 30, 2011
Jun. 30, 2014
Jun. 30, 2013
Aug. 08, 2014
Subsequent Event [Member]
Stock Repurchase Programs            
Stock repurchase programs, authorized amount $ 150   $ 125      
Amount remaining available for future stock repurchases 193.7 43.7   187.3    
Common shares repurchased       1,406,667 828,898 403,433
Common shares repurchased, cost       $ 60.9 $ 27.0 $ 17.0