Quarterly report pursuant to Section 13 or 15(d)

Stock Repurchase Programs (Details)

v2.4.0.8
Stock Repurchase Programs (Details) (USD $)
In Millions, except Share data, unless otherwise specified
1 Months Ended 3 Months Ended 1 Months Ended
Nov. 30, 2011
Dec. 31, 2013
Dec. 31, 2012
Feb. 07, 2014
Subsequent events
Stock Repurchase Programs        
Stock repurchase programs, authorized amount $ 125.0      
Common shares repurchased   505,738 499,098 231,100
Common shares repurchased, cost   22.5 14.6 9.9
Amount remaining available for future stock repurchases   $ 74.9