XML 39 R71.htm IDEA: XBRL DOCUMENT v2.4.0.6
Share-based compensation (Details 3) (USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Restricted shares
       
Restricted stock awards and restricted stock units        
Outstanding, beginning of period (in shares) 14,807 57,909 46,807 89,709
Vested (in shares) (1,000)   (33,000) (29,800)
Forfeited (in shares)   (300)   (2,300)
Outstanding, end of period (in shares) 13,807 57,609 13,807 57,609
Weighted-average grant-date fair value per share        
Outstanding, beginning of period (in dollars per share) $ 22.45 $ 23.91 $ 24.45 $ 24.64
Vested (in dollars per share) $ 24.68   $ 25.35 $ 26.03
Forfeited (in dollars per share)   $ 24.71   $ 24.98
Outstanding, end of period (in dollars per share) $ 22.29 $ 23.90 $ 22.29 $ 23.90
Unrecognized compensation cost $ 0.2   $ 0.2  
Weighted-average period over which unrecognized compensation cost expected to be recognized     2 years 2 months 12 days  
Aggregate fair value of vested shares and related dividends     0.8 0.8
Tax benefits     0.2 0.1
Restricted stock units
       
Restricted stock awards and restricted stock units        
Outstanding, beginning of period (in shares) 319,071 231,517 247,286 146,500
Granted (in shares)   10,000 94,846 96,017
Vested (in shares) (2,500)   (23,997)  
Forfeited (in shares) (3,346)   (4,910) (1,000)
Outstanding, end of period (in shares) 313,225 241,517 313,225 241,517
Weighted-average grant-date fair value per share        
Outstanding, beginning of period (in dollars per share) $ 22.81 $ 21.70 $ 21.80 $ 19.80
Granted (in dollars per share)   $ 22.31 $ 26.00 $ 24.69
Vested (in dollars per share) $ 22.31   $ 24.69  
Forfeited (in dollars per share) $ 24.63   $ 24.92 $ 22.60
Outstanding, end of period (in dollars per share) $ 22.80 $ 21.73 $ 22.80 $ 21.73
Total weighted-average grant-date fair value   0.2 2.5 2.4
Unrecognized compensation cost 3.9   3.9  
Weighted-average period over which unrecognized compensation cost expected to be recognized     2 years 8 months 12 days  
Aggregate fair value of vested shares and related dividends     0.7  
Tax benefits     $ 0.2