XML 80 R64.htm IDEA: XBRL DOCUMENT v2.4.0.8
Share-Based Compensation (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 12 Months Ended 3 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2013
Options [Member]
Dec. 31, 2012
Options [Member]
Dec. 31, 2011
Options [Member]
Dec. 31, 2013
Share Awards and Vesting [Member]
Dec. 31, 2012
Share Awards and Vesting [Member]
Dec. 31, 2011
Share Awards and Vesting [Member]
Dec. 31, 2013
Minimum [Member]
Dec. 31, 2013
Minimum [Member]
Options [Member]
Dec. 31, 2012
Minimum [Member]
Options [Member]
Dec. 31, 2013
Maximum [Member]
Dec. 31, 2013
Maximum [Member]
Options [Member]
Dec. 31, 2012
Maximum [Member]
Options [Member]
Jun. 30, 2011
2011 Share Incentive Plan [Member]
Dec. 31, 2013
2011 Share Incentive Plan [Member]
Total fungible units to be issued                               9,100,000 6,700,000
Units available under the 2011 Share Plan                               5,800,000  
Fungible units transferred from the 2002 Share Plan to the 2011 Share Plan                               3,300,000  
Fungible Units To Full Value Award Conversion Ratio                               3.45  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage                   20.00%     33.33%        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period 183,871 468,839 504,838 200,000 500,000                        
Expiration value of option right or other award                               0.83  
Common shares which could be granted pursuant to full value awards                                 1,900,000
Exercise price range for options exercised during the period                     $ 30.06 $ 30.06   $ 62.32 $ 51.37    
Total intrinsic value of options exercised during the period       $ 5.3 $ 12.2 $ 9.6                      
Total unrecognized compensation cost related to unvested options which is expected to be amortized             35.7                    
Remaining weighted average contractual life (years) outstanding options       3 years 73 days                          
Remaining weighted average contractual life (years) exercisable options       2 years 329 days                          
Vesting period, years                     3 years     5 years      
Options granted in current year 0 0 0 0                          
Fair value of shares vested             15.9 13.9 11.5                
Total compensation cost for option and share awards 14.7 13.7 12.3                            
Total capitalized compensation cost for option and share awards 2.2 1.4 0.9                            
Percentage Of Market Value Per Share At Which Shares Purchased Under Employee Share Purchase Plan 85.00%                                
Employee Share Purchase Plan, Maximum Authorized Amount Per Participant 0                                
Share Awards Held In Employee Trust Shares 1,900,000 1,900,000                              
Share Awards Held In Non Qualified Deferred Compensation Plan Shares 41.3 35.7                              
Cash Required By Plan Participants Upon Withdrawal 25.4 25.7                              
Share Awards Held In Non Qualified Deferred Compensation Plan Shares 1,200,000 1,000,000                              
Trading Securities Held In Non Qualified Deferred Compensation Plan Value 18.1 15.2                              
Defined Contribution Plan, Cost Recognized $ 2.2 $ 2.2 $ 1.8