XML 84 R91.htm IDEA: XBRL DOCUMENT v2.4.0.8
Share-based Compensation plans - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2013
2004 LTIP Plan [Member]
Jun. 29, 2004
2004 LTIP Plan [Member]
Dec. 31, 2013
2004 LTIP Plan [Member]
Employees [Member]
Dec. 31, 2013
2004 LTIP Plan [Member]
Non-Employees Director [Member]
Dec. 31, 2013
2004 LTIP Plan [Member]
Minimum [Member]
Non-Employees Director [Member]
Dec. 31, 2013
2004 LTIP Plan [Member]
Maximum [Member]
Non-Employees Director [Member]
Dec. 31, 2013
Stock Purchase Plan [Member]
Dec. 31, 2013
Stock Purchase Plan [Member]
North America, South America and Asia [Member]
Dec. 31, 2013
Stock Purchase Plan [Member]
Minimum [Member]
Dec. 31, 2013
Stock Purchase Plan [Member]
Maximum [Member]
Dec. 31, 2013
Stock Purchase Plan [Member]
Maximum [Member]
Customers and Distributors Based in Europe [Member]
Dec. 31, 2013
Staff Share Option Plan [Member]
Dec. 31, 2013
Staff Share Option Plan [Member]
2004 LTIP Plan [Member]
Dec. 31, 2013
Restricted Stock [Member]
Dec. 31, 2012
Restricted Stock [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]                                    
Amount of shares reserved for issuance       1,600,000 3,100,000         1,850,000                
Options outstanding 1,924,179 1,945,955   515,917                     15,000 1,243,262    
Options exercisable 1,367,269     22,668                     15,000 1,179,601    
Restricted stock outstanding 286,704 160,831   279,039                       7,665    
Award vesting period           3 years   3 years 5 years           5 years      
Number of shares approved for annual grant             5,000                      
Award Contractual term                             10 years 10 years    
Full value award limit       100,000                            
Percentage of compensation eligible employees to be deducted for purchase of common stock                     25.00% 1.00% 25.00% 15.00%        
Purchase price of shares equivalent to fair market value 85.00%                                  
Shares issued under stock purchase plan 1,437,519                                  
Unamortized compensation expense $ 2.8                               $ 6.7  
Weighted average remaining contractual life of exercisable options (in years) 2 years 10 months 21 days                                  
Total intrinsic value of options exercised 0.4 7.2 4.2                              
Closing stock price $ 22.82                                  
Aggregate intrinsic value of options outstanding 0.5 11.2 10.8                              
Aggregate intrinsic value of options exercisable $ 0.2 $ 9.8 $ 8.4                              
Non-vested shares 269,791                               269,791 149,500