Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION (Additional Information) (Detail)

v2.4.0.8
STOCK-BASED COMPENSATION (Additional Information) (Detail) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2013
OptionPlan
Dec. 31, 2012
Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of active share-based award plan 1    
Number of shares reserved under share-based award plan 11,000,000    
Total income tax benefit recognized for stock-based compensation expense $ 11.6 $ 9.8 $ 8.7
Excess Tax Benefit From Share Based Compensation Operating Activities 14.6 1.7 1.2
Stock options vesting percentage for each year of completed service 33.00%    
Stock options expiration periods 10 years    
Stock options valuation method description We use the binomial model to calculate the fair value of stock options granted on or after January 1, 2006.    
Maximum Percentage Of Target To Which Shares May Be Issued 200.00%    
Minimum Percentage Of Target To Which Shares May Be Issued 0.00%    
Shares Outstanding At 100 Of Target [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Sharebased Payment Award Options Nonvested Number Of Shares 334,778    
Shares Outstanding At 200 Of Target [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Sharebased Payment Award Options Nonvested Number Of Shares 669,556    
Stock Options
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total intrinsic value of stock options exercised 43.2 38.3 9.9
Total unrecognized compensation cost 3.9    
Total unrecognized compensation cost, weighted-average period of recognition 1 year 6 months    
Stock Options | Maximum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock awards vesting periods 3 years    
Nonvested Stock
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total weighted-average fair value on the vesting date 29.1 19.9 12.1
Total weighted-average grant date fair value 15.8 12.8 11.7
Total unrecognized compensation cost $ 29.1    
Total unrecognized compensation cost, weighted-average period of recognition 1 year 9 months 18 days    
Nonvested Stock | Maximum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock awards vesting periods 3 years    
Nonvested Stock | Minimum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock awards vesting periods 1 year