XML 13 R39.htm IDEA: XBRL DOCUMENT v2.4.0.8
SHARE-BASED COMPENSATION - Additional Information (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares reserved for future issuance 1.3  
Options exercisable, number of shares 3.5  
Options exercisable, weighted-average exercise price per share $ 341.80  
Employee Stock Purchase Plan
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Employee Stock Purchase Plan, number of shares purchased by employees 0.1 0.1
Employee Stock Purchase Plan, value of shares purchased by employees $ 17.5 $ 16.4
Restricted Stock Units (RSUs)
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares reserved for future issuance 0.6