XML 23 R79.htm IDEA: XBRL DOCUMENT v2.4.0.6
Employee Benefit Plan - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Employees maximum 401(k) contribution, percentage 100.00%    
Employees maximum 401(k) contribution, amount $ 4,000    
Defined contribution plan, contribution 3,500,000 2,800,000 2,900,000
Employer 401(k) matching contribution to employee, maximum percentage 4.00%    
Defined contribution plan, employer matching percentage on every deferred dollar 100.00%    
EMEA
      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined contribution plan, contribution 1,300,000 1,300,000 1,300,000
Employees Under Age 50
      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Employees maximum 401(k) contribution, amount 17,000    
Employees aged 50 or older
      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Employees maximum 401(k) contribution, amount $ 22,500    
Employed at December 1, 2000 | EMEA
      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined contribution plan, employer contribution percentage of eligible compensation minimum 8.50%    
Employees aged over 55 years | EMEA
      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined contribution plan, employer contribution percentage of eligible compensation maximum 15.50%    
Employed subsequent to December 1, 2000 | EMEA
      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined contribution plan, employer contribution percentage of eligible compensation 6.00%