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Activity Related to Liability for Special Charges (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Special Charges [Line Items]    
Beginning Balance $ 4,758 $ 4,682
Additions 24,550 10,370
Payments (13,560) (10,034)
Foreign currency translation adjustment and other (535) (260)
Ending Balance 15,213 4,758
Employee Termination Costs
   
Special Charges [Line Items]    
Beginning Balance 4,758 1,920
Additions 14,276 10,370
Payments (11,803) (7,388)
Foreign currency translation adjustment and other (535) (144)
Ending Balance 6,696 4,758
Lease Termination Costs
   
Special Charges [Line Items]    
Beginning Balance   2,762
Additions 10,274  
Payments (1,757) (2,646)
Foreign currency translation adjustment and other   (116)
Ending Balance $ 8,517