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Activity Related to Liability for Special Charges (Detail) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2012
Special Charges [Line Items]  
Balance at December 31, 2011 $ 4,758
Additions 24,550
Payments (11,614)
Foreign currency translation adjustment and other (295)
Balance at September 30, 2012 17,399
Employee Termination Costs
 
Special Charges [Line Items]  
Balance at December 31, 2011 4,758
Additions 14,276
Payments (10,582)
Foreign currency translation adjustment and other (295)
Balance at September 30, 2012 8,157
Lease Termination Costs
 
Special Charges [Line Items]  
Additions 10,274
Payments (1,032)
Balance at September 30, 2012 $ 9,242