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Activity Related to Liability for Special Charges (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Special Charges [Line Items]  
Balance at December 31, 2011 $ 4,758
Additions 22,153
Payments (4,543)
Foreign currency translation adjustment and other (266)
Balance at June 30, 2012 22,102
Employee Termination Costs
 
Special Charges [Line Items]  
Balance at December 31, 2011 4,758
Additions 14,086
Payments (4,372)
Foreign currency translation adjustment and other (266)
Balance at June 30, 2012 14,206
Lease Termination Costs
 
Special Charges [Line Items]  
Additions 8,067
Payments (171)
Balance at June 30, 2012 $ 7,896