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Activity Related to Liability for Special Charges (Detail) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2013
Special Charges [Line Items]  
Balance at December 31, 2012 $ 15,213
Additions 7,699
Payments (9,221)
Foreign currency translation adjustment and other (228)
Balance at September 30, 2013 13,463
Employee Termination Costs
 
Special Charges [Line Items]  
Balance at December 31, 2012 6,696
Additions 7,009
Payments (6,566)
Foreign currency translation adjustment and other (228)
Balance at September 30, 2013 6,911
Lease Termination Costs
 
Special Charges [Line Items]  
Balance at December 31, 2012 8,517
Additions 690
Payments (2,655)
Balance at September 30, 2013 $ 6,552