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Activity Related to Liability for Special Charges (Detail)
$ in Thousands
6 Months Ended
Jun. 30, 2015
USD ($)
Special Charges [Line Items]  
Beginning Balance $ 18,613
Payments (4,176)
Foreign currency translation adjustment and other (168)
Ending Balance 14,269
Employee Termination Costs  
Special Charges [Line Items]  
Beginning Balance 13,759
Payments (3,680)
Foreign currency translation adjustment and other (168)
Ending Balance 9,911
Lease Costs  
Special Charges [Line Items]  
Beginning Balance 4,854
Payments (496)
Ending Balance $ 4,358