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Components of Corporate Restructuring and Other Reorganization Activities from Recent Acquisitions (Detail) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2012
Restructuring Cost and Reserve [Line Items]  
Beginning balance   
Restructuring charges incurred 13,051
Unfavorable lease liability 518 [1]
Amounts paid during the period (9,046)
Other (38) [2]
Ending balance 4,485
Severance
  
Restructuring Cost and Reserve [Line Items]  
Beginning balance   
Restructuring charges incurred 9,595
Amounts paid during the period (7,905)
Other (38) [2]
Ending balance 1,652
Facility Closures
  
Restructuring Cost and Reserve [Line Items]  
Beginning balance   
Restructuring charges incurred 3,456
Unfavorable lease liability 518 [1]
Amounts paid during the period (1,141)
Ending balance $ 2,833
[1] As a part of the S1 purchase price allocation, $0.5 million had been allocated to an unfavorable lease liability related to the Dublin facility.
[2] Other includes the impact of foreign currency translation.