Components of Corporate Restructuring and Other Reorganization Activities from Recent Acquisitions (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 1,914
Restructuring charges incurred	3,733
Amounts paid during the period	(4,258)	(6,000)
Foreign currency translation	(71)
Ending balance	1,318
Severance
Restructuring Cost and Reserve [Line Items]
Beginning balance	618
Restructuring charges incurred	3,733
Amounts paid during the period	(3,790)
Foreign currency translation	(9)
Ending balance	552
Facility Closures
Restructuring Cost and Reserve [Line Items]
Beginning balance	1,296
Restructuring charges incurred
Amounts paid during the period	(468)
Foreign currency translation	(62)
Ending balance	$ 766