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Severance and Other Charges (Detail) - Summarizes the activity in the Company`s accrual for severance and other charges (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Accrual at December 31, 2012	$ 490
Payments and other settlements in 2013	(210)
Translation adjustment	(3)
Accrual at March 31, 2013	277
Employee Severance [Member]
Accrual at December 31, 2012	306
Payments and other settlements in 2013	(176)
Translation adjustment	(3)
Accrual at March 31, 2013	127
Lease Termination Costs [Member]
Accrual at December 31, 2012	184
Payments and other settlements in 2013	(34)
Accrual at March 31, 2013	$ 150

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

Amount of foreign currency translation adjustment increasing or decreasing the accrual for a specified type of restructuring cost.