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Segment Information - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2013 Region	Sep. 30, 2012 Region
Segment Reporting Information [Line Items]
Number of geographic regions		3	3
Restructuring charges	$ 0	$ 0	$ 810
Europe Segment [Member]
Segment Reporting Information [Line Items]
Restructuring charges			$ 800

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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