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Changes in Liability and Balance Related to Restructuring Plan (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Changes in the liability and the balance related restructuring plan
Beginning balance	$ 185
Restructuring charges	726
Payments	(821)
Ending balance	$ 90

- 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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