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Restructurings - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2012 People	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reorganizations [Abstract]
Restructuring charges	$ 343	$ 1,364	$ 343
Number of Reduction in the Company's headcount	84

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The number of positions eliminated during the period as a result of restructuring activities.

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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.

+ References

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