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Restructuring - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2014 People Facility	Jun. 30, 2013
Reorganizations [Abstract]
Restructuring charges	$ 198	$ 747	$ 238
Approximate number of workforce reduction from the company's headcount		75
Number of facilities closing		1

- 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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