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Restructuring Charges (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2014	Mar. 31, 2014 Position	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Restructuring Charges [Abstract]
Number of workforce reduced		93
Percentage of reduction in workforce (in hundredths)		11.00%
Restructuring charge	$ 0	$ 907	$ 0	$ 907	$ 0

- 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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