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Income Per Share - Additional Information (Details) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Per Share (Textual) [Abstract]
Additional dilutive shares related to share-based compensation	275	323	342	349
Stock options
Income Per Share (Textual) [Abstract]
Common stock shares effect would be anti-dilutive	27	47

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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