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Loss per Share (Details) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Weighted average potential common shares
Loss per share
Antidilutive securities excluded from earnings per share (in shares)	76	39
Weighted average employee stock options and other stock warrants
Loss per share
Antidilutive securities excluded from earnings per share (in shares)	7,639	6,299

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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