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Loss Per Share (Schedule Of Common Shares Potentially Issuable) (Details) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common shares potentially issuable	28,024	29,217
Warrants, Options And Stock-Based Compensation [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common shares potentially issuable	10,216	9,055
Convertible Debt [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common shares potentially issuable	16,117	15,933
Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common shares potentially issuable	1,691	4,229

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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