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Earnings (Loss) Per Share (Tables)
3 Months Ended
Mar. 31, 2015
Earnings Per Share [Abstract]  
Schedule of Anti-dilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Our anti-dilutive securities for the three months ended March 31 are as follows:

(shares, options and stock units in thousands)
2015
2014
Anti-dilutive shares, options, and stock units
1,154

714

Anti-dilutive Series A Notes

2,675

Anti-dilutive Series B Notes

982