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Reconciliation of Basic and Diluted Shares (Details 2) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Restricted stock units
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	0	324	103	267
Stock options
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	200	297	210	306
Stock appreciation rights
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	372	1,417	453	1,119
Performance share units
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	136	0	78	0
Share-based Compensation Award, Tranche One [Member]
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	0	103	0	106

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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