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Capital Stock (Details 3) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restricted stock units
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	265	148	64
Stock options
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	286	389	755
Stock Appreciation Rights (SARs)
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	1,078	530	0
Other stock-based compensation units
Antidilutive securities
Number of securities not included in computation of diluted earnings per share (in shares)	101	317	554

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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