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Earnings Per Share (Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share) (Details) (Stock options and SARs, USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Stock options and SARs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options and SARs	73,500	149,665
Average exercise price	$ 64.43	$ 58.41

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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