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Stock Incentive Plan (Schedule Of SSAR Exercise Price Range, Number Of Shares, Weighted Average Exercise Price And Remaining Contractual Lives) (Details) (USD $)
 12 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2013
$21.45 - $32.01
Dec. 31, 2013
$33.65 - $44.55
Dec. 31, 2013
$47.89 - $63.64
Dec. 31, 2013
Stock Appreciation Rights (SARs)
Dec. 31, 2012
Stock Appreciation Rights (SARs)
Dec. 31, 2013
Stock Appreciation Rights (SARs)
$21.45 - $32.01
Dec. 31, 2013
Stock Appreciation Rights (SARs)
$33.65 - $44.55
Dec. 31, 2013
Stock Appreciation Rights (SARs)
$47.89 - $63.64
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]                  
Current Fiscal Year End Date --12-31                
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number         1,094,836 1,073,087 159,281 132,025 803,530
Range of Exercise Prices, lower limit   $ 21.45 $ 33.65 $ 47.89          
Range of Exercise Prices, upper limit   $ 32.01 $ 44.55 $ 63.64          
SSAR Outstanding, Weighted Average Remaining Contractual Life (Years)             2 years 1 month 6 days 3 years 1 month 6 days 4 years 10 months 24 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Exercise Price             $ 21.87 $ 33.93 $ 53.24
SSARs Exercisable, Exercisable as of December 31, 2012         464,706   157,656 90,325 216,725
SSARs Exercisable, Weighted Average Exercise Price         $ 39.26   $ 21.73 $ 33.90 $ 54.25
Shares available for grant 3,600,000