Annual report pursuant to Section 13 and 15(d)

Stock-Based Awards (Summary Of Information About Stock Options And SARs Outstanding And Exercisable) (Details)

v3.3.1.900
Stock-Based Awards (Summary Of Information About Stock Options And SARs Outstanding And Exercisable) (Details)
12 Months Ended
Dec. 31, 2015
$ / shares
shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number Outstanding at December 31 | shares 1,810,973
Number Exercisable at December 31 | shares 979,546
$0.00 to $9.99 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower limit $ 0.00
Range of exercise prices, upper limit $ 9.99
Number Outstanding at December 31 | shares 106,698
Weighted Average Exercise Price $ 4.92
Weighted Average Remaining Contractual Term in Years 3 years
Number Exercisable at December 31 | shares 106,698
Weighted Average Exercise Price $ 4.92
$10.00 to $19.99 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower limit 10.00
Range of exercise prices, upper limit $ 19.99
Number Outstanding at December 31 | shares 68,851
Weighted Average Exercise Price $ 15.59
Weighted Average Remaining Contractual Term in Years 2 years 11 months
Number Exercisable at December 31 | shares 68,851
Weighted Average Exercise Price $ 15.59
$20.00 to $29.99 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower limit 20.00
Range of exercise prices, upper limit $ 29.99
Number Outstanding at December 31 | shares 57,541
Weighted Average Exercise Price $ 25.86
Weighted Average Remaining Contractual Term in Years 5 years 1 month
Number Exercisable at December 31 | shares 57,541
Weighted Average Exercise Price $ 25.86
$30.00 to $39.99 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower limit 30.00
Range of exercise prices, upper limit $ 39.99
Number Outstanding at December 31 | shares 450,822
Weighted Average Exercise Price $ 37.52
Weighted Average Remaining Contractual Term in Years 3 years 2 months
Number Exercisable at December 31 | shares 450,822
Weighted Average Exercise Price $ 37.52
$40.00 to $49.99 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower limit 40.00
Range of exercise prices, upper limit $ 49.99
Number Outstanding at December 31 | shares 380,709
Weighted Average Exercise Price $ 47.73
Weighted Average Remaining Contractual Term in Years 8 years 1 month
Number Exercisable at December 31 | shares 115,890
Weighted Average Exercise Price $ 47.74
$50.00 to $59.99 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower limit 50.00
Range of exercise prices, upper limit $ 59.99
Number Outstanding at December 31 | shares 287,182
Weighted Average Exercise Price $ 51.56
Weighted Average Remaining Contractual Term in Years 7 years 2 months
Number Exercisable at December 31 | shares 179,744
Weighted Average Exercise Price $ 51.57
$60.00 to $69.99 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of exercise prices, lower limit 60.00
Range of exercise prices, upper limit $ 69.99
Number Outstanding at December 31 | shares 459,170
Weighted Average Exercise Price $ 65.24
Weighted Average Remaining Contractual Term in Years 9 years 1 month
Number Exercisable at December 31 | shares 0
Weighted Average Exercise Price $ 0.00