XML 84 R70.htm IDEA: XBRL DOCUMENT v3.10.0.1
Equity Incentive Plans (Summary Of Exercisable Options) (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Exercise price range, lower limit $ 61.79 $ 61.79  
Exercise price range, upper limit $ 76.63 $ 76.63 $ 61.79
Options outstanding 208,841    
Weighted avg. life remaining 4 years 5 months    
Weighted avg. exercise price $ 50.73    
Aggregate intrinsic value $ 2,784    
$ 19.02 - 19.99 [Member]      
Exercise price range, lower limit $ 19.02    
Exercise price range, upper limit $ 19.99    
Options outstanding 11,097    
Weighted avg. life remaining 5 months    
20.00 - 29.99 [Member]      
Exercise price range, lower limit $ 20.00    
Exercise price range, upper limit $ 29.99    
Options outstanding 0    
30.00 - 39.99 [Member]      
Exercise price range, lower limit $ 30.00    
Exercise price range, upper limit $ 39.99    
Options outstanding 1,428    
Weighted avg. life remaining 1 year    
40.00 - 49.99 [Member]      
Exercise price range, lower limit $ 40.00    
Exercise price range, upper limit $ 49.99    
Options outstanding 72,342    
Weighted avg. life remaining 3 years 1 month    
50.00 - 59.99 [Member]      
Exercise price range, lower limit $ 50.00    
Exercise price range, upper limit $ 59.99    
Options outstanding 68,033    
Weighted avg. life remaining 5 years    
60.00 - 69.99 [Member]      
Exercise price range, lower limit $ 60.00    
Exercise price range, upper limit $ 61.79    
Options outstanding 55,387    
Weighted avg. life remaining 6 years 1 month    
70.00 - 76.63 [Member]      
Exercise price range, lower limit $ 70.00    
Exercise price range, upper limit $ 76.63    
Options outstanding 554    
Weighted avg. life remaining 8 years 1 month