XML 23 R55.htm IDEA: XBRL DOCUMENT v3.3.0.814
Equity Incentive Plans (Summary Of Exercisable Options) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit $ 46.86 $ 46.86 $ 51.64 $ 45.20
Exercise price range, upper limit $ 65.50 $ 65.50 $ 65.50 $ 65.50
Options outstanding (in shares) 343,343   343,343  
Weighted avg. life remaining (in years)     3 years 11 months  
Weighted avg. exercise price $ 43.54   $ 43.54  
Aggregate intrinsic value $ 3,347   $ 3,347  
$18.18 - 19.99 [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit     $ 19.02  
Exercise price range, upper limit     $ 19.99  
Options outstanding (in shares) 61,097   61,097  
Weighted avg. life remaining (in years)     3 years 7 months  
20.00 - 29.99 [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit     $ 20.00  
Exercise price range, upper limit     29.99  
30.00 - 39.99 [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit     30.00  
Exercise price range, upper limit     $ 39.99  
Options outstanding (in shares) 12,196   12,196  
Weighted avg. life remaining (in years)     4 years 5 months  
40.00 - 49.99 [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit     $ 40.00  
Exercise price range, upper limit     $ 49.99  
Options outstanding (in shares) 192,222   192,222  
Weighted avg. life remaining (in years)     4 years 1 month  
50.00 - 59.99 [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit     $ 50.00  
Exercise price range, upper limit     $ 59.99  
Options outstanding (in shares) 32,518   32,518  
Weighted avg. life remaining (in years)     6 years 11 months  
60.00 - 65.50 [Member]        
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit     $ 60.00  
Exercise price range, upper limit     $ 65.50  
Options outstanding (in shares) 45,310   45,310  
Weighted avg. life remaining (in years)     1 year 4 months