Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Summary Of Stock Option Activity) (Details)

v3.3.1.900
Stock-Based Compensation (Summary Of Stock Option Activity) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Options outstanding at beginning of period, Shares 5,000 210,241 335,241  
Granted, Shares 0 0 0  
Exercised, Shares (5,000) (205,241) (125,000)  
Forfeited/expired, Shares 0 0 0  
Options Outstanding end of period, Shares 0 5,000 210,241 335,241
Options exercisable at end of period, Shares 0      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]        
Options outstanding at beginning of period, Weighted Average Exercise Price per Share (usd per share) $ 9.07 $ 3.50 $ 6.37  
Granted, Weighted Average Exercise Price (usd per share) 0.00 0.00 0.00  
Exercised, Weighted Average Exercise Price per Share (usd per share) 9.07 3.36 11.20  
Forfeited/expired, Weighted Average Exercise Price per Share (usd per share) 0.00 0.00 0.00  
Options outstanding end of period, Weighted Average Exercise Price per Share (usd per share) 0.00 $ 9.07 $ 3.50 $ 6.37
Options exercisable, Weighted Average Exercise Price per Share (usd per share) $ 0.00      
Options outstanding, Weighted Average Remaining Contractual Term 0 years 8 months 8 days 1 year 25 days 2 years 4 months 20 days
Options outstanding, Aggregate Intrinsic Value at beginning of period $ 163 $ 12,538 $ 10,678  
Exercised, Aggregate Intrinsic Value 124 12,822 4,797  
Options outstanding, Aggregate Intrinsic Value at end of period $ 0 $ 163 $ 12,538 $ 10,678
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term 0 years      
Options exercisable at end of period, Aggregate Intrinsic Value $ 0