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Equity Compensation (Schedule of Equity Compensation Stock Options Activity) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Equity Compensation [Abstract]    
Number of options outstanding at beginning of period 9  
Number of options granted 0 0
Number of options exercised 9  
Number of options forfeited 0  
Number of options expired 0  
Number of options outstanding at end of period 0  
Number of options exercisable at end of period 0  
Weighted average exercise price outstanding at beginning of period $ 19.02  
Weighted average exercise price options granted 0  
Weighted average exercise price options exercised 19.02  
Weighted average exercise price options forfeited 0  
Weighted average exercise price options expired 0  
Weighted average exercise price outstanding at end of period 0  
Weighted average exercise price exercisable at end of period $ 0  
Weighted average remaining contractual term outstanding at end of period, years 0 years  
Weighted average remaining contractual term exercisable at end of period, years 0 years  
Aggregate intrinsic value outstanding at end of period $ 0  
Aggregate intrinsic value exercisable at end of period $ 0