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Stock-Based Incentive Plans Stock Options (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 930,000  
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price $ 3.91  
Outstanding at December 31, 2015 5,830,000  
Exercised (83,000)  
Outstanding at December 31, 2016 3,509,000 5,830,000
Vested 2,339,000  
Exercisable at December 31, 2016 2,339,000  
Outstanding at December 31, 2015, weighted average exercise price $ 5.13  
Exercised, weighted average exercise price 3.12  
Outstanding at December 31, 2016, weighted average exercise price 4.96 $ 5.13
Vested, weighted average exercise price 4.82  
Exercisable, weighted average exercise price $ 4.82  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 4 years 1 month 6 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term 3 years 2 months 12 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value $ 0  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term 3 years 2 months 12 days  
Outstanding at December 31, 2016, aggregate, intrinsic value $ 0  
Vested, aggregate intrinsic value 0  
Exercisable, aggregate intrinsic value 0  
Share-based Compensation Arrangment by Share-based Payment Award, Options, Granted, Fair Value 1,588,000  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value $ 1,918,000 $ 2,009,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period (3,168,000)  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price $ 5.00  
Employee Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 1 year  
Unrecognized Compensation Expense Options $ 844,000