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Share-Based Plans (Options Outstanding and Options Exercisable) (Details)
12 Months Ended
Dec. 31, 2019
shares
Share-based Payment Arrangement [Abstract]  
Options Outstanding, Weighted-Average Remaining Contractual Life (years) 2 years 8 months 12 days
Options Exercisable, Weighted-Average Remaining Contractual Life (years) 2 years 8 months 12 days
Number of options outstanding (in shares) 420,931
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 420,931