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Stock Based Compensation Stock Based Compensation Option Awards Granted (Details)
shares in Thousands
3 Months Ended
Mar. 31, 2020
shares
Employee Stock Plan [Member] | Share-based Payment Arrangement, Option [Member]  
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 0