XML 81 R66.htm IDEA: XBRL DOCUMENT v3.10.0.1
Share-Based Compensation (Employee Stock Purchase Plan) (Narrative) (Details) - Stock Compensation Plan [Member]
12 Months Ended
Dec. 31, 2018
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of shares authorized 300,000
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate 10.00%
Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Per Employee 100
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent 85.00%
Share-based Compensation Arrangement by Share-based Payment Award, Cumulative Shares Issued under Plan 219,991