Stock Based Compensation Stock Based Compensation Option Awards Granted (Details) shares in Thousands	6 Months Ended
Jun. 30, 2019 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

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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