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Stockholders' Equity Stockholders' Equity (Stock-Based Compensation Plans) (Details) shares in Thousands | Sep. 30, 2019 shares
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Class of Stock [Line Items] |
Shares Reserved (in shares) | 2,709
Shares Available to Issue (in shares) | 1,952
Options Outstanding (in shares) | 1,076
Performance Awards Outstanding (in shares) | 501
Amended And Restated 2006 Plan [Member] |
Class of Stock [Line Items] |
Shares Reserved (in shares) | 0
Shares Available to Issue (in shares) | 0
Options Outstanding (in shares) | 940
Performance Awards Outstanding (in shares) | 0
2017 Plan [Member] |
Class of Stock [Line Items] |
Shares Reserved (in shares) | 2,709
Shares Available to Issue (in shares) | 1,952
Options Outstanding (in shares) | 136
Performance Awards Outstanding (in shares) | 501

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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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