Stockholders' Equity and Compensation Arrangements Performance Share Units (Details)	Sep. 30, 2017 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance Share Units, Shares Issuable Upon Vesting	$ (503,735)
Performance Share Units, Weighted Average Grant Date Fair Value	$ 3.78
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant \| shares	70,056,534
Performance Share Units, Maximum Number of Shares Issuable Upon Vesting	$ 2,267,562
Performance Share Units, Total Grant Date Fair Value, Conditions Met	$ 2,400,000

Performance Share Units, Maximum Number of Shares Issuable Upon Vesting

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Performance Share Units, Shares Issuable Upon Vesting

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Performance Share Units, Total Grant Date Fair Value, Conditions Met

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Performance Share Units, Weighted Average Grant Date Fair Value

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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.

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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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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