Fair Value Measurements (Narrative) (Details)	3 Months Ended	6 Months Ended
Jun. 30, 2019 $ / shares shares	Jun. 30, 2019 $ / shares shares
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Common stock issued for warrants (in shares)	0
Fair value per share (in dollars per share) \| $ / shares	$ 0.01	$ 0.01
Initial Backstop And Additional Backstop Warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Common stock issued for warrants (in shares)		422,000,000
Volatility Rate
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Volatility rate to value warrants	0.60	0.60
Future Cash Flows \| Discount Rate \| Preferred Stock
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount yield of preferred equity	0.15	0.15
Future Cash Flows \| Discount Rate \| Notes Payable
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value discount yield of note payable	0.12	0.12

Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt.

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Value of input used to measure investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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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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Price of a single share of a number of saleable stocks of a company.

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Number of new stock issued during the period.

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Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

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