Fair Value Measurements (Narrative) (Details) - Future Cash Flows - Discount Rate	Sep. 30, 2020
Preferred Stock
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Discount yield of preferred equity	0.14
Notes Payable
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value discount yield of note payable	0.17

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

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- Definition

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).

+ References

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- Definition

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.

+ References

No definition available.

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