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Common Stock - Narrative (Details)	Dec. 31, 2018 vote shares	Sep. 30, 2018 shares	Dec. 31, 2017 shares
Equity [Abstract]
Common Stock, votes per share (in votes) | vote	1
Common stock, shares authorized (in shares) | shares	490,000,000	490,000,000	150,000,000

X

- Definition

Common Stock, Voting Rights1

+ References

No definition available.

+ Details

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X

- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- References

No definition available.

+ Details

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