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Stockholders' Equity - Grant Activity (Details)	6 Months Ended
	Mar. 31, 2020 $ / shares shares
Stock Option - Service Based
Stock Options granted:
Options granted (in shares) | shares	415,719
Weighted average exercise price (USD per share)	$ 6.82
Weighted average grant date fair value (USD per share)	$ 2.72
Stock Option - Market-Based
Stock Options granted:
Options granted (in shares) | shares	402,800
Weighted average exercise price (USD per share)	$ 6.82
Weighted average grant date fair value (USD per share)	$ 2.62
Restricted Stock - Service Based
RSUs & RSAs granted:
Restricted shares granted (in shares) | shares	310,493
Weighted average grant date fair value (USD per share)	$ 5.92
Restricted Stock - Market Based
RSUs & RSAs granted:
Restricted shares granted (in shares) | shares	173,600
Weighted average grant date fair value (USD per share)	$ 4.49

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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-Publisher FASB
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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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