Share-based Compensation and Employee Benefit Plans - Summary of Stock Options (Details) - Employee Stock Option	9 Months Ended
Jun. 30, 2018 $ / shares shares
Stock Options
Stock options, beginning (in shares) \| shares	0
Granted (in shares) \| shares	999,492
Exercised (in shares) \| shares	0
Forfeited/canceled (in shares) \| shares	0
Stock options, ending (in shares) \| shares	999,492
Average Grant Date Fair Value Per Unit
Average grant date fair value per unit, granted in period (USD per share)	$ 2.84
Average grant date fair value per unit (USD per share)	2.84
Weighted Average Exercise Price
Stock options, weighted average exercise price, beginning (USD per share)	0.00
Granted, weighted average exercise price, (USD per share)	7.42
Exercised, weighted average exercise price, (USD per share)	0.00
Forfeited/canceled, weighted average exercise price, (USD per share)	0.00
Stock options, weighted average exercise price, ending (USD per share)	$ 7.42

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option 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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Number of options outstanding, including both vested and non-vested options.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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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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Weighted average grant-date fair value of non-vested options outstanding.

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Number of share options (or share units) exercised during the current period.

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