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Stockholders' Equity - RSU Activity (Details) - RSUs	3 Months Ended
	Dec. 31, 2019 $ / shares shares
Number of Shares
Outstanding at September 30, 2019 (in shares) | shares	2,352,487
Granted (in shares) | shares	936,388
Settled (in shares) | shares	(473,914)
Canceled (in shares) | shares	(69,739)
Outstanding at December 31, 2019 (in shares) | shares	2,745,222
Weighted-Average Fair Market Value Per Share
Outstanding at September 30, 2019 (in dollars per share) | $ / shares	$ 8.26
Granted (in dollars per share) | $ / shares	7.19
Settled (in dollars per share) | $ / shares	7.61
Canceled (in dollars per share) | $ / shares	8.96
Outstanding at December 31, 2019 (in dollars per share) | $ / shares	$ 7.99

X

- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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Number of non-option equity instruments exercised by participants.

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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