Share based compensation arrangement by share based payment award aggregate of target share issued.

No definition available.

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options aggregate grant date fair value.

+ References

No definition available.

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- Definition

The maximum percentage of target performance shares that are eligible to be earned based on achievement of a total shareholder return target.

+ References

No definition available.

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- Definition

The minimum percentage of target performance shares that are eligible to be earned based on achievement of a total shareholder return target.

+ References

No definition available.

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- Definition

Share based compensation arrangement by share based payment award percentage of target shares vested.

+ References

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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-Paragraph 2
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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-Publisher FASB
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-SubTopic 10
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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

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).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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-Publisher FASB
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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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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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- Definition

Number of shares issued under share-based payment arrangement.

+ References

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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-Publisher FASB
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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Stock-Based Awards - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Nov. 30, 2016	Mar. 31, 2013	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield			0.00%	0.00%	0.00%
Compensation expenses			$ 19,226	$ 15,845	$ 13,071
Aggregate of unrecognized stock-based compensation cost			$ 38,298
Weighted average recognition period			2 years 6 months
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate of target share issued			125,000	68,000
PSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded			21,000
Compensation expenses			$ 1,278	$ 641	668
Percentage of target shares vested			80.00%	80.00%
Relative Total Stockholder Return Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded			21,000
Compensation expenses			$ 1,568	$ 1,721	1,267
Percentage of target shares vested			200.00%	192.91%
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expenses			$ 526	$ 789	694
Restricted Stock Units [Member] \| Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Vesting percentage	50.00%
Restricted Stock Units [Member] \| Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Vesting percentage	50.00%
Certain Executives [Member] \| Performance-Based Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares awarded		167,000
Aggregate grant date fair value of award		$ 2,479
Compensation expenses			$ 0	$ 0	$ 413
Certain Executives [Member] \| PSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, requisite service period			2 years
Executive Officers [Member] \| Relative Total Stockholder Return Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares range percentage, minimum			0.00%
Executive Officers [Member] \| Maximum [Member] \| Relative Total Stockholder Return Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares range percentage, maximum			200.00%
Executive Officers [Member] \| Minimum [Member] \| Relative Total Stockholder Return Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares range percentage, maximum			150.00%
2019 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant			1,879,000
2019 Equity Incentive Plan [Member] \| Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, requisite service period			4 years
Options granted, expiration period			10 years
2019 Equity Incentive Plan [Member] \| Employees [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
2019 Equity Incentive Plan [Member] \| Non-Employee Directors [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			1 year
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant			186,000
Shares issued			0