Employee Service Share-Based Compensation Novested Awards Total Compensation Cost Unrecognized Weighted Average Period

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- Definition

Share Based Compensation Award Ratio

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Share based compensation program effective date.

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- Definition

Share based compensation share based payment award percentage earning range.

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- Definition

Share Based Compensation Stock Optoins Vesting Percentage

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- Definition

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

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

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- Definition

Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.

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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 equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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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.

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Number of shares authorized for issuance under share-based payment arrangement.

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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.

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Number of options outstanding, including both vested and non-vested options.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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- Definition

Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Share-Based Compensation (Narrative) (Details) $ in Thousands	12 Months Ended
	Aug. 31, 2020 USD ($) item shares	Aug. 31, 2019 USD ($) shares	Aug. 31, 2018 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax total unrecognized compensation cost related to nonvested share-based compensation \| $	$ 6,500
Weighted average period to be recognized	1 year 9 months 18 days
Outstanding stock options vested	25,843	15,496	27,811
Shares outstanding	132,144	112,561
Share withheld for payroll tax obligations \| $	$ 1,111	$ 1,124	$ 833
Allocated Share-based Compensation Expense \| $	$ 5,847	4,395	$ 3,893
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Percentage vested per year	33.00%
Fair value vested \| $	$ 3,800	$ 4,100
Number of shares vested	40,792
Restricted Stock Units Settled In Cash [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding	4,938	4,103	6,474
Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Number of shares vested	0	0	0
Performance Stock Units [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of awards actually earned	0.00%
Performance Stock Units [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of awards actually earned	20000.00%
Performance Stock Units [Member] \| Defined Performance Goal Not Met [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense \| $	$ 0
2015 Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan effective date	Jan. 26, 2015
Maximum number of shares authorized	626,968
Number of shares available	316,093
Stock award ratio \| item	1
2015 Long-Term Incentive Plan [Member] \| Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option expire, years	10 years
Vesting period	4 years
Non Employee Directors [Member] \| Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	9 months