Deferred Compensation Arrangement with Individual, Stock Allocation Percentage

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- Definition

Rate at which annual cash bonus payments are deferred by the entity.

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- Definition

Number of non-qualified stock options shares to purchase under the plan.

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- Definition

Discount rate of common stock on closing price.

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- Definition

Number of restricted units.

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No definition available.

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- Definition

The maximum number of shares authorized for issuance under the deferred compensation arrangement as of the balance sheet date.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

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

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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.

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- Definition

Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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-Name Accounting Standards Codification
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-Paragraph 1
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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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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

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- Definition

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

+ References

No definition available.

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- Definition

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

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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.

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- Definition

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

+ References

No definition available.

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- Definition

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

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- Definition

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

+ References

No definition available.

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- Definition

Value, before forfeiture, of shares granted under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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- Definition

The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

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Capital Stock and Stock-Based Awards (Details) - Narrative - USD ($) $ / shares in Units, $ in Thousands					12 Months Ended			49 Months Ended
	Jul. 22, 2020	Sep. 18, 2019	Sep. 26, 2018	Sep. 24, 2014	May 31, 2021	May 31, 2020	May 31, 2019	Sep. 30, 2011	Sep. 30, 2017	Sep. 30, 2007
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock issued (in shares)					0	0
Options outstanding ( in shares)					4,987,262	3,002,981
Granted (in dollars per share)					$ 21.07
Stock option compensation cost not yet recognized					$ 4,800
Future period of stock option expense recognition (in years)					2 years 9 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross					2,385,096
2017 Outside Director's Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value of stock options and restricted stock units granted	$ 90
Directors Plan 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in dollars per share)		$ 20.48
Restricted stock outstanding (in shares)		18,452
Shares reserved for issuance (in shares)									400,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross		59,038
Plan 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in shares available for grant (in shares)			2,540,000	2,475,000
Total number of shares available for grant (in shares)			7,115,000
Options outstanding ( in shares)					4,788,742
Granted (in dollars per share)					$ 21.08
Common stock remaining authorized under employee stock purchase plan (in shares)					661,092
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross					2,326,058
2007 Directors’ Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding ( in shares)					77,394
Non-qualified stock options outstanding (in shares)										3,000
Restricted stock outstanding (in shares)								1,200
Restricted Stock \| 2017 Outside Director's Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock allocation of awards as a percent	60.00%
Share-based Payment Arrangement, Option \| 2017 Outside Director's Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock allocation of awards as a percent	40.00%
Directors Plan 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding ( in shares)					121,126
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option compensation cost not yet recognized					$ 1,800
Future period of stock option expense recognition (in years)					1 year 7 months 6 days
Common stock issued from conversion of RSUs (in shares)					38,555
Management Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock remaining authorized under employee stock purchase plan (in shares)					305,952
Stock option compensation cost not yet recognized					$ 100
Deferred rate for annual cash bonus payment					100.00%
Quarterly basis discount rate of common stock on closing price					25.00%
Fair value of shares vested						$ 2,800	$ 2,700
Stock Units And Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of shares vested					$ 3,200
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock remaining authorized under employee stock purchase plan (in shares)					289,142
Quarterly basis discount rate of common stock on closing price					15.00%