Performance Shares, Attainment Level Certification Period

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number Of Vesting Installments

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- Definition

Share based compensation arrangement by share based payment award options expiration period.

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- Definition

Share based compensation arrangement by share based payment award stock award and option vesting rate per year.

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

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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.

+ References

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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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

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

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

Number of shares issued under share-based payment arrangement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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Stockholders' Equity - Share-Based Payments (Details)				12 Months Ended
Stockholders' Equity - Share-Based Payments (Details)	Mar. 31, 2020 shares	Mar. 31, 2019 shares	Mar. 31, 2018 shares	Dec. 31, 2020 USD ($) installment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	May 19, 2020 shares	Oct. 25, 2001 shares
Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance (in shares) \| shares							3,000,000
Performance shares, attainment level certification period				30 days
Omnibus Plan \| Board of Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of vesting installments \| installment				3
The 1999 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate number of common stock shares authorized for issuance (in shares) \| shares								4,398,001
Minimum \| Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock vesting period				1 year
Restricted Stock Awards \| Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock vesting period				3 years
Pretax of total unrecognized compensation cost related to non-vested restricted stock awards				$ 5,600,000
Pretax total unrecognized compensation cost related to share options- period				1 year 8 months 19 days
Fair value of shares vested				$ 2,700,000	$ 2,600,000	$ 2,500,000
Performance Stock Awards \| Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in shares) \| shares	286,415	192,939	238,328
Pretax of total unrecognized compensation cost related to non-vested restricted stock awards				$ 1,100,000
Pretax total unrecognized compensation cost related to share options- period				1 year 6 months 25 days
Fair value of shares vested				$ 0	$ 0	$ 500,000
Stock Appreciation Rights \| Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock vesting period				4 years
Stock vesting percentage per year				25.00%
Stock expiration period				7 years