The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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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

Expected term of 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
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

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- Definition

Weighted average grant-date fair value of non-vested options outstanding.

+ References

No definition available.

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Incentive Compensation Plans (Summary of Valuation Assumptions) (Details) - $ / shares	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2021	Mar. 31, 2020
Time-Vesting Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value	$ 9.78	$ 9.78	$ 9.78
Expected volatility	52.50%
Risk-free interest rate	2.20%
Expected term (years)	4 years 6 months
Exit-Vesting Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value	$ 5.90	$ 5.90	$ 5.90
Expected volatility	52.90%
Risk-free interest rate	2.20%
Expected term (years)	5 years 1 month 6 days
Replacement Exit-Vesting Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value	$ 12.80
Expected volatility	62.20%
Risk-free interest rate	2.30%
Expected term (years)	1 year 10 months 24 days