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Earnings Per Share and Stock Plans 2 of 2 (Details) - $ / shares	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Unvested Opening Balance	66,720	153,386	126,570
Granted	83,164	38,585	34,695
Forfeited	(3,451)	(125,251)	(7,879)
Unvested Closing Balance	123,232	66,720	153,386
Unvested Opening Balance	$ 32.36	$ 23.11	$ 19.42
Granted	25.97	37.67	36.43
Vested	25.28
Unvested Closing Balance	$ 29.58	32.36	23.11
Stock Granted, Value, Share-based Compensation, Forfeited	(23,201)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 25.28	$ 22.67	$ 22.40
Long Term Incentive Plans
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Unvested Opening Balance	212,721	230,197	336,789
Granted	195,181	151,351	116,942
Forfeited	(12,963)	(62,035)	(11,602)
Unvested Closing Balance	269,789	212,721	230,197
Unvested Opening Balance	$ 35.20	$ 30.22	$ 22.62
Granted	29.16	38.40	37.90
Vested	31.85	31.90	22.66
Unvested Closing Balance	$ 32.41	$ 35.20	$ 30.22
Stock Granted, Value, Share-based Compensation, Forfeited	125,150	106,792	211,932
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value	$ 34.74	$ 31.61	$ 25.18

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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-Topic 718
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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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).

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The weighted average fair value at grant date for nonvested equity-based awards issued 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).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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