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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Stock-Based Compensation (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 5,000	$ 4,800
Expected stock based compensation for remaining fiscal year	$ 1,100
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years
Performance Share Awards (PSAs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Minimum [Member] \| Performance Share Awards (PSAs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of award grant paid	0.00%
Maximum [Member] \| Performance Share Awards (PSAs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of award grant paid	150.00%
Outside Directors [Member] \| Restricted Stock Units (RSUs) [Member] \| Pre FY2020 Grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Outside Directors [Member] \| Restricted Stock Units (RSUs) [Member] \| FY2020 Grants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year