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Related Party Transactions (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021	Apr. 30, 2004
Vice Chair and Director, Michael Burns
Related Party Transaction [Line Items]
Redeemable noncontrolling interest, ownership percentage held by noncontrolling interest holders				65.45%
Director, Hardwick Simmons
Related Party Transaction [Line Items]
Redeemable noncontrolling interest, ownership percentage held by noncontrolling interest holders				24.24%
Ignite
Related Party Transaction [Line Items]
Related party expenses incurred	$ 0.4
Maximum | Director
Related Party Transaction [Line Items]
Related party expenses incurred	$ 0.0	$ 0.0	$ 0.1

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- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

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