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Goodwill and Other Intangible Assets - Rollforward of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Goodwill [Roll Forward]
Balance, beginning	$ 199.5
Balance, ending	194.9	$ 199.5
Europe Building Products
Goodwill [Roll Forward]
Balance, beginning	199.5	209.3
Foreign exchange impact	$ (4.6)	(9.8)
Balance, ending		$ 199.5

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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+ Details

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X

- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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X

- Definition

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

+ References

No definition available.

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- Details

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