James Hardie Industries plc Annual and transition report of foreign private issuers [Sections 13 or 15(d)]

Annual and transition report of foreign private issuers [Sections 13 or 15(d)]

Goodwill and Other Intangible Assets - Narrative (Details)

Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization	$ 4.4	$ 4.3	$ 3.8

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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+ Details