Finite-lived Intangible Assets, Accumulated Amortization [Abstract]

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Finite-Lived Intangible Assets, Accumulated Amortization, Translation Adjustments Gain (Loss)

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Finite-Lived Intangible Assets, Reclassifications

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Impairment Of Intangible Asset Finite Lived Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag

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Indefinite-Lived Intangible Assets, Reclassifications

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Intangible Assets Acquired

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Intangible Assets [Roll Forward]

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Intangible Assets, Translation Adjustments Gain (Loss)

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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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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of foreign currency translation gain (loss) which increases (decreases) assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Amount before accumulated amortization of intangible assets, excluding goodwill.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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Intangible Assets (Reconciliation of Activity) (Details) - USD ($) $ in Thousands			12 Months Ended
	Oct. 31, 2025	Feb. 28, 2025	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Indefinite- Lived Tradenames
Indefinite-lived intangibles, beginning			$ 2,136,986
Indefinite lived intangibles, tradename impairment		$ (6,600)
Indefinite-lived intangibles, ending				$ 2,136,986
Accumulated Amortization
Finite-lived intangibles, accumulated amortization, beginning			276,136	257,837
Finite-lived intangibles, accumulated amortization, additions			17,919	18,263
Finite-lived intangibles, accumulated amortization, effects of foreign currency exchange rates			145	36
Finite-lived intangibles, accumulated amortization, ending			294,200	276,136	$ 257,837
Gross Carrying Amounts
Intangible assets, gross, beginning			2,571,486	2,578,420
Additions			13,865	8,250
Reclassifications				0
Tradename impairment				(12,466)
Effects of foreign currency exchange rates			8,454	(2,718)
Intangible assets, gross, ending			2,593,805	2,571,486	$ 2,578,420
Indefinite-lived intangible assets				2,136,986
Finite-lived intangible assets			155,930	158,364
Intangible assets, net			2,299,605	2,295,350
Impairment of intangible asset finite lived statement of income or comprehensive income extensible enumeration not disclosed flag					Consolidated Statements of Income (Loss) and Comprehensive Income (Loss)
Feminax
Gross Carrying Amounts
Additions	$ 13,900
North American OTC Healthcare
Indefinite- Lived Tradenames
Indefinite-lived intangibles, beginning			2,068,752
Indefinite-lived intangibles, ending				2,068,752
Gross Carrying Amounts
Indefinite-lived intangible assets				2,068,752
Finite-lived intangible assets				141,234
Intangible assets, net			2,207,655	2,209,986
International OTC Healthcare
Indefinite- Lived Tradenames
Indefinite-lived intangibles, beginning			68,234
Indefinite-lived intangibles, ending				68,234
Gross Carrying Amounts
Indefinite-lived intangible assets				68,234
Finite-lived intangible assets				17,130
Intangible assets, net			91,950	85,364
Finite-Lived Tradenames and Customer Relationships
Gross Carrying Amounts
Finite-lived intangibles, gross, beginning			434,500	411,258
Finite-lived intangibles, additions			13,865	1,400
Finite-lived intangibles, reclassifications				28,982
Finite-lived intangibles, tradename impairment				(5,914)
Finite-lived intangibles, effects of foreign currency exchange rates			1,765	(1,226)
Finite-lived intangibles, gross, ending			450,130	434,500	$ 411,258
Accumulated Amortization
Finite-lived intangibles, accumulated amortization, beginning			276,136	257,837
Finite-lived intangibles, accumulated amortization, additions			17,919	18,263
Finite-lived intangibles, accumulated amortization, effects of foreign currency exchange rates			145	36
Finite-lived intangibles, accumulated amortization, ending			294,200	276,136	257,837
Gross Carrying Amounts
Finite-lived intangible assets			155,930
Finite-Lived Tradenames and Customer Relationships \| North American OTC Healthcare
Gross Carrying Amounts
Finite-lived intangible assets			138,903
Finite-Lived Tradenames and Customer Relationships \| International OTC Healthcare
Gross Carrying Amounts
Finite-lived intangible assets			17,027
Indefinite- Lived Tradenames
Indefinite- Lived Tradenames
Indefinite-lived intangibles, beginning			2,136,986	2,167,162
Indefinite lived intangibles, additions			0	6,850
Indefinite lived intangibles, reclassifications				(28,982)
Indefinite lived intangibles, tradename impairment				(6,552)
Indefinite lived intangibles, effects of foreign currency exchange rates			6,689	(1,492)
Indefinite-lived intangibles, ending			2,143,675	2,136,986	2,167,162
Gross Carrying Amounts
Indefinite-lived intangible assets			2,143,675	$ 2,136,986	$ 2,167,162
Indefinite- Lived Tradenames \| North American OTC Healthcare
Indefinite- Lived Tradenames
Indefinite-lived intangibles, ending			2,068,752
Gross Carrying Amounts
Indefinite-lived intangible assets			2,068,752
Indefinite- Lived Tradenames \| International OTC Healthcare
Indefinite- Lived Tradenames
Indefinite-lived intangibles, ending			74,923
Gross Carrying Amounts
Indefinite-lived intangible assets			$ 74,923