INCOME TAXES - Schedule of Components of Deferred Income Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025
Deferred income tax assets:
Inventories	$ 8.7	$ 4.4
Accruals and allowances	91.0	64.1
Sales returns	16.1	16.3
Share-based compensation	5.1	4.0
Employee benefits	36.5	46.5
Net operating loss carry forwards and tax credits	442.3	376.3
Capital loss carry forwards	29.9	29.8
Interest expense limitation carry forward	210.2	173.5
Lease liability	21.0	16.1
Principal relocation lease	308.8	347.6
Property, plant and equipment	2.5	42.0
Derivative Instruments	26.6	70.5
Investment in partnerships	13.9	0.0
Other	77.2	63.0
Less: valuation allowances	(287.7)	(274.1)
Net deferred income tax assets	1,002.1	980.0
Deferred income tax liabilities:
Intangible assets	675.6	753.6
Licensing rights	29.9	29.9
Right of use asset	18.5	22.8
Investment in partnerships	0.0	48.3
Other	24.9	31.7
Deferred income tax liabilities	748.9	886.3
Net deferred income tax (liability) asset	$ 253.2	$ 93.7

Deferred Tax Asset, Operating Loss and Tax Credits Carryforwards

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Deferred Tax Assets, Accruals and Allowances

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Deferred Tax Assets, Investment In Partnerships

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Deferred Tax Assets, Operating Lease, Liability

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Deferred Tax Assets, Principal Relocation Lease Liability

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Deferred Tax Liabilities, Investment In Partnerships

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Amount of deferred tax liability attributable to taxable temporary differences.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible interest carryforward.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-6

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible capital loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from derivative instruments.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.

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Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from employee benefits, classified as other.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from estimated returns and sales allowances.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

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Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.

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Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements.

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Amount of deferred tax liability attributable to taxable temporary differences classified as other.

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Amount of deferred tax liability attributable to taxable temporary differences from long-lived assets other than property, plant, and equipment.

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