Intangible Assets - Narrative (Details)	12 Months Ended
	Oct. 31, 2025 USD ($) reporting_unit	Oct. 31, 2024 USD ($)	Oct. 31, 2023 USD ($)
Goodwill [Line Items]
Number of reporting units | reporting_unit	3
Goodwill impairment	$ 0	$ 0	$ 0
Impairment of intangibles	0	0
CooperSurgical
Goodwill [Line Items]
Goodwill deductible for tax purposes	282,200,000	311,500,000
CooperVision
Goodwill [Line Items]
Goodwill deductible for tax purposes	$ 15,600,000	$ 17,800,000