v3.25.4
Business Segment Information - Schedule of Business Segment Information (Details) - USD ($)
$ in Millions
 3 Months Ended
Jan. 31, 2026
Jan. 31, 2025
Oct. 31, 2025
Segment Reporting Information [Line Items]      
Net sales $ 1,024.1 $ 964.7  
Cost of sales 328.9 304.5  
Selling, general and administrative expense 390.2 387.9  
Research and development expense 44.3 40.7  
Amortization of intangibles 47.9 49.6  
Operating income 212.8 182.0  
Interest expense 22.4 26.0  
Other expense (income), net (1.8) 2.7  
Income before income taxes 192.2 153.3  
Depreciation expense 47.6 41.4  
Capital expenditures 102.2 89.4  
Total assets 12,424.2   $ 12,394.8
Operating Segments | CooperVision Segment      
Segment Reporting Information [Line Items]      
Net sales 695.1 646.1  
Cost of sales 220.8 205.0  
Selling, general and administrative expense 237.6 229.9  
Research and development expense 22.4 22.5  
Amortization of intangibles 4.1 4.8  
Operating income 210.2 183.9  
Depreciation expense 41.1 35.3  
Capital expenditures 94.2 75.6  
Total assets 7,655.7   7,604.4
Operating Segments | CooperSurgical Segment      
Segment Reporting Information [Line Items]      
Net sales 329.0 318.6  
Cost of sales 108.1 99.5  
Selling, general and administrative expense 128.4 135.9  
Research and development expense 21.9 18.2  
Amortization of intangibles 43.8 44.8  
Operating income 26.8 20.2  
Depreciation expense 6.5 6.1  
Capital expenditures 8.0 13.8  
Total assets 4,584.6   4,619.3
Corporate      
Segment Reporting Information [Line Items]      
Net sales 0.0 0.0  
Cost of sales 0.0 0.0  
Selling, general and administrative expense 24.2 22.1  
Research and development expense 0.0 0.0  
Amortization of intangibles 0.0 0.0  
Operating income (24.2) (22.1)  
Depreciation expense 0.0 0.0  
Capital expenditures 0.0 $ 0.0  
Total assets $ 183.9   $ 171.1