v3.26.1
Business Segment Information - Schedule of Business Segment Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2026
Apr. 30, 2025
Oct. 31, 2025
Segment Reporting Information [Line Items]          
Net sales $ 1,081.5 $ 1,002.3 $ 2,105.6 $ 1,967.0  
Cost of sales 346.1 323.2 675.0 627.7  
Selling, general and administrative expense 676.2 399.0 1,066.4 786.9  
Research and development expense 42.5 45.5 86.8 86.2  
Amortization of intangibles 47.7 49.8 95.6 99.4  
Operating income (loss) (31.0) 184.8 181.8 366.8  
Interest expense 20.9 24.2 43.3 50.2  
Other (income) expense, net (3.5) 16.1 (5.3) 18.8  
Income (loss) before income taxes (48.4) 144.5 143.8 297.8  
Depreciation expense 47.8 43.0 95.4 84.4  
Capital expenditures 86.4 78.1 188.6 167.5  
Total assets 12,482.3   12,482.3   $ 12,394.8
Operating Segments | CooperVision          
Segment Reporting Information [Line Items]          
Net sales 723.5 669.6 1,418.6 1,315.7  
Cost of sales 229.4 215.6 450.2 420.6  
Selling, general and administrative expense 252.2 236.9 489.8 466.8  
Research and development expense 22.1 25.6 44.5 48.1  
Amortization of intangibles 4.2 5.1 8.3 9.9  
Operating income (loss) 215.6 186.4 425.8 370.3  
Depreciation expense 41.3 37.1 82.4 72.4  
Capital expenditures 76.6 69.4 170.8 145.0  
Total assets 7,626.0   7,626.0   7,604.4
Operating Segments | CooperSurgical          
Segment Reporting Information [Line Items]          
Net sales 358.0 332.7 687.0 651.3  
Cost of sales 116.7 107.6 224.8 207.1  
Selling, general and administrative expense 402.4 136.8 530.8 272.7  
Research and development expense 20.4 19.9 42.3 38.1  
Amortization of intangibles 43.5 44.7 87.3 89.5  
Operating income (loss) (225.0) 23.7 (198.2) 43.9  
Depreciation expense 6.5 5.9 13.0 12.0  
Capital expenditures 9.8 8.7 17.8 22.5  
Total assets 4,616.0   4,616.0   4,619.3
Corporate          
Segment Reporting Information [Line Items]          
Net sales 0.0 0.0 0.0 0.0  
Cost of sales 0.0 0.0 0.0  
Selling, general and administrative expense 21.6 25.3 45.8 47.4  
Research and development expense 0.0 0.0 0.0  
Amortization of intangibles 0.0 0.0 0.0  
Operating income (loss) (21.6) (25.3) (45.8) (47.4)  
Depreciation expense 0.0 0.0 0.0 0.0  
Capital expenditures 0.0 $ 0.0 0.0 $ 0.0  
Total assets $ 240.3   $ 240.3   $ 171.1