Segments - Revenue by Product (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Total net revenues	$ 1,280.2	$ 1,148.9
Wide Area Networking
Segment Reporting Information [Line Items]
Total net revenues	407.9	350.4
Data Center
Segment Reporting Information [Line Items]
Total net revenues	177.2	163.1
Campus and Branch
Segment Reporting Information [Line Items]
Total net revenues	294.2	240.5
Hardware Maintenance and Professional Services
Segment Reporting Information [Line Items]
Total net revenues	$ 400.9	$ 394.9