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Acquisitions - Intangible Assets Acquired (Details) - USD ($) $ in Millions	Jul. 09, 2026	Oct. 16, 2025	Jan. 28, 2025
Business Combination [Line Items]
Amount		$ 314.2	$ 117.6
Direct Optical Research Company
Business Combination [Line Items]
Amount	$ 13.4
Direct Optical Research Company \| Developed technology
Business Combination [Line Items]
Estimated Useful Life	8 years
Amount	$ 6.8
Direct Optical Research Company \| Customer relationships
Business Combination [Line Items]
Estimated Useful Life	8 years
Amount	$ 6.6
Spirent Communications PLC \| Developed technology
Business Combination [Line Items]
Estimated Useful Life		5 years
Amount		$ 134.8
Spirent Communications PLC \| Customer relationships
Business Combination [Line Items]
Estimated Useful Life		9 years
Amount		$ 162.3
Spirent Communications PLC \| Tradename
Business Combination [Line Items]
Estimated Useful Life		6 years
Amount		$ 7.0
Spirent Communications PLC \| Backlog
Business Combination [Line Items]
Estimated Useful Life		2 years
Amount		$ 10.1
Inertial Labs, LLC \| Developed technology
Business Combination [Line Items]
Amount			$ 102.0
Inertial Labs, LLC \| Developed technology \| Minimum
Business Combination [Line Items]
Estimated Useful Life			4 years
Inertial Labs, LLC \| Developed technology \| Maximum
Business Combination [Line Items]
Estimated Useful Life			7 years
Inertial Labs, LLC \| Customer relationships
Business Combination [Line Items]
Estimated Useful Life			6 years
Amount			$ 9.6
Inertial Labs, LLC \| Tradename
Business Combination [Line Items]
Estimated Useful Life			3 years
Amount			$ 0.8
Inertial Labs, LLC \| Backlog
Business Combination [Line Items]
Estimated Useful Life			2 years
Amount			$ 5.2