Goodwill and Intangible Assets - Preliminary Goodwill (Details) $ in Millions	3 Months Ended
	Mar. 29, 2026 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 595.7
Ending balance	884.1
KGS
Goodwill [Roll Forward]
Beginning balance	470.9
Ending balance	759.3
US
Goodwill [Roll Forward]
Beginning balance	124.8
Ending balance	124.8
Orbit Technologies, Ltd
Goodwill [Roll Forward]
Goodwill, acquired	187.5
Orbit Technologies, Ltd | KGS
Goodwill [Roll Forward]
Goodwill, acquired	187.5
Orbit Technologies, Ltd | US
Goodwill [Roll Forward]
Goodwill, acquired	0.0
Nomad Global Communication Solutions, Incorporated
Goodwill [Roll Forward]
Goodwill, acquired	100.9
Nomad Global Communication Solutions, Incorporated | KGS
Goodwill [Roll Forward]
Goodwill, acquired	100.9
Nomad Global Communication Solutions, Incorporated | US
Goodwill [Roll Forward]
Goodwill, acquired	$ 0.0