Goodwill and Purchased Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Oct. 01, 2023
Acquired Finite Lived Intangible Assets [Line Items]
Goodwill	$ 1,370.7	$ 1,370.7	$ 1,416.4
Goodwill impairment charge		38.7
Intangible asset impairments	51.6	51.6
Purchased intangible assets, net	783.6	783.6	830.2
Amortization of purchased intangible assets	15.7	31.3
Defense
Acquired Finite Lived Intangible Assets [Line Items]
Goodwill	5.7	5.7	$ 44.4
Goodwill impairment charge		38.7
Defense | Pratt Miller [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Reporting unit, percentage of fair value in excess of carrying amount			10.00%
Goodwill	$ 5.7	$ 5.7
Weighted-average cost of capital (as a percent)	13.00%	13.00%		14.00%
Terminal growth rate (as a percent)	3.00%	3.00%		3.00%
Goodwill impairment charge	$ 38.7	$ 38.7
Purchased intangible assets, net	19.2	19.2
Defense | Trade Names | Pratt Miller [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Intangible asset impairments	8.8	8.8
Defense | Customer Relationships | Pratt Miller [Member]
Acquired Finite Lived Intangible Assets [Line Items]
Intangible asset impairments	4.1	4.1
Cost of Sales
Acquired Finite Lived Intangible Assets [Line Items]
Amortization of purchased intangible assets	$ 2.1	$ 4.2