Acquisitions - Narrative (Details) - USD ($) $ in Millions						1 Months Ended	3 Months Ended	9 Months Ended
	May 23, 2022	Mar. 09, 2022	Dec. 30, 2021	Dec. 27, 2021	Dec. 10, 2021	Dec. 30, 2021	Sep. 25, 2022	Sep. 25, 2022
CTT Inc.
Business Acquisition [Line Items]
Cash paid			$ 15.2		$ 6.3	$ 22.0
Cosmic Advanced Engineering Solutions, Inc.
Business Acquisition [Line Items]
Cash paid	$ 74.3			$ 39.0
Payments to acquire business, subject to adjustments				37.5
Payments to acquire businesses, amount not included holdback paid at later				0.5
Current liabilities	2.5			6.7
Deferred tax liabilities				2.9
Revenue							$ 15.6	$ 43.3
Operating income							0.0	0.2
Aggregate purchase price	79.3			38.0
Common stock consideration	5.0
Deferred tax assets, net	0.2
Cosmic Advanced Engineering Solutions, Inc. | Trade names
Business Acquisition [Line Items]
Intangible assets acquired	$ 0.7			$ 1.5
Useful life	5 years			5 years
Cosmic Advanced Engineering Solutions, Inc. | Contracts and backlog
Business Acquisition [Line Items]
Intangible assets acquired	$ 6.0			$ 3.0
Useful life	2 years			2 years
Cosmic Advanced Engineering Solutions, Inc. | Customer relationships
Business Acquisition [Line Items]
Intangible assets acquired	$ 1.5			$ 2.5
Useful life	10 years			10 years
Cosmic Advanced Engineering Solutions, Inc. | Developed technology
Business Acquisition [Line Items]
Intangible assets acquired	$ 5.3			$ 3.0
Useful life	7 years			10 years
Cosmic Advanced Engineering Solutions, Inc. | In-process research and development
Business Acquisition [Line Items]
Intangible assets acquired	$ 1.5
Southern Research Engineering Division
Business Acquisition [Line Items]
Cash paid		$ 75.0
Revenue							12.5	16.6
Operating income							$ 0.2	$ 0.7
Aggregate purchase price		80.0
Common stock consideration		$ 5.0