Collaborative Arrangement (Details) - USD ($) $ in Millions	12 Months Ended			17 Months Ended
	Dec. 28, 2025	Dec. 29, 2024	Dec. 31, 2023	Dec. 28, 2025
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Total revenues	$ 1,346.8	$ 1,136.3	$ 1,037.1
Total costs	1,038.9	$ 849.1	$ 768.5
Party to collaborative arrangement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Total revenues	12.9			$ 31.5
Total costs	$ 13.3			$ 31.9