Income Taxes - Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 26, 2021	Dec. 27, 2020	Dec. 29, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 67.8	$ 36.7	$ 46.1
Gross increases in prior period tax positions	0.6	12.7	2.0
Gross increase from acquisition	0.0	13.7	0.0
Gross decreases in prior period tax positions	(12.0)	0.0	0.0
Gross increases in current period tax positions	4.6	11.7	4.2
Decreases related to settlements with tax authorities	(2.7)	0.0	(12.0)
Decreases from the expiration of statute of limitations	(7.7)	(7.0)	(3.6)
Balance at end of year	$ 50.6	$ 67.8	$ 36.7