CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Sep. 26, 2020	Dec. 28, 2019
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 15.6	$ 9.7
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000.0	100,000,000.0
Common stock, shares issued (in shares)	40,600,000	40,800,000
Common stock, shares outstanding (in shares)	40,600,000	40,800,000