Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Jul. 03, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 30.6	$ 22.8
Common stock, par value (in USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000.0	500,000,000.0
Common stock, shares issued (in shares)	159,400,000	158,700,000
Common stock, shares outstanding (in shares)	159,300,000	158,700,000
Preferred shares authorized (in shares)	15,000,000.0	15,000,000.0
Preferred shares issued (in shares)	0	0
Preferred shares outstanding (in shares)	0	0

The valuation allowance as of the balance sheet date to reduce the gross amount of receivables to estimated net realizable value, which would be presented in parentheses on the face of the balance sheet.

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