Consolidated Condensed Statement Of Stockholders' Equity Consolidated Condensed Statement Of Stockholders' Equity (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Statement of Stockholders' Equity [Abstract]
Debt conversion, converted instrument, tax benefit	$ 3.0	$ 3.5	$ 3.0	$ 8.2