Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock Capital Stock, Class A common stock	Common Stock Capital Stock, Class B common stock	Treasury Stock Capital Stock, Class A common stock	Treasury Stock Treasury Stock, Class A common stock	Treasury Stock Treasury Stock, Class B common stock	Paid-in Capital	Earnings Invested in the Business	Accumulated Other Comprehensive Income (Loss)
Stockholders' Equity Attributable to Parent, Beginning Balance at Jan. 03, 2021		$ 36.7	$ 3.4		$ (16.5)	$ (0.6)	$ 21.3	$ 1,162.9	$ (4.2)
Increase (Decrease) in Stockholders' Equity
Net issuance of stock awards					1.4	0.0	(0.7)
Net earnings (loss)	$ 25.6							25.6
Dividends								0.0
Other comprehensive income (loss), net of tax	(13.6)								(13.6)
Share retirement				$ 0.0				0.0
Stockholders' Equity Attributable to Parent, Ending Balance at Apr. 04, 2021	1,215.7	36.7	3.4		(15.1)	(0.6)	20.6	1,188.5	(17.8)
Increase (Decrease) in Stockholders' Equity
Earnings invested in the business	1,315.0
Stockholders' Equity Attributable to Parent, Beginning Balance at Jan. 02, 2022	1,336.2	36.7	3.4		(14.5)	(0.6)	23.9	1,315.0	(27.7)
Increase (Decrease) in Stockholders' Equity
Net issuance of stock awards					2.1	0.0	(1.1)
Net earnings (loss)	(47.6)							(47.6)
Dividends								(1.9)
Other comprehensive income (loss), net of tax	13.0								13.0
Share retirement		(1.6)						(25.6)
Stockholders' Equity Attributable to Parent, Ending Balance at Apr. 03, 2022	1,273.5	$ 35.1	$ 3.4		$ (12.4)	$ (0.6)	$ 22.8	$ 1,239.9	$ (14.7)
Increase (Decrease) in Stockholders' Equity
Earnings invested in the business	$ 1,239.9