Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Capital Stock Capital Stock, Class A common stock	Capital Stock Capital Stock, Class B 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)
Beginning balance at Jan. 02, 2022		$ 36.7	$ 3.4	$ (14.5)	$ (0.6)	$ 23.9	$ 1,315.0	$ (27.7)
Increase (Decrease) in Stockholders' Equity
Conversions from Class B		0.0	0.0
Net issuance of stock awards and other				2.1	0.0	(1.1)
Purchase of treasury stock				0.0
Net earnings (loss)	$ (47.6)						(47.6)
Dividends							(1.9)
Share retirement		(1.6)					(25.6)
Other comprehensive income (loss), net of tax	13.0							13.0
Ending balance at Apr. 03, 2022	1,273.5	35.1	3.4	(12.4)	(0.6)	22.8	1,239.9	(14.7)
Beginning balance at Jan. 01, 2023	1,254.2	35.1	3.4	(19.5)	(0.6)	28.0	1,216.3	(8.5)
Increase (Decrease) in Stockholders' Equity
Conversions from Class B		0.1	(0.1)
Net issuance of stock awards and other				3.1	0.0	(1.6)
Purchase of treasury stock				(18.3)
Net earnings (loss)	10.9						10.9
Dividends							(2.8)
Share retirement		0.0					0.0
Other comprehensive income (loss), net of tax	2.3							2.3
Ending balance at Apr. 02, 2023	$ 1,247.8	$ 35.2	$ 3.3	$ (34.7)	$ (0.6)	$ 26.4	$ 1,224.4	$ (6.2)