Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jan. 02, 2022	Jan. 03, 2021
Allowance for trade accounts receivable	$ 12.6	$ 13.3
Class A common stock
Common stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	100,000,000	100,000,000.0
Common stock, shares issued (in shares)	36,700,000	36,700,000
Treasury stock, Class A shares (in shares)	700,000	800,000
Class B common stock
Common stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	10,000,000	10,000,000.0
Common stock, shares issued (in shares)	3,400,000	3,400,000