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 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
Beginning balance at Jan. 03, 2016		$ 36.6	$ 3.5	$ (43.7)	$ (0.6)	$ 25.4	$ 813.5	$ 60.7
Increase (Decrease) in Stockholders' Equity
Issuance of restricted stock and other				5.2	0.0	0.8
Net earnings	$ 101.0						101.0
Dividends							(7.7)
Other comprehensive income, net of tax	21.8							21.8
Ending balance at Oct. 02, 2016	1,016.5	36.6	3.5	(38.5)	(0.6)	26.2	906.8	82.5
Beginning balance at Jul. 03, 2016		36.6	3.5	(41.5)	(0.6)	28.1	828.8	79.2
Increase (Decrease) in Stockholders' Equity
Issuance of restricted stock and other				3.0	0.0	(1.9)
Net earnings	80.9						80.9
Dividends							(2.9)
Other comprehensive income, net of tax	3.3							3.3
Ending balance at Oct. 02, 2016	1,016.5	36.6	3.5	(38.5)	(0.6)	26.2	906.8	82.5
Beginning balance at Jan. 01, 2017	1,012.0	36.6	3.5	(38.4)	(0.6)	28.6	923.6	58.7
Increase (Decrease) in Stockholders' Equity
Issuance of restricted stock and other				3.8	0.0	1.4
Net earnings	53.9						53.9
Dividends							(8.7)
Other comprehensive income, net of tax	64.6							64.6
Ending balance at Oct. 01, 2017	1,127.0	36.6	3.5	(34.6)	(0.6)	30.0	968.8	123.3
Beginning balance at Jul. 02, 2017		36.6	3.5	(37.0)	(0.6)	31.1	948.7	91.1
Increase (Decrease) in Stockholders' Equity
Issuance of restricted stock and other				2.4	0.0	(1.1)
Net earnings	23.0						23.0
Dividends							(2.9)
Other comprehensive income, net of tax	32.2							32.2
Ending balance at Oct. 01, 2017	$ 1,127.0	$ 36.6	$ 3.5	$ (34.6)	$ (0.6)	$ 30.0	$ 968.8	$ 123.3