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 Dec. 28, 2014		$ 36.6	$ 3.5	$ (49.2)	$ (0.6)	$ 24.9	$ 767.4	$ 51.1
Increase (Decrease) in Stockholders' Equity
Issuance of restricted stock and other				2.9	0.0	1.8
Net earnings	$ 19.6						19.6
Dividends							(5.7)
Other comprehensive income, net of tax	7.3							7.3
Ending balance at Sep. 27, 2015	859.6	36.6	3.5	(46.3)	(0.6)	26.7	781.3	58.4
Beginning balance at Jun. 28, 2015		36.6	3.5	(48.4)	(0.6)	27.5	774.1	51.8
Increase (Decrease) in Stockholders' Equity
Issuance of restricted stock and other				2.1	0.0	(0.8)
Net earnings	9.1						9.1
Dividends							(1.9)
Other comprehensive income, net of tax	6.6							6.6
Ending balance at Sep. 27, 2015	859.6	36.6	3.5	(46.3)	(0.6)	26.7	781.3	58.4
Beginning balance at Jan. 03, 2016	895.4	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