Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 30, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net Sales	$ 834.2	$ 802.2	$ 782.0	$ 745.2	$ 748.4	$ 725.3	$ 732.5	$ 695.6	$ 3,163.6	$ 2,901.8	$ 2,603.8
Costs and expenses
Cost of sales	505.1	487.7	463.6	463.9	459.6	446.2	447.0	438.2	1,920.3	1,791.0	1,624.0
Selling, general and administrative expenses	195.3	185.8	186.5	184.0	177.6	173.6	174.0	169.0	751.6	694.2	658.1
Total costs and expenses	700.4	673.5	650.1	647.9	637.2	619.8	621.0	607.2	2,671.9	2,485.2	2,282.1
Operating income	133.8	128.7	131.9	97.3	111.2	105.5	111.5	88.4	491.7	416.6	321.7
Interest and debt expense, net	(4.7)	(5.5)	(5.4)	(5.4)	(5.7)	(6.0)	(6.7)	(7.1)	(21.0)	(25.5)	(33.1)
Non-service retirement benefit income	1.9	1.9	2.0	2.2	3.4	3.4	3.3	3.4	8.0	13.5	13.9
Other expense, net	(1.5)	(1.7)	(0.6)	(1.2)	(1.8)	(2.7)	(3.7)	(2.5)	(5.0)	(10.7)	(15.5)
Income before income taxes	129.5	123.4	127.9	92.9	107.1	100.2	104.4	82.2	473.7	393.9	287.0
Provision for income taxes	13.8	16.7	23.3	17.6	16.0	9.9	18.5	15.7	71.4	60.1	59.8
Net income	$ 115.7	$ 106.7	$ 104.6	$ 75.3	$ 91.1	$ 90.3	$ 85.9	$ 66.5	$ 402.3	$ 333.8	$ 227.2
Earnings Per Share, Basic [Abstract]
Basic earnings per common share (in USD per share)	$ 3.17	$ 2.93	$ 2.89	$ 2.09	$ 2.53	$ 2.52	$ 2.40	$ 1.87	$ 11.08	$ 9.32	$ 6.45
Weighted average common shares outstanding (in shares)									36.3	35.8	35.2
Earnings Per Share, Diluted [Abstract]
Diluted earnings per common share (in USD per share)	$ 3.06	$ 2.84	$ 2.80	$ 2.02	$ 2.45	$ 2.43	$ 2.32	$ 1.81	$ 10.73	$ 9.01	$ 6.26
Weighted average diluted common shares outstanding (in shares)									37.5	37.0	36.3