Quarterly Financial Information (unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Oct. 02, 2016	Jul. 03, 2016	Apr. 03, 2016	Dec. 31, 2015	Sep. 27, 2015	Jun. 28, 2015	Mar. 29, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information (unaudited)
Net Sales	$ 342.0	$ 341.1	$ 371.1	$ 344.2	$ 358.3	$ 366.3	$ 386.9	$ 356.2	$ 1,398.4	$ 1,467.7	$ 1,513.7
Gross profit	137.7	142.0	150.7	135.2	134.6	142.2	145.8	130.5	565.6	553.1	541.8
Net income	$ 17.5	$ 21.9	$ 28.6	$ 16.2	$ (118.2)	$ (25.7)	$ 19.3	$ 11.6	$ 84.2	$ (112.9)	$ 50.3
BASIC EPS
Net income (in dollars per share)	$ 0.51	$ 0.63	$ 0.83	$ 0.47	$ (3.41)	$ (0.73)	$ 0.55	$ 0.33	$ 2.45	$ (3.24)	$ 1.42
DILUTED EPS
Net income (in dollars per share)	0.51	0.63	0.83	0.47	(3.41)	(0.73)	0.55	0.33	2.44	(3.24)	1.42
Dividends declared per common share (in dollars per share)	$ 0.18	$ 0.18	$ 0.18	$ 0.17	$ 0.17	$ 0.17	$ 0.17	$ 0.15	$ 0.71	$ 0.66	$ 0.58