Transition Period Financial Information (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended								12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Nov. 30, 2015	Aug. 31, 2015	May 31, 2015	Feb. 28, 2015	Dec. 31, 2016	Nov. 30, 2015	Nov. 30, 2014
Transition Period Financial Information [Abstract]
Net sales	$ 96.3	$ 78.2	$ 532.2	$ 463.8	$ 408.4	$ 356.9	$ 486.5	$ 441.0	$ 457.8	$ 323.0	$ 1,761.3	$ 1,708.3	$ 1,602.2
Cost of sales (exclusive of items shown separately on Statement of Operations)	75.4	71.9	455.8	405.4	356.5	309.7	428.3	373.1	372.7	285.4	1,527.4	1,459.5	1,406.2
Operating (loss) income	12.8	(4.7)									61.2	33.3	19.6
Income (loss) before income taxes	9.0	(9.6)	34.3	(25.2)	11.5	8.7	15.5	(60.2)	37.2	(9.3)	29.3	(16.8)	(33.0)
Income tax provision	2.0	(3.4)									11.2	0.3	16.3
Net income (loss)	$ 7.0	$ (6.2)	$ 18.1	$ (11.1)	$ 5.9	$ 5.1	$ 7.7	$ (37.9)	$ 17.3	$ (3.3)	$ 18.0	$ (16.2)	$ (50.0)
Basic (loss) income per share from continuing operations (in USD per share)	$ 0.11	$ (0.11)	$ 0.26	$ (0.17)	$ 0.09	$ 0.08	$ 0.12	$ (0.62)	$ 0.28	$ (0.06)	$ 0.27	$ (0.28)	$ (0.85)
Basic net (loss) income per share (in USD per share)	0.11	(0.11)	0.26	(0.17)	0.09	0.08	0.12	(0.61)	0.28	(0.06)	0.27	(0.27)	(0.86)
Diluted (loss) income per share from continuing operations (in USD per share)	0.10	(0.11)	0.25	(0.17)	0.09	0.08	0.12	(0.62)	0.25	(0.06)	0.27	(0.28)	(0.85)
Diluted net (loss) income per share (in USD per share)	$ 0.10	$ (0.11)	$ 0.25	$ (0.17)	$ 0.09	$ 0.08	$ 0.12	$ (0.61)	$ 0.25	$ (0.06)	$ 0.27	$ (0.27)	$ (0.86)