Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Net sales	$ 328.1	$ 309.2	$ 638.5	$ 594.6
Cost of sales	215.9	205.4	422.4	397.0
Manufacturing margins	112.2	103.8	216.1	197.6
Operating expenses:
Selling, general and administrative expenses	65.2	64.2	131.3	128.5
Amortization expense	6.7	7.1	13.5	14.1
Loss (gain) on currency translation	2.4	(2.8)	2.6	(4.1)
Other expense, net	2.7	6.4	10.4	10.2
Total operating expenses	77.0	74.9	157.8	148.7
Operating earnings	35.2	28.9	58.3	48.9
Interest expense, net	11.3	10.4	22.0	22.8
Loss on debt extinguishment	0.4	0.0	0.7	25.2
Other non-operating expenses	0.2	0.3	0.5	0.6
Earnings before income taxes	23.3	18.2	35.1	0.3
Income tax expense	8.4	8.1	14.3	14.8
Net earnings (loss)	$ 14.9	$ 10.1	$ 20.8	$ (14.5)
Earnings (loss) per share:
Basic (in dollars per share)	$ 0.21	$ 0.15	$ 0.30	$ (0.21)
Diluted (in dollars per share)	$ 0.21	$ 0.14	$ 0.29	$ (0.21)