Condensed Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Net sales	$ 314.3	$ 306.1	$ 601.7	$ 598.1
Cost of goods sold	222.8	214.6	425.9	417.5
Gross profit	91.5	91.5	175.8	180.6
Selling, general and administrative expenses	55.8	61.6	109.5	125.9
Separation costs	3.9	5.1	31.0	9.4
Equity earnings from joint venture	(19.9)	(16.4)	(38.0)	(30.0)
Operating income	51.7	41.2	73.3	75.3
Interest expense	12.5	11.4	34.4	22.6
Other non-operating expense		0.2		2.7
Other non-operating (income)	(2.1)	(3.4)	(7.3)	(5.4)
Earnings from continuing operations before income taxes	41.3	33.0	46.2	55.4
Income tax expense	24.7	17.9	36.7	34.6
Earnings from continuing operations	16.6	15.1	9.5	20.8
Net earnings (loss) from discontinued operations, net of tax expense of $-, $7.3, $0.1 and $10.7		14.8	(4.5)	12.9
Gain (loss) from disposal of discontinued business, net of tax (benefit) of ($0.1), $-, ($1.9) and ($43.4)	0.3	(0.3)	2.0	42.5
Net earnings (loss) from discontinued operations	0.3	14.5	(2.5)	55.4
Net earnings	16.9	29.6	7.0	76.2
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(13.2)	7.4	(11.8)	(7.9)
Derivative (loss)	(2.1)	(0.6)	(0.5)	(1.1)
Pension and postretirement adjustments	9.2	9.2	17.0	21.1
Total other comprehensive (loss) income	(6.1)	16.0	4.7	12.1
Total comprehensive income	$ 10.8	$ 45.6	$ 11.7	$ 88.3
Earnings per share of common stock, continuing operations:
Basic	$ 0.30	$ 0.27	$ 0.17	$ 0.37
Diluted	0.29	0.27	0.17	0.37
Earnings (loss) per share of common stock, discontinued operations:
Basic	0.01	0.26	(0.04)	0.99
Diluted	0.01	0.26	(0.04)	0.98
Net earnings per share of common stock:
Basic	0.30	0.53	0.13	1.36
Diluted	$ 0.30	$ 0.53	$ 0.13	$ 1.36
Average number of common shares outstanding:
Basic	55.6	55.5	55.6	55.4
Diluted	56.0	55.8	55.9	55.8