Guarantor Financial Information - Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Condensed Income Statements Captions [Line Items]
Total net sales	$ 229.6	$ 255.2
Services cost of sales (exclusive of depreciation and amortization)	75.4	85.9
Products cost of sales (exclusive of depreciation and amortization)	78.5	72.7
Total cost of sales	153.9	158.6
Selling, general and administrative expenses (exclusive of depreciation and amortization)	54.9	66.1
Restructuring, impairment and other charges-net	2.1	0.7
Depreciation and amortization	12.1	10.4
Income from operations	6.6	19.4
Interest expense (income)-net	8.9	9.0
Intercompany interest (income) expense - net	0.0	0.0
Investment and other income-net	(0.6)	(0.8)
(Loss) earnings before income taxes and equity in net income of subsidiaries	(1.7)	11.2
Income tax (benefit) expense	(0.3)	3.5
(Loss) earnings before equity in net income of subsidiaries	(1.4)	7.7
Equity in net income of subsidiaries	0.0	0.0
Net (loss) earnings	(1.4)	7.7
Comprehensive (loss) income	1.2	8.9
Eliminations
Condensed Income Statements Captions [Line Items]
Total net sales	(2.6)	(2.1)
Services cost of sales (exclusive of depreciation and amortization)	(1.3)	(1.2)
Products cost of sales (exclusive of depreciation and amortization)	(1.3)	(0.9)
Total cost of sales	(2.6)	(2.1)
Selling, general and administrative expenses (exclusive of depreciation and amortization)	0.0	0.0
Restructuring, impairment and other charges-net	0.0	0.0
Depreciation and amortization	0.0	0.0
Income from operations	0.0	0.0
Interest expense (income)-net	0.0	0.0
Intercompany interest (income) expense - net	0.0	0.0
Investment and other income-net	0.0	0.0
(Loss) earnings before income taxes and equity in net income of subsidiaries	0.0	0.0
Income tax (benefit) expense	0.0	0.0
(Loss) earnings before equity in net income of subsidiaries	0.0	0.0
Equity in net income of subsidiaries	1.1	(11.2)
Net (loss) earnings	1.1	(11.2)
Comprehensive (loss) income	(3.6)	(13.2)
Services Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales	127.9	159.5
Services Net Sales | Eliminations
Condensed Income Statements Captions [Line Items]
Total net sales	(1.5)	(1.3)
Products Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales	101.7	95.7
Products Net Sales | Eliminations
Condensed Income Statements Captions [Line Items]
Total net sales	(1.1)	(0.8)
Parent
Condensed Income Statements Captions [Line Items]
Total net sales	0.0	0.0
Services cost of sales (exclusive of depreciation and amortization)	0.0	0.0
Products cost of sales (exclusive of depreciation and amortization)	0.0	0.0
Total cost of sales	0.0	0.0
Selling, general and administrative expenses (exclusive of depreciation and amortization)	0.0	0.0
Restructuring, impairment and other charges-net	0.0	0.0
Depreciation and amortization	0.0	0.0
Income from operations	0.0	0.0
Interest expense (income)-net	9.2	9.2
Intercompany interest (income) expense - net	(5.8)	(6.6)
Investment and other income-net	0.0	0.0
(Loss) earnings before income taxes and equity in net income of subsidiaries	(3.4)	(2.6)
Income tax (benefit) expense	(0.6)	(0.8)
(Loss) earnings before equity in net income of subsidiaries	(2.8)	(1.8)
Equity in net income of subsidiaries	1.4	9.5
Net (loss) earnings	(1.4)	7.7
Comprehensive (loss) income	1.2	8.9
Parent | Services Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales	0.0	0.0
Parent | Products Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales	0.0	0.0
Guarantor Subsidiaries
Condensed Income Statements Captions [Line Items]
Total net sales	204.9	214.6
Services cost of sales (exclusive of depreciation and amortization)	62.6	67.5
Products cost of sales (exclusive of depreciation and amortization)	73.1	65.1
Total cost of sales	135.7	132.6
Selling, general and administrative expenses (exclusive of depreciation and amortization)	47.2	55.3
Restructuring, impairment and other charges-net	1.5	0.8
Depreciation and amortization	10.5	9.0
Income from operations	10.0	16.9
Interest expense (income)-net	0.0	(0.2)
Intercompany interest (income) expense - net	5.8	6.6
Investment and other income-net	(0.6)	(0.8)
(Loss) earnings before income taxes and equity in net income of subsidiaries	4.8	11.3
Income tax (benefit) expense	0.9	3.5
(Loss) earnings before equity in net income of subsidiaries	3.9	7.8
Equity in net income of subsidiaries	(2.5)	1.7
Net (loss) earnings	1.4	9.5
Comprehensive (loss) income	3.9	10.8
Guarantor Subsidiaries | Services Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales	109.8	128.7
Guarantor Subsidiaries | Products Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales	95.1	85.9
Non-guarantor Subsidiaries
Condensed Income Statements Captions [Line Items]
Total net sales	27.3	42.7
Services cost of sales (exclusive of depreciation and amortization)	14.1	19.6
Products cost of sales (exclusive of depreciation and amortization)	6.7	8.5
Total cost of sales	20.8	28.1
Selling, general and administrative expenses (exclusive of depreciation and amortization)	7.7	10.8
Restructuring, impairment and other charges-net	0.6	(0.1)
Depreciation and amortization	1.6	1.4
Income from operations	(3.4)	2.5
Interest expense (income)-net	(0.3)	0.0
Intercompany interest (income) expense - net	0.0	0.0
Investment and other income-net	0.0	0.0
(Loss) earnings before income taxes and equity in net income of subsidiaries	(3.1)	2.5
Income tax (benefit) expense	(0.6)	0.8
(Loss) earnings before equity in net income of subsidiaries	(2.5)	1.7
Equity in net income of subsidiaries	0.0	0.0
Net (loss) earnings	(2.5)	1.7
Comprehensive (loss) income	(0.3)	2.4
Non-guarantor Subsidiaries | Services Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales	19.6	32.1
Non-guarantor Subsidiaries | Products Net Sales
Condensed Income Statements Captions [Line Items]
Total net sales	$ 7.7	$ 10.6