Segment Information (Details) $ in Millions				12 Months Ended
		Aug. 31, 2017 USD ($)	May 31, 2017 USD ($)	Dec. 31, 2017 USD ($) Segment	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Segment Information [Abstract]
Number of reportable segments | Segment				3
Segment Reporting Information [Line Items]
Revenue				$ 2,375.4	$ 1,939.4	$ 2,126.9
Less items to reconcile Segment Adjusted EBITDA to Loss Before Income Taxes [Abstract]
Interest expense				140.7	170.3	162.9
Depreciation and amortization expense				173.8	172.7	163.0
Impairment of goodwill and other intangible assets				1.6	25.3	421.4
Restructuring and related business transformation costs				24.7	78.7	31.4
Stock-based compensation				175.0	0.0	0.0
Loss on extinguishment of debt		$ 34.1	$ 50.4	84.5	0.0	0.0
Foreign currency transaction losses (gains), net				9.3	(5.9)	1.1
Loss Before Income Taxes				(112.7)	(63.2)	(366.7)
Restructuring and Related Business Transformation Costs [Abstract]
Restructuring charges	[1]			5.3	32.9	4.7
Severance, sign-on, relocation and executive search costs				3.5	22.4	18.4
Facility reorganization, relocation and other costs				5.3	8.7	1.6
Information technology infrastructure transformation				5.2	2.3	0.0
Losses (gains) on asset and business disposals				0.8	0.1	(4.5)
Consultant and other advisor fees				1.7	9.7	10.1
Other, net				2.9	2.6	1.1
Restructuring and related business transformation costs				24.7	78.7	31.4
Identifiable assets				4,621.2	4,316.0	4,462.0
Capital expenditures				56.8	74.4	71.0
KKR [Member]
Less items to reconcile Segment Adjusted EBITDA to Loss Before Income Taxes [Abstract]
Monitoring agreement termination fee				16.2
2013 Stock Incentive Plan [Member] | Stock Options [Member]
Restructuring and Related Business Transformation Costs [Abstract]
Stock-based compensation expense recognized				(77.6)
2013 Stock Incentive Plan [Member] | Deferred Stock Units [Member]
Restructuring and Related Business Transformation Costs [Abstract]
Stock-based compensation expense recognized				(97.4)
Employer taxes related to DSUs granted				19.2
Operating Segments [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA				601.2	423.3	443.9
Restructuring and Related Business Transformation Costs [Abstract]
Identifiable assets				4,222.0	3,930.9	4,121.3
Operating Segments [Member] | Industrials [Member]
Segment Reporting Information [Line Items]
Revenue				1,130.7	1,082.3	1,149.7
Adjusted EBITDA				242.7	217.6	197.6
Less items to reconcile Segment Adjusted EBITDA to Loss Before Income Taxes [Abstract]
Depreciation and amortization expense				94.5	96.0	89.1
Restructuring and Related Business Transformation Costs [Abstract]
Identifiable assets				2,029.4	1,943.6	2,078.9
Capital expenditures				26.7	44.7	25.8
Operating Segments [Member] | Energy [Member]
Segment Reporting Information [Line Items]
Revenue				1,014.5	628.4	753.5
Adjusted EBITDA				296.1	143.8	186.8
Less items to reconcile Segment Adjusted EBITDA to Loss Before Income Taxes [Abstract]
Depreciation and amortization expense				56.7	55.5	53.8
Restructuring and Related Business Transformation Costs [Abstract]
Identifiable assets				1,681.5	1,501.0	1,572.8
Capital expenditures				21.1	21.4	38.6
Operating Segments [Member] | Medical [Member]
Segment Reporting Information [Line Items]
Revenue				230.2	228.7	223.7
Adjusted EBITDA				62.4	61.9	59.5
Less items to reconcile Segment Adjusted EBITDA to Loss Before Income Taxes [Abstract]
Depreciation and amortization expense				22.6	21.2	20.1
Restructuring and Related Business Transformation Costs [Abstract]
Identifiable assets				511.1	486.3	469.6
Capital expenditures				9.0	8.3	6.6
Corporate [Member]
Less items to reconcile Segment Adjusted EBITDA to Loss Before Income Taxes [Abstract]
Corporate expenses not allocated to segments	[2]			39.7	22.6	25.0
Restructuring and Related Business Transformation Costs [Abstract]
Identifiable assets				399.2	385.1	340.7
Segment Reconciling Items [Member]
Less items to reconcile Segment Adjusted EBITDA to Loss Before Income Taxes [Abstract]
Interest expense	[2]			140.7	170.3	162.9
Depreciation and amortization expense	[2]			173.8	172.7	163.0
Impairment of goodwill and other intangible assets	[2],[3]			1.6	25.3	421.4
Sponsor fees and expenses	[2],[4]			17.3	4.8	4.6
Restructuring and related business transformation costs	[2],[5]			24.7	78.7	31.4
Acquisition related expenses and non-cash charges	[2],[6]			4.1	4.3	4.8
Environmental remediation loss reserve	[2],[7]			0.9	5.6	0.0
Expenses related to public stock offerings	[2],[8]			4.1	0.0	0.0
Establish public company financial reporting compliance	[2],[9]			8.1	0.2	0.0
Stock-based compensation	[2],[10]			194.2	0.0	0.0
Loss on extinguishment of debt	[2],[11]			84.5	0.0	0.0
Foreign currency transaction losses (gains), net	[2]			9.3	(5.9)	1.1
Other adjustments	[2],[12]			10.9	7.9	(3.6)
Restructuring and Related Business Transformation Costs [Abstract]
Restructuring and related business transformation costs	[2],[5]			$ 24.7	$ 78.7	$ 31.4

[1] See Note 4 "Restructuring."

[2] In the fourth quarter of fiscal 2017, the Company provided greater detail in presenting reconciling items from Loss Before Income Taxes. The reconciling items for the years ended December 31, 2016 and 2015 have been restated to conform to the methodology used in the year ended December 31, 2017, and include the following.

[3] Represents non-cash charges for impairment of goodwill and other intangible assets.

[4] Represents management fees and expenses paid to our Sponsor, including a monitoring agreement termination fee of $16.2 million paid in 2017 concurrent with our initial public offering on May 12, 2017.

[5] Restructuring and related business transformation costs consist of the following.

[6] Represents costs associated with successful and/or abandoned acquisitions, including third-party expenses, post-closure integration costs and non-cash charges and credits arising from fair value purchase accounting adjustments.

[7] Represents estimated environmental remediation costs and losses relating to a former production facility.

[8] Represents expenses related to the Company's initial stock offering and subsequent secondary offerings.

[9] Represents third party expenses to comply with the requirements of Sarbanes-Oxley in 2018 and the accelerated adoption of the new revenue recognition standard (ASC 606 - Revenue from Contracts with Customers) in the first quarter of 2018, one year ahead of the required adoption date for a private company. These expenses were previously included in 'Expenses related to initial stock offering' and prior periods have been restated to conform to the current period presentation.

[10] Represents stock-based compensation expense recognized for stock options outstanding for the year ended December 31, 2017 of ($77.6 million) and DSUs granted to employees at the date of the initial public offering for the year ended December 31, 2017 of ($97.4 million) and employer taxes related to DSUs granted to employees at the date of the initial public offering ($19.2 million). See Note 15 "Stock-Based Compensation."

[11] Represents losses on extinguishment of debt recognized on the redemption of the senior notes and pay down of a portion of the Original Dollar Term Loan Facility and proceeds from the initial public offering in May 2017 ($50.4 million) and in connection with the refinancing of the Original Dollar Term Loan Facility and Euro Term Loan Facility in August 2017 ($34.1 million).

[12] Includes (i) non-cash impact of net LIFO reserve adjustments, (ii) effects of amortization of prior service costs and amortization of gains in pension and other postretirement benefits (OPEB) expense, (iii) certain legal and compliance costs and (iv) other miscellaneous adjustments.