Segment Results - Summary (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting [Abstract]
Revenue	$ 1,335.2	$ 596.7	$ 3,399.5	$ 1,846.1
Adjusted EBITDA	320.2	147.6	754.4	451.6
Less items to reconcile Segment Adjusted EBITDA to Income (Loss) Before Income Taxes:
Interest expense	28.8	23.2	86.7	68.0
Impairment of intangible assets	19.9	0.0	19.9	0.0
Restructuring and related business transformation costs	12.3	9.9	86.7	16.1
Acquisition related expenses and non-cash charges	9.0	15.3	77.0	34.1
Stock-based compensation			29.0	13.4
Foreign currency transaction losses, net	6.2	(0.6)	14.0	3.1
Loss on extinguishment of debt	0.0	0.0	2.0	0.2
Shareholder litigation settlement recoveries	0.0	0.0	0.0	(6.0)
Income (Loss) Before Income Taxes	48.1	50.3	(128.3)	162.6
Depreciation of rental equipment	2.7		5.4
Restructuring Costs [Abstract]
Restructuring charges	12.2	8.1	84.4	10.9
Facility reorganization, relocation and other costs	0.0	0.8	0.5	1.9
Other, net	0.1	1.0	1.8	3.3
Total restructuring and related business transformation costs	12.3	9.9	86.7	16.1
Stock-based compensation expense	12.8	(0.2)	29.0	13.4
Decrease in stock-based compensation expense due to costs associated with employer taxes			(0.5)
Increase in stock-based compensation expense due to costs associated with employer taxes		0.2		1.4
Industrial Technologies and Services
Segment Reporting [Abstract]
Revenue	902.6	415.3	2,236.2	1,248.0
Restructuring Costs [Abstract]
Restructuring charges			66.9
Precision and Science Technologies
Segment Reporting [Abstract]
Revenue	209.9	81.4	518.5	242.7
Restructuring Costs [Abstract]
Restructuring charges			5.6
High Pressure Solutions
Segment Reporting [Abstract]
Revenue	31.7	100.0	149.5	355.4
Restructuring Costs [Abstract]
Restructuring charges			6.1
Specialty Vehicle Technologies
Segment Reporting [Abstract]
Revenue	191.0	0.0	495.3	0.0
Restructuring Costs [Abstract]
Restructuring charges			0.9
Operating segments | Industrial Technologies and Services
Segment Reporting [Abstract]
Revenue	902.6	415.3	2,236.2	1,248.0
Adjusted EBITDA	216.8	95.2	495.4	277.5
Operating segments | Precision and Science Technologies
Segment Reporting [Abstract]
Revenue	209.9	81.4	518.5	242.7
Adjusted EBITDA	64.5	25.3	156.7	73.1
Operating segments | High Pressure Solutions
Segment Reporting [Abstract]
Revenue	31.7	100.0	149.5	355.4
Adjusted EBITDA	1.3	27.1	9.6	101.0
Operating segments | Specialty Vehicle Technologies
Segment Reporting [Abstract]
Revenue	191.0	0.0	495.3	0.0
Adjusted EBITDA	37.6	0.0	92.7	0.0
Corporate expenses not allocated to segments
Less items to reconcile Segment Adjusted EBITDA to Income (Loss) Before Income Taxes:
Operating expenses	36.0	5.8	81.2	24.5
Restructuring Costs [Abstract]
Restructuring charges			4.9
Segment reconciling items
Less items to reconcile Segment Adjusted EBITDA to Income (Loss) Before Income Taxes:
Interest expense	28.8	23.2	86.7	68.0
Depreciation and amortization expenses	140.1	43.1	354.2	132.9
Impairment of intangible assets	19.9	0.0	19.9	0.0
Restructuring and related business transformation costs	12.3	9.9	86.7	16.1
Acquisition related expenses and non-cash charges	15.3	15.9	207.4	34.7
Stock-based compensation	12.8	0.0	28.5	14.8
Foreign currency transaction losses, net	6.2	(0.6)	14.0	3.1
Loss on extinguishment of debt	0.0	0.0	2.0	0.2
Shareholder litigation settlement recoveries	0.0	0.0	0.0	(6.0)
Other adjustments	0.7	0.0	2.1	0.7
Income (Loss) Before Income Taxes	48.1	50.3	(128.3)	162.6
Restructuring Costs [Abstract]
Total restructuring and related business transformation costs	$ 12.3	$ 9.9	$ 86.7	$ 16.1