Goodwill and Other Intangible Assets (Details) $ in Millions		3 Months Ended					12 Months Ended			36 Months Ended
		Dec. 31, 2017 USD ($) Trademark	Dec. 31, 2016 USD ($) Trademark	Jun. 30, 2016 USD ($)	Dec. 31, 2015 USD ($) Trademark	Sep. 30, 2015 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($) Entity	Dec. 31, 2015 USD ($)	Dec. 31, 2017 USD ($) Business
Goodwill [Roll Forward]
Balance at beginning of period							$ 1,154.7	$ 1,191.0
Acquisitions							7.9	4.1
Impairment					$ (343.3)		0.0	0.0	$ (343.3)
Correction of purchase accounting allocation								(15.3)
Foreign currency translation								(25.1)
Foreign currency translation and other	[1]						65.0
Balance at end of period		$ 1,227.6	$ 1,154.7		1,191.0		1,227.6	1,154.7	1,191.0	$ 1,227.6
Number of entities acquired | Business										4
Amortized intangible assets [Abstract]
Accumulated amortization		(576.6)	(431.3)				(576.6)	(431.3)		$ (576.6)
Unamortized intangible assets [Abstract]
Total other intangible assets		2,007.8	1,901.2				2,007.8	1,901.2		2,007.8
Amortization of intangible assets							118.9	124.2	115.4
Estimated Amortization of intangible assets 2018		118.1					118.1			118.1
Estimated Amortization of intangible assets 2019		118.1					118.1			118.1
Estimated Amortization of intangible assets 2020		118.1					118.1			118.1
Estimated Amortization of intangible assets 2021		118.1					118.1			118.1
Estimated Amortization of intangible assets 2022		118.1					118.1			118.1
Impairment of other intangible assets				$ 1.5		$ 7.2	1.6	25.3	78.1
Industrials [Member]
Goodwill [Roll Forward]
Balance at beginning of period							515.8	550.9
Acquisitions							7.9	0.0
Correction of purchase accounting allocation								(15.3)
Foreign currency translation								(19.8)
Foreign currency translation and other	[1]						37.9
Balance at end of period		561.6	515.8		550.9		561.6	515.8	550.9	561.6
Energy [Member]
Goodwill [Roll Forward]
Balance at beginning of period							439.9	441.4
Acquisitions							0.0	0.0
Correction of purchase accounting allocation								0.0
Foreign currency translation								(1.5)
Foreign currency translation and other	[1]						20.3
Balance at end of period		460.2	439.9		441.4		460.2	439.9	441.4	460.2
Accumulated goodwill impairment losses		563.9	563.9				563.9	563.9		563.9
Medical [Member]
Goodwill [Roll Forward]
Balance at beginning of period							199.0	198.7
Acquisitions							0.0	4.1
Correction of purchase accounting allocation							0.4	0.0
Foreign currency translation								(3.8)
Foreign currency translation and other	[1]						6.8
Balance at end of period		205.8	199.0		198.7		205.8	$ 199.0	$ 198.7	205.8
Number of entities acquired | Entity								2
Trademarks [Member]
Unamortized intangible assets [Abstract]
Gross carrying amount		623.5	609.5				623.5	$ 609.5		623.5
Impairment of intangible assets, indefinite-lived		1.5	24.4		71.1
Trademarks [Member] | Industrials [Member]
Unamortized intangible assets [Abstract]
Impairment of intangible assets, indefinite-lived		$ 1.2	$ 23.2		5.0
Number of trademarks | Trademark		2	3
Trademarks [Member] | Energy [Member]
Unamortized intangible assets [Abstract]
Impairment of intangible assets, indefinite-lived		$ 0.3	$ 1.2		13.5
Trademarks [Member] | Medical [Member]
Unamortized intangible assets [Abstract]
Impairment of intangible assets, indefinite-lived						3.7
Nash Trademark [Member] | Industrials [Member]
Unamortized intangible assets [Abstract]
Impairment of intangible assets, indefinite-lived					$ 41.8
Number of trademarks | Trademark					6
Nash Trademark [Member] | Energy [Member]
Unamortized intangible assets [Abstract]
Impairment of intangible assets, indefinite-lived					$ 10.8
Customer Lists and Relationships [Member]
Amortized intangible assets [Abstract]
Gross carrying amount		1,226.8	1,160.5				1,226.8	1,160.5		1,226.8
Accumulated amortization		(473.0)	(345.5)				(473.0)	(345.5)		(473.0)
Acquired Technology [Member]
Amortized intangible assets [Abstract]
Gross carrying amount		8.1	7.1				8.1	7.1		8.1
Accumulated amortization		(4.0)	(2.2)				(4.0)	(2.2)		(4.0)
Trademarks [Member]
Amortized intangible assets [Abstract]
Gross carrying amount		30.3	27.4				30.3	27.4		30.3
Accumulated amortization		(10.6)	(6.9)				(10.6)	(6.9)		(10.6)
Backlog [Member]
Amortized intangible assets [Abstract]
Gross carrying amount		65.5	60.3				65.5	60.3		65.5
Accumulated amortization		(65.5)	(60.3)				(65.5)	(60.3)		(65.5)
Other [Member]
Amortized intangible assets [Abstract]
Gross carrying amount		53.6	36.4				53.6	36.4		53.6
Accumulated amortization		$ (23.5)	$ (16.4)				$ (23.5)	$ (16.4)		$ (23.5)
Customer Relationships [Member] | Energy [Member]
Amortized intangible assets [Abstract]
Impairment of intangible assets, finite-lived						$ 3.5

[1] During the fiscal year ended December 31, 2017, the Company recorded an increase in goodwill of $0.4 million as a result of measurement period adjustments in the Medical segment.