Goodwill and Other Intangible Assets, Net - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Goodwill [Roll Forward]
Goodwill , beginning balance	$ 778.3	$ 632.1
Goodwill acquired		174.9
Goodwill, Purchase Accounting Adjustments	3.0
Allocated to divestiture		(2.7)
Foreign currency	(6.6)	(26.0)
Goodwill , ending Balance	774.7	778.3
Industrial Process [Member]
Goodwill [Roll Forward]
Goodwill , beginning balance	312.6	331.9
Goodwill acquired		0.0
Goodwill, Purchase Accounting Adjustments	0.0
Foreign currency	(4.2)	(19.3)
Goodwill , ending Balance	308.4	312.6
Motion Technologies [Member]
Goodwill [Roll Forward]
Goodwill , beginning balance	201.0	43.9
Goodwill acquired		161.6
Goodwill, Purchase Accounting Adjustments	2.6
Foreign currency	(1.3)	(4.5)
Goodwill , ending Balance	202.3	201.0
Interconnect Solutions [Member]
Goodwill [Roll Forward]
Goodwill , beginning balance	69.0	71.2
Goodwill acquired		0.0
Goodwill, Purchase Accounting Adjustments	0.0
Foreign currency	(1.1)	(2.2)
Goodwill , ending Balance	67.9	69.0
Control Technologies [Member]
Goodwill [Roll Forward]
Goodwill , beginning balance	195.7	185.1
Goodwill acquired		13.3
Goodwill, Purchase Accounting Adjustments	0.4
Allocated to divestiture		(2.7)
Foreign currency	0.0	0.0
Goodwill , ending Balance	$ 196.1	$ 195.7