Revenue by Segment and Region (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 2,745.1	$ 2,585.3	$ 2,405.4
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	1,070.8	1,009.0	1,030.9
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2]	1,000.7	958.2	805.4
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		431.4	393.3	352.4
Middle East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		146.6	130.5	126.6
South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		95.6	94.3	90.1
Motion Technologies
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		1,274.1	1,176.0	983.4
Motion Technologies | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	185.3	163.2	162.3
Motion Technologies | Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2]	807.6	767.6	618.8
Motion Technologies | Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		265.5	232.9	192.8
Motion Technologies | Middle East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		1.3	1.5	1.4
Motion Technologies | South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		14.4	10.8	8.1
Industrial Process
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		827.1	807.2	830.1
Industrial Process | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	483.6	472.3	495.1
Industrial Process | Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2]	60.3	67.7	72.1
Industrial Process | Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		81.6	75.3	75.0
Industrial Process | Middle East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		128.1	115.5	114.4
Industrial Process | South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		73.5	76.4	73.5
Connect & Control Technologies
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		646.6	605.6	596.3
Connect & Control Technologies | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	404.3	376.6	377.0
Connect & Control Technologies | Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2]	132.9	123.0	114.7
Connect & Control Technologies | Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		84.5	85.4	85.3
Connect & Control Technologies | Middle East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		17.2	13.5	10.8
Connect & Control Technologies | South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		7.7	7.1	8.5
Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		(2.7)	(3.5)	(4.4)
Eliminations | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	(2.4)	(3.1)	(3.5)
Eliminations | Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2]	(0.1)	(0.1)	(0.2)
Eliminations | Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		(0.2)	(0.3)	(0.7)
Eliminations | Middle East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		0.0	0.0	0.0
Eliminations | South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 0.0	$ 0.0	$ 0.0

[1] (a)Includes total revenue of $887.0, $853.6, and $900.3, from the United States for 2018, 2017, and 2016, respectively.

[2] (b)Includes total revenue of $412.5, $389.3, and $324.4, from Germany for 2018, 2017, and 2016, respectively.