Revenue by Segment and Region (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 2,477.8	$ 2,846.4	$ 2,745.1
Intersegment Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		(2.8)	(3.1)	(2.7)
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	983.0	1,192.1	1,070.8
North America [Member] | Intersegment Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	(2.6)	(2.9)	(2.4)
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2]	869.3	996.1	1,000.7
Europe [Member] | Intersegment Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2]	0.0	0.0	(0.1)
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		413.7	427.2	431.4
Asia Pacific [Member] | Intersegment Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		(0.2)	(0.2)	(0.2)
Middle East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		112.3	132.7	146.6
Middle East [Member] | Intersegment Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		0.0	0.0	0.0
South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		99.5	98.3	95.6
South America [Member] | Intersegment Eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		0.0	0.0	0.0
Motion Technologies
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		1,121.1	1,241.8	1,274.1
Motion Technologies | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	187.3	204.4	185.3
Motion Technologies | Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2]	676.4	780.5	807.6
Motion Technologies | Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		243.8	241.7	265.5
Motion Technologies | Middle East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		1.5	2.3	1.3
Motion Technologies | South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		12.1	12.9	14.4
Industrial Process
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		843.0	943.8	827.1
Industrial Process | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	479.0	558.7	483.6
Industrial Process | Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2]	95.5	89.7	60.3
Industrial Process | Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		93.1	101.9	81.6
Industrial Process | Middle East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		92.0	114.1	128.1
Industrial Process | South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		83.4	79.4	73.5
Connect & Control Technologies
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		516.5	663.9	646.6
Connect & Control Technologies | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[1]	319.3	431.9	404.3
Connect & Control Technologies | Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	[2]	97.4	125.9	132.9
Connect & Control Technologies | Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		77.0	83.8	84.5
Connect & Control Technologies | Middle East [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		18.8	16.3	17.2
Connect & Control Technologies | South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 4.0	$ 6.0	$ 7.7

[1] Includes revenue of $811.0, $989.4, and $887.0, from the United States for 2020, 2019, and 2018, respectively.

[2] Includes revenue of $334.9, $391.2, and $412.5, from Germany for 2020, 2019, and 2018, respectively.