Segment Information - Schedule of Segment Reporting Information by Segment Revenue (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment Reporting Information [Line Items]
Revenue	$ 608.2	$ 568.1
Operating Income	37.2	36.7
Operating Margin	6.10%	6.50%
Industrial Process [Member]
Segment Reporting Information [Line Items]
Revenue	256.8	226.3
Operating Income	22.5	21.8
Operating Margin	8.80%	9.60%
Motion Technologies [Member]
Segment Reporting Information [Line Items]
Revenue	193.2	180.2
Operating Income	33.0	27.3
Operating Margin	17.10%	15.10%
Interconnect Solutions [Member]
Segment Reporting Information [Line Items]
Revenue	90.8	92.9
Operating Income	(1.3)	1.9
Operating Margin	(1.40%)	2.00%
Control Technologies [Member]
Segment Reporting Information [Line Items]
Revenue	68.6	70.1
Operating Income	14.4	13.2
Operating Margin	21.00%	18.80%
Total Segment Results [Member]
Segment Reporting Information [Line Items]
Revenue	609.4	569.5
Operating Income	68.6	64.2
Operating Margin	11.30%	11.30%
Asbestos-related costs, net [Member]
Segment Reporting Information [Line Items]
Revenue
Operating Income	(16.0)	(12.6)
Operating Margin
Eliminations / Other corporate costs [Member]
Segment Reporting Information [Line Items]
Revenue	(1.2)	(1.4)
Operating Income	(15.4)	(14.9)
Operating Margin
Total Eliminations / Corporate and Other costs [Member]
Segment Reporting Information [Line Items]
Revenue	(1.2)	(1.4)
Operating Income	$ (31.4)	$ (27.5)
Operating Margin