Revenue - Geographic Net Sales Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 520.9	$ 538.0
U.S. and Canada
Disaggregation of Revenue [Line Items]
Net sales	347.2	361.7
Developed Europe (1)
Disaggregation of Revenue [Line Items]
Net sales	118.7	112.6
Developing Countries
Disaggregation of Revenue [Line Items]
Net sales	45.0	52.8
Other Developed Countries
Disaggregation of Revenue [Line Items]
Net sales	10.0	10.9
Enclosures
Disaggregation of Revenue [Line Items]
Net sales	258.5	255.5
Enclosures | U.S. and Canada
Disaggregation of Revenue [Line Items]
Net sales	174.1	180.4
Enclosures | Developed Europe (1)
Disaggregation of Revenue [Line Items]
Net sales	61.9	50.9
Enclosures | Developing Countries
Disaggregation of Revenue [Line Items]
Net sales	19.4	21.7
Enclosures | Other Developed Countries
Disaggregation of Revenue [Line Items]
Net sales	3.1	2.5
Thermal Management
Disaggregation of Revenue [Line Items]
Net sales	120.5	145.1
Thermal Management | U.S. and Canada
Disaggregation of Revenue [Line Items]
Net sales	70.6	83.9
Thermal Management | Developed Europe (1)
Disaggregation of Revenue [Line Items]
Net sales	29.6	35.1
Thermal Management | Developing Countries
Disaggregation of Revenue [Line Items]
Net sales	16.9	21.0
Thermal Management | Other Developed Countries
Disaggregation of Revenue [Line Items]
Net sales	3.4	5.1
Electrical & Fastening Solutions
Disaggregation of Revenue [Line Items]
Net sales	141.9	137.4
Electrical & Fastening Solutions | U.S. and Canada
Disaggregation of Revenue [Line Items]
Net sales	102.5	97.4
Electrical & Fastening Solutions | Developed Europe (1)
Disaggregation of Revenue [Line Items]
Net sales	27.2	26.6
Electrical & Fastening Solutions | Developing Countries
Disaggregation of Revenue [Line Items]
Net sales	8.7	10.1
Electrical & Fastening Solutions | Other Developed Countries
Disaggregation of Revenue [Line Items]
Net sales	$ 3.5	$ 3.3