Revenue - Geographic Net Sales Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 447.2	$ 539.5	$ 968.1	$ 1,077.5
U.S. and Canada
Disaggregation of Revenue [Line Items]
Net sales	292.6	369.1	639.8	730.8
Developed Europe (1)
Disaggregation of Revenue [Line Items]
Net sales	100.9	105.9	219.6	218.5
Developing Countries
Disaggregation of Revenue [Line Items]
Net sales	42.3	55.0	87.3	107.8
Other Developed Countries
Disaggregation of Revenue [Line Items]
Net sales	11.4	9.5	21.4	20.4
Enclosures
Disaggregation of Revenue [Line Items]
Net sales	219.3	260.0	477.8	515.5
Enclosures | U.S. and Canada
Disaggregation of Revenue [Line Items]
Net sales	140.8	186.1	314.9	366.5
Enclosures | Developed Europe (1)
Disaggregation of Revenue [Line Items]
Net sales	55.5	47.5	117.4	98.4
Enclosures | Developing Countries
Disaggregation of Revenue [Line Items]
Net sales	19.6	23.6	39.0	45.3
Enclosures | Other Developed Countries
Disaggregation of Revenue [Line Items]
Net sales	3.4	2.8	6.5	5.3
Thermal Management
Disaggregation of Revenue [Line Items]
Net sales	95.8	128.8	216.3	273.9
Thermal Management | U.S. and Canada
Disaggregation of Revenue [Line Items]
Net sales	51.2	73.4	121.8	157.3
Thermal Management | Developed Europe (1)
Disaggregation of Revenue [Line Items]
Net sales	24.0	30.2	53.6	65.3
Thermal Management | Developing Countries
Disaggregation of Revenue [Line Items]
Net sales	16.4	21.9	33.3	42.9
Thermal Management | Other Developed Countries
Disaggregation of Revenue [Line Items]
Net sales	4.2	3.3	7.6	8.4
Electrical & Fastening Solutions
Disaggregation of Revenue [Line Items]
Net sales	132.1	150.7	274.0	288.1
Electrical & Fastening Solutions | U.S. and Canada
Disaggregation of Revenue [Line Items]
Net sales	100.6	109.6	203.1	207.0
Electrical & Fastening Solutions | Developed Europe (1)
Disaggregation of Revenue [Line Items]
Net sales	21.4	28.2	48.6	54.8
Electrical & Fastening Solutions | Developing Countries
Disaggregation of Revenue [Line Items]
Net sales	6.3	9.5	15.0	19.6
Electrical & Fastening Solutions | Other Developed Countries
Disaggregation of Revenue [Line Items]
Net sales	$ 3.8	$ 3.4	$ 7.3	$ 6.7