Restructuring Costs - By Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	$ 3.9	$ 20.4	$ 28.8
Cost of goods sold
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	2.4	16.3	20.1
S&A expense
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	1.5	4.1	8.7
Electrical Solutions
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	1.5	10.0	16.8
Electrical Solutions | Cost of goods sold
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	1.1	7.1	10.0
Electrical Solutions | S&A expense
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	0.4	2.9	6.8
Utility Solutions
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	2.4	10.4	12.0
Utility Solutions | Cost of goods sold
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	1.3	9.2	10.1
Utility Solutions | S&A expense
Restructuring Cost and Reserve [Line Items]
Pre-tax Restructuring Costs	$ 1.1	$ 1.2	$ 1.9