Restructuring Costs and Other - By Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1.6	$ 0.3
Cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1.1	0.5
Selling & administrative expense
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.5	(0.2)
Electrical Solutions
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.2	0.0
Electrical Solutions | Cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.1	0.2
Electrical Solutions | Selling & administrative expense
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.1	(0.2)
Utility Solutions
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1.4	0.3
Utility Solutions | Cost of goods sold
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1.0	0.3
Utility Solutions | Selling & administrative expense
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0.4	$ 0.0