Restructuring Costs and Other - Summary of Costs (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Total expected costs	$ 13.9
Costs incurred	1.6	$ 3.9
Remaining costs at 3/31/2022	8.4
2022 Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Total expected costs	3.3
Costs incurred	1.6	0.0
Remaining costs at 3/31/2022	1.7
2022 Restructuring Actions | Electrical Solutions
Restructuring Cost and Reserve [Line Items]
Total expected costs	0.1
Costs incurred	0.1	0.0
Remaining costs at 3/31/2022	0.0
2022 Restructuring Actions | Utility Solutions
Restructuring Cost and Reserve [Line Items]
Total expected costs	3.2
Costs incurred	1.5	0.0
Remaining costs at 3/31/2022	1.7
2021 and Prior Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Total expected costs	10.6
Costs incurred	0.0	3.9
Remaining costs at 3/31/2022	6.7
2021 and Prior Restructuring Actions | Electrical Solutions
Restructuring Cost and Reserve [Line Items]
Total expected costs	2.1
Costs incurred	0.1	1.5
Remaining costs at 3/31/2022	0.5
2021 and Prior Restructuring Actions | Utility Solutions
Restructuring Cost and Reserve [Line Items]
Total expected costs	8.5
Costs incurred	(0.1)	$ 2.4
Remaining costs at 3/31/2022	$ 6.2