Restructuring Costs and Other - Schedule of Costs (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
Restructuring Cost and Reserve [Line Items]
Total expected costs	$ 29.7
Costs incurred	10.2	$ 12.8
Remaining costs	6.7
2025 Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Total expected costs	11.4
Costs incurred	8.4	0.0
Remaining costs	3.0
2025 Restructuring Actions | Utility Solutions
Restructuring Cost and Reserve [Line Items]
Total expected costs	8.0
Costs incurred	5.3	0.0
Remaining costs	2.7
2025 Restructuring Actions | Electrical Solutions
Restructuring Cost and Reserve [Line Items]
Total expected costs	3.4
Costs incurred	3.1	0.0
Remaining costs	0.3
2024 and Prior Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Total expected costs	18.3
Costs incurred	1.8	12.8
Remaining costs	3.7
2024 and Prior Restructuring Actions | Utility Solutions
Restructuring Cost and Reserve [Line Items]
Total expected costs	4.7
Costs incurred	0.2	4.5
Remaining costs	0.0
2024 and Prior Restructuring Actions | Electrical Solutions
Restructuring Cost and Reserve [Line Items]
Total expected costs	13.6
Costs incurred	1.6	$ 8.3
Remaining costs	$ 3.7