Revenue - Vertical Sales by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Disaggregation of Revenue [Line Items]
Net sales	$ 1,242.0	$ 809.3
Systems Protection
Disaggregation of Revenue [Line Items]
Net sales	894.8	508.2
Electrical Connections
Disaggregation of Revenue [Line Items]
Net sales	347.2	301.1
Infrastructure
Disaggregation of Revenue [Line Items]
Net sales	693.4	316.8
Infrastructure | Systems Protection
Disaggregation of Revenue [Line Items]
Net sales	560.0	218.0
Infrastructure | Electrical Connections
Disaggregation of Revenue [Line Items]
Net sales	133.4	98.8
Industrial
Disaggregation of Revenue [Line Items]
Net sales	317.3	278.9
Industrial | Systems Protection
Disaggregation of Revenue [Line Items]
Net sales	264.2	231.3
Industrial | Electrical Connections
Disaggregation of Revenue [Line Items]
Net sales	53.1	47.6
Commercial & Residential
Disaggregation of Revenue [Line Items]
Net sales	231.3	213.6
Commercial & Residential | Systems Protection
Disaggregation of Revenue [Line Items]
Net sales	70.6	58.9
Commercial & Residential | Electrical Connections
Disaggregation of Revenue [Line Items]
Net sales	$ 160.7	$ 154.7