Revenue - Vertical Sales by Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Net sales	$ 3,893.1	$ 3,006.1	$ 2,668.9
Systems Protection
Disaggregation of Revenue [Line Items]
Net sales	2,592.9	1,823.3	1,605.9
Electrical Connections
Disaggregation of Revenue [Line Items]
Net sales	1,300.2	1,182.8	1,063.0
Industrial
Disaggregation of Revenue [Line Items]
Net sales	1,746.1	980.9	796.8
Industrial | Systems Protection
Disaggregation of Revenue [Line Items]
Net sales	1,298.9	640.0	468.9
Industrial | Electrical Connections
Disaggregation of Revenue [Line Items]
Net sales	447.2	340.9	327.9
Commercial & Residential
Disaggregation of Revenue [Line Items]
Net sales	1,169.8	1,064.6	992.3
Commercial & Residential | Systems Protection
Disaggregation of Revenue [Line Items]
Net sales	998.9	911.3	868.9
Commercial & Residential | Electrical Connections
Disaggregation of Revenue [Line Items]
Net sales	170.9	153.3	123.4
Energy
Disaggregation of Revenue [Line Items]
Net sales	896.8	878.9	810.0
Energy | Systems Protection
Disaggregation of Revenue [Line Items]
Net sales	260.8	242.7	242.4
Energy | Electrical Connections
Disaggregation of Revenue [Line Items]
Net sales	636.0	636.2	567.6
Infrastructure
Disaggregation of Revenue [Line Items]
Net sales	80.4	81.7	69.8
Infrastructure | Systems Protection
Disaggregation of Revenue [Line Items]
Net sales	34.3	29.3	25.7
Infrastructure | Electrical Connections
Disaggregation of Revenue [Line Items]
Net sales	$ 46.1	$ 52.4	$ 44.1