Revenue - Geographic Net Sales Information 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
Americas
Disaggregation of Revenue [Line Items]
Net sales	3,158.3	2,325.5	2,014.9
EMEA
Disaggregation of Revenue [Line Items]
Net sales	587.3	533.9	521.3
Asia-Pacific
Disaggregation of Revenue [Line Items]
Net sales	147.5	146.7	132.7
Systems Protection
Disaggregation of Revenue [Line Items]
Net sales	2,592.9	1,823.3	1,605.9
Systems Protection | Americas
Disaggregation of Revenue [Line Items]
Net sales	2,052.3	1,327.9	1,137.9
Systems Protection | EMEA
Disaggregation of Revenue [Line Items]
Net sales	433.8	387.2	369.7
Systems Protection | Asia-Pacific
Disaggregation of Revenue [Line Items]
Net sales	106.8	108.2	98.3
Electrical Connections
Disaggregation of Revenue [Line Items]
Net sales	1,300.2	1,182.8	1,063.0
Electrical Connections | Americas
Disaggregation of Revenue [Line Items]
Net sales	1,106.0	997.6	877.0
Electrical Connections | EMEA
Disaggregation of Revenue [Line Items]
Net sales	153.5	146.7	151.6
Electrical Connections | Asia-Pacific
Disaggregation of Revenue [Line Items]
Net sales	$ 40.7	$ 38.5	$ 34.4