v3.26.1
Segment Information - Reconciliation of Operating Profit (Loss) from Segments to Consolidated (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]          
Reportable segment income $ 300.7 $ 156.7 $ 496.4 $ 286.7  
Restructuring and other (1.3) (3.1) (4.3) (4.0)  
Intangible amortization (41.1) (35.9) (82.2) (64.1)  
Net interest expense (17.4) (17.6) (34.9) (35.0)  
Other expense (1.3) (1.1) (2.6) (2.2)  
Income from continuing operations before income taxes 282.0 138.0 458.9 249.5  
Assets 7,146.3   7,146.3   $ 6,851.9
Depreciation 17.4 14.4 34.2 28.2  
Capital expenditures     57.6 38.0  
Operating Segments          
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]          
Reportable segment income 357.0 232.0 644.9 421.3  
Assets 6,874.7   6,874.7   6,623.2
Depreciation 15.7 13.2 31.0 25.9  
Capital expenditures     52.9 34.1  
Operating Segments | Systems Protection          
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]          
Reportable segment income 248.2 137.1 451.3 241.3  
Restructuring and other (0.9) (0.3) (2.3) (0.6)  
Assets 3,581.1   3,581.1   3,342.2
Depreciation 9.6 7.1 18.7 14.0  
Capital expenditures     40.1 23.6  
Operating Segments | Electrical Connections          
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]          
Reportable segment income 108.8 94.9 193.6 180.0  
Restructuring and other (0.2) (0.5) (1.2) (0.8)  
Assets 3,293.6   3,293.6   3,281.0
Depreciation 6.1 6.1 12.3 11.9  
Capital expenditures     12.8 10.5  
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment          
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]          
Restructuring and other (2.0) (3.1) (10.9) (4.0)  
Acquisition transaction and integration costs (4.7) (4.3) (7.5) (7.4)  
Intangible amortization (41.1) (35.9) (82.2) (64.1)  
IEEPA tariffs 25.8 0.0 25.8 0.0  
Net interest expense (17.4) (17.6) (34.9) (35.0)  
Other expense (1.3) (1.1) (2.6) (2.2)  
Capital expenditures     4.7 3.9  
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment | Enterprise and other          
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]          
Reportable segment income (34.3) (32.0) (73.7) (59.1)  
Segment Reporting, Reconciling Item, Corporate Nonsegment          
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]          
Assets 271.6   271.6   $ 228.7
Depreciation $ 1.7 $ 1.2 $ 3.2 $ 2.3