v3.25.4

Segment Information - Reconciliation of Income from Continuing Operations from Segments to Consolidated (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Operating Income (Loss) | $ 616.8 | $ 527.1 | $ 462.7
Goodwill, impairment loss | 0.0 | 0.0 | 0.0
Impairment of equity investments | 0.0 | (8.8) | 0.0
Restructuring costs | (7.5) | (7.0) | (3.9)
Amortization | (147.1) | (94.7) | (69.5)
Equity Method Investment, Realized Gain (Loss) on Disposal | 0.0 | 0.0 | 10.3
Income before income taxes | 550.0 | 429.2 | 375.3
Assets | 6,851.9 | 6,734.9 |
Depreciation | 60.7 | 51.3 | 43.7
Operating Segments |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Operating Income (Loss) | 909.6 | 757.6 | 677.2
Assets | 6,623.2 | 5,284.0 |
Depreciation | 56.0 | 47.5 | 38.7
Operating Segments | Systems Protection |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Operating Income (Loss) | 537.0 | 403.1 | 346.6
Restructuring costs | (1.2) | (1.2) | (1.4)
Assets | 3,342.2 | 2,129.3 |
Depreciation | 31.9 | 25.7 | 22.4
Operating Segments | Electrical Connections |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Operating Income (Loss) | 372.6 | 354.5 | 330.6
Restructuring costs | (3.4) | (4.8) | (1.6)
Assets | 3,281.0 | 3,154.7 |
Depreciation | 24.1 | 21.8 | 16.3
Enterprise and other |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Operating Income (Loss) | (123.8) | (105.6) | (110.6)
Restructuring costs | (2.9) | (1.0) | (0.9)
Assets | 228.7 | 1,450.9 |
Depreciation | 4.7 | 3.8 | 5.0
Enterprise and other | Discontinued Operations, Held-for-Sale |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Total assets held for sale |  | 1,276.1 |
Other Reconciling Items |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Impairment of equity investments | 0.0 | 8.8 | 0.0
Restructuring costs | (7.5) | (7.5) | (3.9)
Amortization | (147.1) | (94.7) | (69.5)
Mark-to-market actuarial gains (losses) on pension and post-retirement benefit plans | 12.9 | 0.1 | (13.4)
Business Combination, Acquisition Related Costs | (14.4) | (13.9) | (12.8)
Inventory Step Up Related To Merger | 0.0 | 0.0 | (17.7)
Equity Method Investment, Realized Gain (Loss) on Disposal | 0.0 | 0.0 | 10.3
Interest Income (Expense), Operating and Nonoperating | (75.0) | (106.0) | (79.4)
Other Nonoperating Expense | $ (4.7) | $ 8.0 | $ (4.9)

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