v3.26.3
Segment and Geographic Information - Summary of Net Sales, Significant Segment Expenses and and Depreciation Used in Determining Segment Adjusted EBITDA (Detail) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting [Line Items]        
Segment net sales $ 319.7 $ 337.8 $ 937.7 $ 897.5
Cost of sales 207.3 217.4 596.2 527.2
Operating expenses 97.1 140.5 336.2 431.4
Amortization of intangible assets (19.0) (21.6) (59.6) (66.8)
Restructuring costs, net (2.1) (1.6) (17.2) (13.1)
Equity-based compensation     (23.7) (27.3)
Operating income (loss) 22.9 (11.5) 14.5 (33.5)
Other income, net (0.2) 0.1 3.2 (6.2)
Income tax (expense) benefit (20.0) 11.4 (42.3) (347.8)
Income (loss) from continuing operations 54.7 (18.9) 97.4 319.5
Income from discontinued operations, net of tax 975.9 127.3 6,736.3 604.7
Net income 1,030.6 108.4 6,833.7 924.2
Corporate, Non-Segment        
Segment Reporting [Line Items]        
Unallocated amounts [1] (0.1) (37.0) (30.6) (106.8)
EBITDA        
Segment Reporting [Line Items]        
Segment net sales 319.8 337.8 937.5 885.3
Cost of sales (207.3) (211.9) (595.5) (510.2)
Operating expenses (58.6) (75.4) (198.2) (213.7)
Addback: Depreciation 2.9 3.6 8.9 11.1
Segment adjusted EBITDA 56.8 54.1 152.7 172.5
Amortization of intangible assets (19.0) (21.6) (59.6) (66.8)
Restructuring costs, net (2.1) (1.6) (17.2) (13.1)
Transaction, transformation and integration costs (2.3) (1.3) (14.6) (11.3)
Depreciation (2.9) (4.7) (9.2) (15.1)
Other expense, net [2] 0.0 0.1 0.0 (4.8)
Operating income (loss) 22.9 (11.5) 14.5 (33.5)
Other income, net 11.8 4.0 40.6 5.2
Income tax (expense) benefit 20.0 (11.4) 42.3 347.8
Income (loss) from continuing operations 54.7 (18.9) 97.4 319.5
Income from discontinued operations, net of tax 975.9 127.3 6,736.3 604.7
Net income 1,030.6 108.4 6,833.7 924.2
EBITDA | Continuing Operations [Member]        
Segment Reporting [Line Items]        
Equity-based compensation (7.4) (7.2) (18.5) (18.3)
EBITDA | Corporate, Non-Segment        
Segment Reporting [Line Items]        
Unallocated amounts [3] $ (0.2) $ (29.3) $ (19.1) $ (76.6)
[1] Includes certain revenues reflected within continuing operations related to products associated with businesses affected by prior divestiture transactions. Such amounts continue to be reported within continuing operations based on the terms of the underlying transactions. Also reflected in unallocated amounts are general corporate costs that were previously allocated to the divested businesses. These indirect expenses have been classified as continuing operations because they were not directly attributable to the divested businesses. Beginning in the first quarter of 2025, the costs previously allocated to the OWN segment and DAS business unit were reallocated to the Company’s remaining segments and partially offset by income under the Amphenol TSA. Beginning in the first quarter of 2026, the costs previously allocated to the CCS segment were reallocated to the Company’s remaining segments and partially offset by income under the Amphenol TSA. Beginning in the third quarter of 2026, the costs previously allocated to the RUCKUS segment were reallocated to the Company’s remaining segment and partially offset by income under the Belden TSA.
[2] Reflects the pretax gain (loss) recognized in 2025 on the sale of the Company's OneCell business.
[3] Includes certain revenues reflected within continuing operations related to products associated with businesses affected by prior divestiture transactions. Such amounts continue to be reported within continuing operations based on the terms of the underlying transactions. Also reflected in unallocated amounts are general corporate costs that were previously allocated to the divested businesses. These indirect expenses have been classified as continuing operations because they were not directly attributable to the divested businesses. Beginning in the first quarter of 2025, the costs previously allocated to the OWN segment and DAS business unit were reallocated to the Company’s remaining segments and partially offset by income under the Amphenol TSA. Beginning in the first quarter of 2026, the costs previously allocated to the CCS segment were reallocated to the Company’s remaining segments and partially offset by income under the Amphenol TSA. Beginning in the third quarter of 2026, the costs previously allocated to the RUCKUS segment were reallocated to the Company’s remaining segment and partially offset by income under the Belden TSA.