v3.26.3
Segment and Geographic Information - Summary of Financial Information by Reportable Segment (Detail) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Segment Reporting Information [Line Items]    
Total assets $ 2,818.5 $ 9,371.0
Cash and cash equivalents 683.1 613.5
Deferred income tax assets 305.6 1,722.3
Operating Segments [Member] | Aurora [Member]    
Segment Reporting Information [Line Items]    
Total assets 1,823.2 1,629.3
Segment Reconciling Items [Member]    
Segment Reporting Information [Line Items]    
Cash and cash equivalents 683.1 613.5
Deferred income tax assets 305.6 1,722.3
Divested and other business assets [1] 6.6 85.3
Assets held for sale $ 0.0 $ 5,320.6
[1] Reflects certain inventory retained by the Company related to continuing involvement in divested businesses pursuant to the Amphenol MSA, as discussed in Note 2, as well as other corporate assets. As of September 30, 2026, inventory of $2.6 million related to the OWN segment and DAS business unit and $4.0 million related to the Passive Optical Network (PON) business line within the CCS segment that was not divested with the sale of the CCS segment. As of December 31, 2025, inventory of $16.6 million related to the OWN segment and DAS business unit, $4.4 million related to the PON business line and $64.3 million related to corporate and other assets.