v3.26.3
Segment and Geographic Information - Additional Information (Detail)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
USD ($)
Sep. 30, 2025
Sep. 30, 2026
USD ($)
Segment
Sep. 30, 2025
Dec. 31, 2025
USD ($)
Segment Reporting Information [Line Items]          
Number of reportable segments | Segment     1    
Inventory, Net $ 357.8   $ 357.8   $ 238.7
Corporate and other assets         64.3
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]     srt:ChiefExecutiveOfficerMember    
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description     Segment net income (loss) provides the CODM with a GAAP-based measure of the overall profitability of the Company’s single reportable segment and represents the measure of segment profit or loss most consistent with the measurement principles used in the Company's consolidated financial statements, and is therefore presented as the primary measure of segment profit or loss as required under ASC 280, Segment Reporting. Segment adjusted EBITDA is the measure primarily used by the CODM to evaluate the operating performance of the business, assess period-over-period operating trends and make resource allocation decisions. Management believes segment adjusted EBITDA facilitates these assessments by excluding certain items that may not be indicative of the underlying operating performance of the business.    
OWN and Distributed Antenna Systems business unit of NICS segment [Member]          
Segment Reporting Information [Line Items]          
Inventory, Net 2.6   $ 2.6   16.6
Passive Optical Network [ Member]          
Segment Reporting Information [Line Items]          
Inventory, Net $ 4.0   $ 4.0   $ 4.4
Non-US [Member] | Sales Revenue, Net [Member] | Customer Concentration Risk [Member]          
Segment Reporting Information [Line Items]          
Concentration risk percentage 20.90% 18.70% 19.70% 22.20%