Segment Information and Major Customers - Additional Information (Detail) $ in Thousands	3 Months Ended				6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2024 USD ($)	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($) Customer Category Segment	Dec. 31, 2023 USD ($) Customer	Dec. 31, 2022 USD ($) Customer
Segment Reporting Information [Line Items]
Number of reportable segments | Segment							2
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]							Chief Executive Officer [Member]
Depreciation expense							$ 27,700	$ 30,200	$ 20,900
Number of categories | Category							3
Number of single customer comprising more than 10% of sales | Customer							1	1	1
Property, plant and equipment, net	$ 106,454						$ 106,454	$ 118,157
Revenue	242,852	$ 227,704	$ 225,991	$ 226,173	$ 452,164	$ 679,868	922,720	1,149,100	$ 1,025,536
Network Solutions [Member]
Segment Reporting Information [Line Items]
Depreciation expense							6,100	6,500	3,200
Revenue	197,009	181,488	179,194	181,273	360,467	541,955	738,964	974,389	916,793
Services & Support [Member]
Segment Reporting Information [Line Items]
Depreciation expense							100	20	10
Revenue	45,843	$ 46,216	$ 46,797	$ 44,900	$ 91,697	$ 137,913	183,756	174,711	108,743
U.S. [Member]
Segment Reporting Information [Line Items]
Property, plant and equipment, net	46,300						46,300	55,100
Revenue							398,170	460,985	517,433
Outside U.S. [Member]
Segment Reporting Information [Line Items]
Property, plant and equipment, net	$ 60,200						60,200	63,100
Customer 1 [Member]
Segment Reporting Information [Line Items]
Revenue							$ 111,800	$ 126,000	$ 106,300
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer 1 [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage							12.10%	10.40%	18.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | The Five Largest Customers Other Than Those With More Than 10% Of Revenues and Excluding Distributors [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage							22.00%	28.00%	33.00%