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Summary of Significant Accounting Policies - Schedule of Revenue Disaggregated by Revenue Type, Geographic Region and Customer (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Disaggregation Of Revenue [Line Items]
Total revenue	$ 313,732	$ 299,453
Percentage of total revenue	100.00%	100.00%
Broadband/Cable/Satellite
Disaggregation Of Revenue [Line Items]
Percentage of total revenue	48.00%	50.00%
Telecommunications
Disaggregation Of Revenue [Line Items]
Percentage of total revenue	17.00%	17.00%
Other
Disaggregation Of Revenue [Line Items]
Percentage of total revenue	35.00%	33.00%
Americas (principally the U.S.)
Disaggregation Of Revenue [Line Items]
Percentage of total revenue	86.00%	87.00%
Europe, Middle East and Africa
Disaggregation Of Revenue [Line Items]
Percentage of total revenue	9.00%	9.00%
Asia Pacific
Disaggregation Of Revenue [Line Items]
Percentage of total revenue	5.00%	4.00%
SaaS and Related Solutions
Disaggregation Of Revenue [Line Items]
Total revenue	$ 286,870	$ 269,940
Software and Services
Disaggregation Of Revenue [Line Items]
Total revenue	15,005	18,623
Maintenance
Disaggregation Of Revenue [Line Items]
Total revenue	$ 11,857	$ 10,890

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