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Description of Business and Summary of Significant Accounting Policies - Schedule of Revenue By Category (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenue from External Customer [Line Items]
Total revenue	$ 753,817	$ 748,487	$ 601,117
Cloud communications
Revenue from External Customer [Line Items]
Total revenue	561,379	539,753	478,892
Messaging surcharges
Revenue from External Customer [Line Items]
Total revenue	$ 192,438	$ 208,734	$ 122,225

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