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Summary of Significant Accounting Policies - Schedule of Revenue By Category (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue from External Customer [Line Items]
Total revenue	$ 748,487	$ 601,117	$ 573,152
Cloud communications
Revenue from External Customer [Line Items]
Total revenue	539,753	478,892	474,576
Messaging surcharges
Revenue from External Customer [Line Items]
Total revenue	$ 208,734	$ 122,225	$ 98,576

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