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Description of Business and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2025
Accounting Policies [Abstract] |
Schedule of Revenue By Category | Revenue consists primarily of two categories: (1) cloud communications and (2) messaging surcharges, which are described and quantified below.
| Year ended December 31,
| 2025 |  | 2024 |  | 2023
| (In thousands)
Cloud communications | $ | 561,379 |  |  | $ | 539,753 |  |  | $ | 478,892 |
Messaging surcharges | 192,438 |  |  | 208,734 |  |  | 122,225 |
Total revenue | $ | 753,817 |  |  | $ | 748,487 |  |  | $ | 601,117 |
Schedule of Receivables and Contract Liabilities From Contracts with Customers | The following table provides information about receivables and contract liabilities from contracts with customers:
| As of December 31,
| 2025 |  | 2024
| (In thousands)
Receivables (1) | $ | 91,409 |  |  | $ | 86,455 |
Contract liabilities (2) | 13,714 |  |  | 14,986 |
________________________ (1) Included in accounts receivable, net of allowances on the consolidated balance sheets. (2) Included in current portion of deferred revenue and deferred revenue, net of current portion on the consolidated balance sheets.
Schedule of Finite Lived Intangible Assets | The useful lives of the Company’s intangible assets as of December 31, 2025 and 2024 are as follows:
Customer relationships | 15 - 20 years
Developed technology | 10 years
Other, definite lived | 2 - 7 years
Licenses, indefinite lived | Indefinite
Intangible assets, net consisted of the following:
| As of December 31,
| 2025 |  | 2024
| Gross Amount |  | Accumulated Amortization |  | Net Carrying Value |  | Gross Amount |  | Accumulated Amortization |  | Net Carrying Value
| (In thousands)
Customer relationships | $ | 154,492 |  |  | $ | (57,344) |  |  | $ | 97,148 |  |  | $ | 145,625 |  |  | $ | (44,754) |  |  | $ | 100,871 |
Developed technology | 84,765 |  |  | (43,795) |  |  | 40,970 |  |  | 75,189 |  |  | (31,329) |  |  | 43,860 |
Other, definite lived | 2,828 |  |  | (2,828) |  |  | — |  |  | 2,828 |  |  | (2,828) |  |  | — |
Licenses, indefinite lived | 624 |  |  | — |  |  | 624 |  |  | 624 |  |  | — |  |  | 624 |
Total intangible assets, net | $ | 242,709 |  |  | $ | (103,967) |  |  | $ | 138,742 |  |  | $ | 224,266 |  |  | $ | (78,911) |  |  | $ | 145,355 |
Schedule of Infinite Lived Intangible Assets | The useful lives of the Company’s intangible assets as of December 31, 2025 and 2024 are as follows:
Customer relationships | 15 - 20 years
Developed technology | 10 years
Other, definite lived | 2 - 7 years
Licenses, indefinite lived | Indefinite
Intangible assets, net consisted of the following:
| As of December 31,
| 2025 |  | 2024
| Gross Amount |  | Accumulated Amortization |  | Net Carrying Value |  | Gross Amount |  | Accumulated Amortization |  | Net Carrying Value
| (In thousands)
Customer relationships | $ | 154,492 |  |  | $ | (57,344) |  |  | $ | 97,148 |  |  | $ | 145,625 |  |  | $ | (44,754) |  |  | $ | 100,871 |
Developed technology | 84,765 |  |  | (43,795) |  |  | 40,970 |  |  | 75,189 |  |  | (31,329) |  |  | 43,860 |
Other, definite lived | 2,828 |  |  | (2,828) |  |  | — |  |  | 2,828 |  |  | (2,828) |  |  | — |
Licenses, indefinite lived | 624 |  |  | — |  |  | 624 |  |  | 624 |  |  | — |  |  | 624 |
Total intangible assets, net | $ | 242,709 |  |  | $ | (103,967) |  |  | $ | 138,742 |  |  | $ | 224,266 |  |  | $ | (78,911) |  |  | $ | 145,355 |

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