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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2024
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,
202420232022
(In thousands)
Cloud communications$539,753 $478,892 $474,576 
Messaging surcharges208,734 122,225 98,576 
Total revenue$748,487 $601,117 $573,152 
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,
20242023
(In thousands)
Receivables (1)
$86,455 $78,155 
Contract liabilities (2)
14,986 16,465 
________________________
(1) Included in accounts receivable, net of allowance for doubtful accounts 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, 2024 and 2023 are as follows:
Customer relationships
15 - 20 years
Developed technology
10 years
Other, definite lived
2 - 7 years
Licenses, indefinite livedIndefinite
Intangible assets, net consisted of the following:
As of December 31,
20242023
Gross
Amount		Accumulated
Amortization		Net Carrying
Value		Gross
Amount		Accumulated
Amortization		Net Carrying
Value
(In thousands)
Customer relationships$145,625 $(44,754)$100,871 $147,426 $(35,599)$111,827 
Developed technology75,189 (31,329)43,860 79,702 (25,239)54,463 
Other, definite lived2,828 (2,828)— 2,828 (2,828)— 
Licenses, indefinite lived624 — 624 624 — 624 
Total intangible assets, net$224,266 $(78,911)$145,355 $230,580 $(63,666)$166,914 
Schedule of Infinite Lived Intangible Assets The useful lives of the Company’s intangible assets as of December 31, 2024 and 2023 are as follows:
Customer relationships
15 - 20 years
Developed technology
10 years
Other, definite lived
2 - 7 years
Licenses, indefinite livedIndefinite
Intangible assets, net consisted of the following:
As of December 31,
20242023
Gross
Amount		Accumulated
Amortization		Net Carrying
Value		Gross
Amount		Accumulated
Amortization		Net Carrying
Value
(In thousands)
Customer relationships$145,625 $(44,754)$100,871 $147,426 $(35,599)$111,827 
Developed technology75,189 (31,329)43,860 79,702 (25,239)54,463 
Other, definite lived2,828 (2,828)— 2,828 (2,828)— 
Licenses, indefinite lived624 — 624 624 — 624 
Total intangible assets, net$224,266 $(78,911)$145,355 $230,580 $(63,666)$166,914