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v3.25.3

Revenue (Tables) | 9 Months Ended
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Sep. 30, 2025
Revenue from Contract with Customer [Abstract] |
Disaggregate of Revenue by Reportable Segment and Revenue Category | The following tables disaggregate revenue by reportable segment and revenue category:
|  | Three Months Ended |
|  | September 30, 2025 |  |  | September 30, 2024 |
(In thousands) |  | Network Solutions |  |  | Services & Support |  |  | Total |  |  | Network Solutions |  |  | Services & Support |  |  | Total |
Subscriber Solutions |  | $ | 92,770 |  |  | $ | 8,368 |  |  | $ | 101,138 |  |  | $ | 81,060 |  |  | $ | 9,036 |  |  | $ | 90,096 |
Access & Aggregation Solutions |  |  | 61,051 |  |  |  | 13,757 |  |  |  | 74,808 |  |  |  | 52,954 |  |  |  | 14,119 |  |  |  | 67,073 |
Optical Networking Solutions |  |  | 78,722 |  |  |  | 24,767 |  |  |  | 103,489 |  |  |  | 47,474 |  |  |  | 23,061 |  |  |  | 70,535 |
Total |  | $ | 232,543 |  |  | $ | 46,892 |  |  | $ | 279,435 |  |  | $ | 181,488 |  |  | $ | 46,216 |  |  | $ | 227,704 |
|  | Nine Months Ended |
|  | September 30, 2025 |  |  | September 30, 2024 |
(In thousands) |  | Network Solutions |  |  | Services & Support |  |  | Total |  |  | Network Solutions |  |  | Services & Support |  |  | Total |
Subscriber Solutions |  | $ | 240,055 |  |  | $ | 25,252 |  |  | $ | 265,307 |  |  | $ | 215,044 |  |  | $ | 27,218 |  |  | $ | 242,262 |
Access & Aggregation Solutions |  |  | 214,251 |  |  |  | 40,905 |  |  |  | 255,156 |  |  |  | 174,843 |  |  |  | 43,449 |  |  |  | 218,292 |
Optical Networking Solutions |  |  | 199,952 |  |  |  | 71,832 |  |  |  | 271,784 |  |  |  | 152,068 |  |  |  | 67,246 |  |  |  | 219,314 |
Total |  | $ | 654,258 |  |  | $ | 137,989 |  |  | $ | 792,247 |  |  | $ | 541,955 |  |  | $ | 137,913 |  |  | $ | 679,868 |
Information about Receivable, Contract Assets, and Unearned Revenue from Contracts with Customers | The following table provides information about accounts receivable, contract assets and unearned revenue from contracts with customers:
|  | As of |  |  | As of |
(In thousands) |  | September 30, 2025 |  |  | December 31, 2024 |
Accounts receivable, net |  | $ | 178,621 |  |  | $ | 178,030 |
Contract assets(1) |  | $ | 360 |  |  | $ | 631 |
Unearned revenue |  | $ | 57,563 |  |  | $ | 52,701 |
Non-current unearned revenue |  | $ | 23,196 |  |  | $ | 22,065 |
(1) Included in other receivables.

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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