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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2023
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. Prior year amounts presented below have been reclassified to conform to the current period revenue category presentation:
|  | Three Months Ended |
|  | September 30, 2023 |  |  | September 30, 2022 |
(In thousands) |  | Network Solutions |  |  | Services & Support |  |  | Total |  |  | Network Solutions |  |  | Services & Support |  |  | Total |
Optical Networking Solutions |  | $ | 94,592 |  |  | $ | 21,608 |  |  | $ | 116,200 |  |  | $ | 103,011 |  |  | $ | 15,834 |  |  | $ | 118,845 |
Access & Aggregation Solutions |  |  | 81,051 |  |  |  | 13,595 |  |  |  | 94,646 |  |  |  | 76,591 |  |  |  | 11,598 |  |  |  | 88,189 |
Subscriber Solutions |  |  | 52,921 |  |  |  | 8,564 |  |  |  | 61,485 |  |  |  | 125,338 |  |  |  | 8,337 |  |  |  | 133,675 |
Total |  | $ | 228,564 |  |  | $ | 43,767 |  |  | $ | 272,331 |  |  | $ | 304,940 |  |  | $ | 35,769 |  |  | $ | 340,709 |
|  | Nine Months Ended |
|  | September 30, 2023 |  |  | September 30, 2022 |
(In thousands) |  | Network Solutions |  |  | Services & Support |  |  | Total |  |  | Network Solutions |  |  | Services & Support |  |  | Total |
Optical Networking Solutions |  | $ | 342,390 |  |  | $ | 64,562 |  |  | $ | 406,952 |  |  | $ | 103,011 |  |  | $ | 15,834 |  |  | $ | 118,845 |
Access & Aggregation Solutions |  |  | 254,868 |  |  |  | 39,315 |  |  |  | 294,183 |  |  |  | 243,396 |  |  |  | 34,877 |  |  |  | 278,273 |
Subscriber Solutions |  |  | 196,726 |  |  |  | 25,760 |  |  |  | 222,486 |  |  |  | 252,899 |  |  |  | 17,248 |  |  |  | 270,147 |
Total |  | $ | 793,984 |  |  | $ | 129,637 |  |  | $ | 923,621 |  |  | $ | 599,306 |  |  | $ | 67,959 |  |  | $ | 667,265 |
The table below presents revenue information by category. Prior year amounts presented below have been reclassified to conform to the current period revenue category presentation:
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
(In thousands) |  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Optical Networking Solutions |  | $ | 116,200 |  |  | $ | 118,845 |  |  | $ | 406,952 |  |  | $ | 118,845 |
Access & Aggregation Solutions |  |  | 94,646 |  |  |  | 88,189 |  |  |  | 294,183 |  |  |  | 278,273 |
Subscriber Solutions |  |  | 61,485 |  |  |  | 133,675 |  |  |  | 222,486 |  |  |  | 270,147 |
Total |  | $ | 272,331 |  |  | $ | 340,709 |  |  | $ | 923,621 |  |  | $ | 667,265 |
Information about Receivables, Contract Assets, and Unearned Revenue from Contracts with Customers | The following table provides information about receivables, contract assets and unearned revenue from contracts with customers:
|  | As of |  |  | As of |
(In thousands) |  | September 30, 2023 |  |  | December 31, 2022 |
Accounts receivable, net |  | $ | 229,333 |  |  | $ | 279,435 |
Contract assets(1) |  | $ | 888 |  |  | $ | 1,852 |
Unearned revenue |  | $ | 49,832 |  |  | $ | 41,193 |
Non-current unearned revenue |  | $ | 23,501 |  |  | $ | 19,239 |
(1) Included in other receivables on the Condensed Consolidated Balance Sheets.

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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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