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Segment Information and Major Customers (Tables) | 12 Months Ended
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Dec. 31, 2023
Segment Reporting [Abstract] |
Revenue and Gross Profit of Reportable Segments | The following table presents information about revenue and gross profit of our reportable segments for each of the years ended December 31, 2023, 2022 and 2021:
|  | 2023 |  |  | 2022 |  |  | 2021 |
(In thousands) |  | Revenue |  |  | Gross Profit |  |  | Revenue |  |  | Gross Profit |  |  | Revenue |  |  | Gross Profit |
Network Solutions |  | $ | 974,389 |  |  | $ | 227,494 |  |  | $ | 916,793 |  |  | $ | 269,688 |  |  | $ | 498,834 |  |  | $ | 190,993 |
Services & Support |  |  | 174,711 |  |  |  | 105,569 |  |  |  | 108,743 |  |  |  | 57,564 |  |  |  | 64,170 |  |  |  | 27,384 |
Total |  | $ | 1,149,100 |  |  | $ | 333,063 |  |  | $ | 1,025,536 |  |  | $ | 327,252 |  |  | $ | 563,004 |  |  | $ | 218,377 |
Disaggregate of Revenue by Reportable Segment and Revenue Category | The following tables disaggregate our revenue by category for the years ended December 31, 2023, 2022 and 2021:
|  | 2023 |
(In thousands) |  | Network Solutions |  |  | Services & Support |  |  | Total |
Subscriber Solutions |  | $ | 263,192 |  |  | $ | 34,516 |  |  | $ | 297,708 |
Access & Aggregation Solutions |  |  | 304,074 |  |  |  | 54,344 |  |  |  | 358,418 |
Optical Networking Solutions |  |  | 407,123 |  |  |  | 85,851 |  |  |  | 492,974 |
Total |  | $ | 974,389 |  |  | $ | 174,711 |  |  | $ | 1,149,100 |
|  | 2022 |
(In thousands) |  | Network Solutions |  |  | Services & Support |  |  | Total |
Subscriber Solutions |  | $ | 364,238 |  |  | $ | 26,216 |  |  | $ | 390,454 |
Access & Aggregation Solutions |  |  | 326,934 |  |  |  | 47,068 |  |  |  | 374,002 |
Optical Networking Solutions |  |  | 225,621 |  |  |  | 35,459 |  |  |  | 261,080 |
Total |  | $ | 916,793 |  |  | $ | 108,743 |  |  | $ | 1,025,536 |
|  | 2021 |
(In thousands) |  | Network Solutions |  |  | Services & Support |  |  | Total |
Subscriber Solutions |  | $ | 189,825 |  |  | $ | 16,385 |  |  | $ | 206,210 |
Access & Aggregation Solutions |  |  | 309,009 |  |  |  | 47,785 |  |  |  | 356,794 |
Optical Networking Solutions |  |  | — |  |  |  | — |  |  |  | — |
Total |  | $ | 498,834 |  |  | $ | 64,170 |  |  | $ | 563,004 |
Revenue Information by Geographic Area | The following table presents revenue information by geographic area for the years ended December 31, 2023, 2022 and 2021:
(In thousands) |  | 2023 |  |  | 2022 |  |  | 2021 |
United States |  | $ | 460,985 |  |  | $ | 517,433 |  |  | $ | 374,600 |
United Kingdom |  |  | 214,655 |  |  |  | 189,685 |  |  |  | 56,355 |
Germany |  |  | 230,922 |  |  |  | 146,797 |  |  |  | 65,229 |
Other international |  |  | 242,538 |  |  |  | 171,621 |  |  |  | 66,820 |
Total |  | $ | 1,149,100 |  |  | $ | 1,025,536 |  |  | $ | 563,004 |

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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-41 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482573/350-20-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-25 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-22 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-30 + Details
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