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Revenue (Tables) | 3 Months Ended
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Mar. 31, 2018
Revenue From Contract With Customer [Abstract] |
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:
(In thousands) |  | March 31, 2018 |  |  | December 31, 2017 |
Accounts receivable |  | $ | 80,883 |  |  | $ | 144,150 |
Contract assets |  |  | 1,442 |  |  |  | — |
Unearned revenue |  |  | 13,948 |  |  |  | 13,070 |
Non-current unearned revenue |  |  | 4,154 |  |  |  | 4,556 |
Disaggregate of Revenue by Major Source | During the three months ended March 31, 2018, we recognized $3.5 million of revenue that was included in unearned revenue at the beginning of the period. The following table disaggregates our revenue by major source:
(In thousands) |  | Network Solutions |  |  | Services & Support |  |  | Total |
Access & Aggregation |  | $ | 69,385 |  |  | $ | 12,295 |  |  | $ | 81,680 |
Customer Devices |  |  | 28,777 |  |  |  | 1,324 |  |  |  | 30,101 |
Traditional & Other Products |  |  | 7,091 |  |  |  | 1,934 |  |  |  | 9,025 |
Total |  | $ | 105,253 |  |  | $ | 15,553 |  |  | $ | 120,806 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130551-203045 + 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/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045 + Details
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