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Revenue
 12 Months Ended
Dec. 31, 2020
Revenue From Contract With Customer [Abstract]  
Revenue

Note 4 - Revenue

The following is a description of the principal activities from which revenue is generated by reportable segment:

Network Solutions - Includes hardware products and software-defined next-generation virtualized solutions used in service provider or business networks, as well as prior generation products.

Services & Support - Includes maintenance, network implementation, solutions integration and managed services, which include hosted cloud services and subscription services.    

Revenue by Category

 

In addition to reportable segments, revenue is also reported for the following three categories – Access & Aggregation, Subscriber Solutions & Experience and Traditional & Other Products.  

 

The following table disaggregates revenue by reportable segment and revenue category for the year ended December 31, 2020:

 

(In thousands)

 

Network Solutions

 

 

Services & Support

 

 

Total

 

Access & Aggregation

 

$

262,578

 

 

$

50,560

 

 

$

313,138

 

Subscriber Solutions & Experience

 

 

161,824

 

 

 

9,263

 

 

 

171,087

 

Traditional & Other Products

 

 

13,613

 

 

 

8,672

 

 

 

22,285

 

Total

 

$

438,015

 

 

$

68,495

 

 

$

506,510

 

 

The following table disaggregates revenue by reportable segment and revenue category for the year ended December 31, 2019:

 

(In thousands)

 

Network Solutions

 

 

Services & Support

 

 

Total

 

Access & Aggregation

 

$

289,980

 

 

$

58,894

 

 

$

348,874

 

Subscriber Solutions & Experience

 

 

144,651

 

 

 

8,269

 

 

 

152,920

 

Traditional & Other Products

 

 

20,595

 

 

 

7,672

 

 

 

28,267

 

Total

 

$

455,226

 

 

$

74,835

 

 

$

530,061

 

 

The following table disaggregates revenue by reportable segment and revenue category for the year ended December 31, 2018:

 

(In thousands)

 

Network Solutions

 

 

Services & Support

 

 

Total

 

Access & Aggregation

 

$

301,801

 

 

$

57,069

 

 

$

358,870

 

Subscriber Solutions & Experience

 

 

129,067

 

 

 

5,393

 

 

 

134,460

 

Traditional & Other Products

 

 

27,364

 

 

 

8,583

 

 

 

35,947

 

Total

 

$

458,232

 

 

$

71,045

 

 

$

529,277

 

 

Revenue allocated to remaining performance obligations represents contract revenues that have not yet been recognized for contracts with a duration greater than one year. As of December 31, 2020, we did not have any significant performance obligations related to customer contracts that had an original expected duration of one year or more, other than maintenance services, which are satisfied over time. As a practical expedient, for certain contracts we recognize revenue equal to the amounts we are entitled to invoice, which correspond to the value of completed performance obligations to date. The amount related to these performance obligations was $17.7 million and $13.6 million as of December 31, 2020 and December 31, 2019, respectively. The Company expects to recognize 61% of the $17.7 million as of December 31, 2020 over the next 12 months, with the remainder to be recognized thereafter.

 

 

The following table provides information about accounts receivable, contract assets and unearned revenue from contracts with customers:

 

(In thousands)

 

December 31, 2020

 

 

December 31, 2019

 

Accounts receivable

 

$

98,827

 

 

$

90,531

 

Contract assets(1)

 

$

63

 

 

$

2,812

 

Unearned revenue

 

$

14,092

 

 

$

11,963

 

Non-current unearned revenue

 

$

6,888

 

 

$

6,012

 

(1) Included in other receivables on the Consolidated Balance Sheets.

Of the outstanding unearned revenue balance as of December 31, 2019 and December 31, 2018, $11.0 million and $12.7 million were recognized as revenue during the years ended December 31, 2020 and 2019, respectively.