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Revenue
 3 Months Ended
Mar. 31, 2021
Revenue From Contract With Customer [Abstract]  
Revenue

3. REVENUE

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

Network Solutions Segment - 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 Segment - Includes maintenance, network implementation, solutions integration and managed services, which include hosted cloud services and subscription services.    

See Note 17 for additional information on reportable segments.

Revenue by Category

 

In addition to our reporting 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 Three Months Ended

 

 

 

March 31, 2021

 

 

March 31, 2020

 

(In thousands)

 

Network Solutions

 

 

Services & Support

 

 

Total

 

 

Network Solutions

 

 

Services & Support

 

 

Total

 

Access & Aggregation

 

$

60,053

 

 

$

9,021

 

 

$

69,074

 

 

$

53,055

 

 

$

12,911

 

 

$

65,966

 

Subscriber Solutions & Experience

 

 

52,269

 

 

 

2,300

 

 

 

54,569

 

 

 

39,983

 

 

 

2,196

 

 

 

42,179

 

Traditional & Other Products

 

 

1,487

 

 

 

2,403

 

 

 

3,890

 

 

 

4,334

 

 

 

2,044

 

 

 

6,378

 

Total

 

$

113,809

 

 

$

13,724

 

 

$

127,533

 

 

$

97,372

 

 

$

17,151

 

 

$

114,523

 

 

Revenue allocated to remaining performance obligations represents contract revenue that have not yet been recognized for contracts with a duration greater than one year. As of March 31, 2021, 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 $19.0 million and $17.7 million as of March 31, 2021 and December 31, 2020, respectively. The Company expects to recognize 63% of the $19.0 million as of March 31, 2021 over the next 12 months with the remainder to be recognized thereafter.

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

 

(In thousands)

 

As of March 31, 2021

 

 

As of December 31, 2020

 

Accounts receivable, net

 

$

103,201

 

 

$

98,827

 

Contract assets(1)

 

$

906

 

 

$

63

 

Unearned revenue

 

$

14,457

 

 

$

14,092

 

Non-current unearned revenue

 

$

7,040

 

 

$

6,888

 

 

 

(1)

Included in other receivables on the Condensed Consolidated Balance Sheets.

 

Of the outstanding unearned revenue balances as of December 31, 2020, $5.0 million was recognized as revenue during the three months ended March 31, 2021.