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Revenue
 9 Months Ended
Sep. 30, 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.

Revenue by Category

 

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

 

The following tables disaggregate revenue by reportable segment and revenue category:

 

 

 

Three Months Ended

 

 

 

September 30, 2021

 

 

September 30, 2020

 

(In thousands)

 

Network Solutions

 

 

Services & Support

 

 

Total

 

 

Network Solutions

 

 

Services & Support

 

 

Total

 

Access & Aggregation

 

$

77,104

 

 

$

12,069

 

 

$

89,173

 

 

$

71,919

 

 

$

13,504

 

 

$

85,423

 

Subscriber Solutions & Experience

 

 

42,093

 

 

 

2,819

 

 

 

44,912

 

 

 

40,843

 

 

 

2,282

 

 

 

43,125

 

Traditional & Other Products

 

 

1,570

 

 

 

2,426

 

 

 

3,996

 

 

 

2,467

 

 

 

2,128

 

 

 

4,595

 

Total

 

$

120,767

 

 

$

17,314

 

 

$

138,081

 

 

$

115,229

 

 

$

17,914

 

 

$

133,143

 

 

 

 

Nine Months Ended

 

 

 

September 30, 2021

 

 

September 30, 2020

 

(In thousands)

 

Network Solutions

 

 

Services & Support

 

 

Total

 

 

Network Solutions

 

 

Services & Support

 

 

Total

 

Access & Aggregation

 

$

215,464

 

 

$

33,747

 

 

$

249,211

 

 

$

194,695

 

 

$

39,470

 

 

$

234,165

 

Subscriber Solutions & Experience

 

 

139,459

 

 

 

7,832

 

 

 

147,291

 

 

 

118,907

 

 

 

6,790

 

 

 

125,697

 

Traditional & Other Products

 

 

5,102

 

 

 

7,242

 

 

 

12,344

 

 

 

10,322

 

 

 

6,197

 

 

 

16,519

 

Total

 

$

360,025

 

 

$

48,821

 

 

$

408,846

 

 

$

323,924

 

 

$

52,457

 

 

$

376,381

 

 

Revenue allocated to remaining performance obligations represents contract revenue that has not yet been recognized for contracts with a duration of greater than one year. As of September 30, 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 that we are entitled to invoice, which correspond to the value of completed performance obligations to date. The amount related to these performance obligations was $20.7 million and $17.7 million as of September 30, 2021 and December 31, 2020, respectively. The Company expects to recognize 64% of the $20.7 million as of September 30, 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:

 

 

 

As of

 

 

As of

 

(In thousands)

 

September 30, 2021

 

 

December 31, 2020

 

Accounts receivable, net

 

$

124,146

 

 

$

98,827

 

Contract assets(1)

 

$

999

 

 

$

63

 

Unearned revenue

 

$

16,394

 

 

$

14,092

 

Non-current unearned revenue

 

$

7,426

 

 

$

6,888

 

 

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

 

Of the outstanding unearned revenue balances as of December 31, 2020, $2.0 million and $9.8 million were recognized as revenue during the three and nine months ended September 30, 2021, respectively.