Revenue (Tables)

12 Months Ended

Dec. 31, 2023

Revenue from Contract with Customer [Abstract]

Disaggregate of Revenue by Reportable Segment and Revenue Category

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

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

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

Information about Receivable, Contract Assets, and Unearned Revenue from Contracts with Customers

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

(In thousands)	December 31, 2023		December 31, 2022
Accounts receivable	$	216,445	$	279,435
Contract assets(1)	$	691	$	1,852
Unearned revenue	$	46,731	$	41,193
Non-current unearned revenue	$	25,109	$	19,239

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