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Segment Information and Major Customers (Tables)

12 Months Ended

Dec. 31, 2020

Segment Reporting [Abstract]

Sales and Gross Profit of Reportable Segments

The following table presents information about revenue and gross profit of our reportable segments for each of the years ended December 31, 2020, 2019 and 2018:

		2020								2019								2018
(In thousands)		Revenue				Gross Profit				Revenue				Gross Profit				Revenue				Gross Profit
Network Solutions		$	438,015			$	193,789			$	455,226			$	191,549			$	458,232			$	179,303
Services & Support			68,495				23,762				74,835				27,618				71,045				24,262
Total		$	506,510			$	217,551			$	530,061			$	219,167			$	529,277			$	203,565

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, 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

The following tables disaggregate our revenue by category for the years ended December 31, 2020, 2019 and 2018:

		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

		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

		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

Sales Information by Geographic Area

The following table presents revenue information by geographic area for the years ended December 31, 2020, 2019 and 2018:

(In thousands)		2020				2019				2018
United States		$	352,079			$	300,853			$	288,843
Germany			74,882				78,062				167,251
Mexico			4,087				90,795				12,186
Other international			75,462				60,351				60,997
Total		$	506,510			$	530,061			$	529,277

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Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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