Segment Information (Tables)

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Sales and Gross Profit of Reportable Segments

The following table presents information about the reported sales and gross profit of our reportable segments for the three months ended March 31, 2014 and 2013. Asset information by reportable segment is not reported, since we do not produce such information internally.

	Three Months Ended
	March 31, 2014				March 31, 2013
(In thousands)	Sales		Gross Profit		Sales		Gross Profit
Carrier Networks	$	118,162	$	61,353	$	109,887	$	51,591
Enterprise Networks		28,842		16,437		33,126		18,086
Total	$	147,004	$	77,790	$	143,013	$	69,677

Sales Information by Product Category

The table below presents sales information by product category for the three months ended March 31, 2014 and 2013:

	Three Months Ended March 31,
(In thousands)	2014		2013
Carrier Systems	$	99,553	$	92,804
Business Networking		37,919		38,076
Loop Access		9,532		12,133
Total	$	147,004	$	143,013

Subcategory Revenues

The table below presents subcategory revenues for the three months ended March 31, 2014 and 2013:

	Three Months Ended March 31,
(In thousands)	2014		2013
Core Products
Broadband Access (included in Carrier Systems)	$	81,527	$	72,234
Optical (included in Carrier Systems)		12,789		8,874
Internetworking (included in Business Networking)		36,946		36,912
Subtotal		131,262		118,020
Legacy Products
HDSL (does not include T1) (included in Loop Access)		8,877		11,407
Other products (excluding HDSL)		6,865		13,586
Subtotal		15,742		24,993
Total	$	147,004	$	143,013