Selected Income Statement Information Selected Income Statement Information (Notes)

12 Months Ended

Dec. 31, 2016

SELECTED INCOME STATEMENT INFORMATION

The following schedule shows our revenue, costs and gross margins by services and products:



	Year Ended December 31,
(in thousands)	2016			2015			2014
Revenue:
Services	$	1,509,786		$	2,001,167		$	2,336,304
Products	761,817			1,061,587			1,323,320
Total revenue	2,271,603			3,062,754			3,659,624
Cost of Services and Products:
Services	1,330,218			1,585,305			1,742,411
Products	615,438			800,316			946,923
Unallocated expenses	46,720			71,704			111,089
Total cost of services and products	1,992,376			2,457,325			2,800,423
Gross margin:
Services	179,568			415,862			593,893
Products	146,379			261,271			376,397
Unallocated expenses	(46,720		)	(71,704		)	(111,089		)
Total gross margin	$	279,227		$	605,429		$	859,201