Segment Information

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Segment Information

14. Segment Information

Our four reportable operating segments - Commercial, Public Sector, Canada and United Kingdom - are primarily aligned based upon our reporting of results as used by our chief operating decision maker in evaluating the operating results and performance of our company. We include corporate related expenses such as legal, accounting, information technology, product management and certain other administrative costs that are not otherwise included in our reportable operating segments in Corporate & Other. We allocate our resources to and evaluate the performance of our segments based on operating income. For more information on our reportable operating segments, see Note 1 above.

Summarized segment information for our continuing operations is as follows for the periods presented (in thousands):

	Commercial		Public Sector		Canada		United Kingdom			Corporate & Other			Consolidated
Year Ended December 31, 2018
Net sales	$	1,647,431	$	258,945	$	195,846	$	62,359		$	(621	)	$	2,163,960
Gross profit		268,554		32,749		30,835		12,419			(615	)		343,942
Depreciation and amortization expense(1)		5,133		527		1,013		297			6,470			13,440
Operating profit (loss)		94,516		9,770		4,580		(1,963	)		(66,157	)		40,746
Year Ended December 31, 2017
Net sales	$	1,709,249	$	274,650	$	171,208	$	12,235		$	(455	)	$	2,166,887
Gross profit		261,376		33,676		28,060		2,064			(448	)		324,728
Depreciation and amortization expense(1)		5,683		829		1,090		48			6,531			14,181
Operating profit (loss)		75,284		8,885		423		(5,205	)		(68,759	)		10,628
Year Ended December 31, 2016
Net sales	$	1,737,830	$	351,617	$	150,193	$	—		$	(83	)	$	2,239,557
Gross profit		259,228		35,946		23,838		—			(85	)		318,927
Depreciation and amortization expense(1)		6,491		1,162		1,320		—			6,811			15,784
Operating profit (loss)		81,429		14,064		3,994		—			(64,586	)		34,901

(1) Primary fixed assets relating to network and servers are managed by the Corporate headquarters. As such, depreciation expense relating to such assets is included as part of Corporate & Other.

As of December 31, 2018 and 2017, we had total consolidated assets of $721.0 million and $740.3 million, respectively. Our management does not have available to them and does not use total assets measured at the segment level in allocating resources. Therefore, such information relating to segment assets is not provided herein.

Sales of our products and services are made to customers primarily within the U.S. and Canada and other foreign countries. During the years ended December 31, 2018, 2017 and 2016, approximately 10%, 8% and 6%, respectively, of our gross billed sales were made to customers outside of the continental U.S. No single customer accounted for more than 10% of our gross billed sales in each of the years ended December 31, 2018, 2017 and 2016.

Our property and equipment, net, were located in the following countries as of the periods presented (in thousands):

	At December 31,
Location:	2018		2017
U.S.	$	65,009	$	66,736
Canada		2,528		2,776
United Kingdom		1,571		1,716
Philippines		166		323
Other		12		—
Property and equipment, net	$	69,286	$	71,551