Segments (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Financial Information Attributable to the Company's Business Segments

The following table sets forth certain financial information from continuing operations attributable to the Company’s business segments for the years ended December 31, 2019, 2018 and 2017.

	Year Ended December 31, 2019
	NET Services		Matrix Investment		Total
Service revenue, net	$	1,509,944	$	—	$	1,509,944
Service expense	1,401,152		—		1,401,152
General and administrative expense	67,244		—		67,244
Depreciation and amortization	16,816		—		16,816
Operating income	$	24,732	$	—	$	24,732
Equity in net loss of investee	$	—	$	29,685	$	29,685
Investment in equity method investee	$	—	$	130,869	$	130,869
Total assets	$	466,357	$	130,869	$	597,226

	Year Ended December 31, 2018
	NET Services		Matrix Investment		Total
Service revenue, net	$	1,384,965	$	—	$	1,384,965
Service expense	1,253,608		—		1,253,608
General and administrative expense	77,093		—		77,093
Asset impairment charge	14,175		—		14,175
Depreciation and amortization	15,813		—		15,813
Operating income	$	24,276	$	—	$	24,276
Equity in net loss of investee	$	—	$	6,158	$	6,158
Investment in equity method investee	$	—	$	161,503	$	161,503
Total assets	$	401,091	$	161,503	$	562,594

	Year Ended December 31, 2017
	NET Services		Matrix Investment		Total
Service revenue, net	$	1,318,220	$	—	$	1,318,220
Service expense	1,197,211		—		1,197,211
General and administrative expense	69,907		—		69,907
Depreciation and amortization	13,618		—		13,618
Operating income	$	37,484	$	—	$	37,484
Equity in net gain of investee	$	—	$	(13,445)	$	(13,445)
Investment in equity method investee	$	—	$	169,699	$	169,699
Total assets	$	356,539	$	169,699	$	526,238