CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue
Revenue	$ 52,559	$ 48,610	$ 108,317	$ 87,589
Costs and expenses
Total costs and expenses	32,002	31,037	73,402	57,774
Selling, general and administrative expenses
Sales and marketing	5,043	1,473	8,869	3,065
Research and development	5,327	3,815	9,388	7,472
General and administrative	28,743	7,219	48,708	13,809
Selling, general and administrative expenses	39,113	12,507	66,965	24,346
Operating (loss) income	(18,556)	5,066	(32,050)	5,469
Other income (expense)
Other income (expense)	32	4	(1,022)	12
Interest expense	(192)	(1,996)	(388)	(4,013)
(Loss) income before income taxes	(18,716)	3,074	(33,460)	1,468
(Provision for) benefit from income taxes	(13)	(2)	(47)	144
Net (loss) income	(18,729)	3,072	(33,507)	1,612
Less: Net income attributable to non-controlling interest	0	(2,806)	0	(3,590)
Net (loss) income attributable to Telos Corporation	$ (18,729)	$ 266	$ (33,507)	$ (1,978)
Net (loss) income per share attributable to Telos Corporation, basic (in dollars per share)	$ (0.28)	$ 0.01	$ (0.51)	$ (0.05)
Net (loss) income per share attributable to Telos Corporation, diluted (in dollars per share)	$ (0.28)	$ 0.01	$ (0.51)	$ (0.05)
Weighted-average shares of common stock outstanding, basic (in dollars per share)	66,616	38,583	65,621	38,328
Weighted-average shares of common stock outstanding, diluted (in dollars per share)	66,616	39,927	65,621	38,328
Services
Revenue
Revenue	$ 47,618	$ 45,486	$ 99,676	$ 80,044
Costs and expenses
Total costs and expenses	29,501	29,378	69,103	54,243
Products
Revenue
Revenue	4,941	3,124	8,641	7,545
Costs and expenses
Total costs and expenses	$ 2,501	$ 1,659	$ 4,299	$ 3,531