CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Net (loss) income	$ (5,387)	$ 2,494	$ (38,894)	$ 4,106
Other comprehensive loss, net of tax:
Foreign currency translation adjustments	(13)	(2)	(40)	(1)
Less:  Comprehensive income attributable to non-controlling interest	0	(2,694)	0	(6,284)
Comprehensive loss attributable to Telos Corporation	$ (5,400)	$ (202)	$ (38,934)	$ (2,179)