CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Net (loss) income	$ (18,729)	$ 3,072	$ (33,507)	$ 1,612
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	5	2	(27)	1
Less:  Comprehensive income attributable to non-controlling interest	0	(2,806)	0	(3,590)
Comprehensive (loss) income attributable to Telos Corporation	$ (18,724)	$ 268	$ (33,534)	$ (1,977)