Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Error Corrections and Prior Period Adjustments (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Condensed Consolidated Statement of Operations
Total costs and expenses	$ 31,289	$ 41,288
General and administrative	22,923	20,076
Selling, general and administrative expenses	33,605	27,963
Condensed Consolidated Statement of Cash Flows
Changes in other operating assets and liabilities	(502)	(7,148)
Cash used in operating activities	249	(6,882)
Distribution to Telos ID Class B member - non-controlling interest	0	(2,436)
Cash used in financing activities	(3,237)	(2,757)
Products And Services
Condensed Consolidated Statement of Operations
Total costs and expenses		41,288
Services
Condensed Consolidated Statement of Operations
Total costs and expenses	$ 29,731	39,490
Previously Reported
Condensed Consolidated Statement of Operations
General and administrative		19,964
Selling, general and administrative expenses		27,851
Condensed Consolidated Statement of Cash Flows
Changes in other operating assets and liabilities		(9,584)
Cash used in operating activities		(9,318)
Distribution to Telos ID Class B member - non-controlling interest		0
Cash used in financing activities		(321)
Previously Reported \| Products And Services
Condensed Consolidated Statement of Operations
Total costs and expenses		41,400
Previously Reported \| Services
Condensed Consolidated Statement of Operations
Total costs and expenses		39,602
Error Correction
Condensed Consolidated Statement of Operations
General and administrative		112
Selling, general and administrative expenses		112
Condensed Consolidated Statement of Cash Flows
Changes in other operating assets and liabilities		2,436
Cash used in operating activities		2,436
Distribution to Telos ID Class B member - non-controlling interest		(2,436)
Cash used in financing activities		(2,436)
Error Correction \| Products And Services
Condensed Consolidated Statement of Operations
Total costs and expenses		(112)
Error Correction \| Services
Condensed Consolidated Statement of Operations
Total costs and expenses		$ (112)

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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