Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2020	May 11, 2020
Document Information Line Items
Entity Registrant Name	ATLAS TECHNICAL CONSULTANTS, INC.
Trading Symbol	ATCX
Document Type	10-Q/A
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		29,741,710
Amendment Flag	true
Amendment Description	This Amendment No. 1 on Form 10-Q/A (the “Amendment”) amends the Quarterly Report on Form 10-Q for the period ended March 31, 2020 of Atlas Technical Consultants, Inc. (the “Company”), which was filed with the Securities and Exchange Commission on May 11, 2020 (the “Original Filing”). This Amendment is being filed solely to amend the certifications pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 appended as Exhibits 31.1 and 31.2. Specifically, the Company is refiling these certifications solely to include the introductory language of paragraph 4 and the language of paragraph 4(b) referring to internal control over financial reporting, which language was inadvertently omitted from the Company’s certifications in the Original Filing. This Amendment does not alter or affect any other part or any other information originally set forth in the Original Filing. This Amendment does not reflect events that have occurred subsequent to the filing of the Original Filing or modify or update in any way disclosures made in the Original Filing.
Entity Central Index Key	0001751143
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Document Period End Date	Mar. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Shell Company	false
Entity Ex Transition Period	false
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	001-38745
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-0808563
Entity Address, Address Line One	13215 Bee Cave Parkway,
Entity Address, Address Line Two	Building B,
Entity Address, Address Line Three	Suite 230,
Entity Address, City or Town	Austin
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	78738
City Area Code	(512)
Local Phone Number	851-1501
Title of 12(b) Security	Class A common stock, $0.0001 par value per share
Security Exchange Name	NASDAQ
Entity Interactive Data Current	Yes