Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
	Apr. 02, 2021	Dec. 31, 2020	Oct. 31, 2020
Shareholders' Equity (Details) [Line Items]
Public warrants outstanding	20,000,000
Aggregate purchase of shares	3,750,000
Non-controlling interest, description	As of April 2, 2021 and December 31, 2020, the Company ownership and voting structure was comprised of holders of our Class A common stock that participate 100% in the results of Atlas Technical Consultants, Inc. and 43.0% and 36.4%, respectively, in Atlas Intermediate and its subsidiaries and holders of our Class B common stock that participate in the results of Atlas Intermediate and its subsidiaries until their Class B common stock is converted to Class A common stock.
Common stock participate non-controlling interest percentage	57.00%	63.60%
Private Placement Warrants [Member]
Shareholders' Equity (Details) [Line Items]
Warrants outstanding per share (in Dollars per share)	$ 1.00
Description of warrants for redemption	The Private Placement Warrants were identical to the Public Warrants discussed above, except (i) they would not be redeemable by the Company so long as they are held by the Sponsor and (ii) they may be exercisable by the holders on a cashless basis.
Class A Common Stock [Member]
Shareholders' Equity (Details) [Line Items]
Common stock, issued	15,156,643
Common stock, outstanding		12,841,584
Description of voting rights of common stock	Holders of the Company’s Class A common stock are entitled to one vote for each share.
Common stock, authorized	400,000,000
Common stock, par value (in Dollars per share)	$ 0.0001	$ 0.0001	$ 0.0001
Warrants, description	Each holder was set to receive 0.1665 or 0.185 shares of Class A common stock in exchange for each outstanding warrant tendered by the holder and exchanged pursuant to the terms of the offer. The redemption rate was dependent upon whether the warrant holder tendered their warrants prior to the offer deadline. Warrant holders who tendered their warrants for exchange prior to the expiration of the tender offer period received the 0.185 conversion rate, and any warrant holders who did not tender their warrants by the appropriate deadline received the 0.1665 conversion rate.
Class A Common Stock [Member] | Private Placement Warrants [Member]
Shareholders' Equity (Details) [Line Items]
Warrants outstanding per share (in Dollars per share)	$ 11.50
Private placement shares	1,000,000
Private placement per shares (in Dollars per share)	$ 10.23
Aggregate consideration private placement (in Dollars)	$ 10.2
Class A Common Stock [Member] | Public Warrants [Member]
Shareholders' Equity (Details) [Line Items]
Description of voting rights of common stock	Public Warrants – In November 2018, the Company consummated its initial public offering of units, each consisting of one share of Class A common stock and one-half of one warrant (“Public Warrant”).
Warrants outstanding per share (in Dollars per share)	$ 11.50
Description of warrants for redemption	The Public Warrants were set to expire five years after the closing of the Atlas Business Combination or earlier upon redemption or liquidation. The Company had the ability to call the Public Warrants for redemption, in whole and not in part, at a price of $0.01 per warrant with not less than 30 days’ notice provided to the Public Warrant holders. However, this redemption right could only be exercised if the last sale price of the Class A common stock equaled or exceeded $18.00 per share for any 20 trading days within a 30-day trading period ending three business days before we send the notice of redemption to the Public Warrant holders.
Class B Common Stock [Member]
Shareholders' Equity (Details) [Line Items]
Common stock, issued	20,769,123	22,438,828
Description of voting rights of common stock	Class B common stock was issued to the holders of Holdings Units in Atlas Intermediate in connection with the Atlas Business Combination and are non-economic but entitle the holder to one vote per share.
Common stock, authorized	20,123,769
Common stock, par value (in Dollars per share)	$ 0.0001	$ 0.0001