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Description of Organization and Business Operations (Details) - USD ($)
 1 Months Ended 3 Months Ended 11 Months Ended 12 Months Ended
Jun. 18, 2021
Mar. 31, 2023
Dec. 31, 2021
Dec. 31, 2022
Feb. 10, 2021
Description of Organization and Business Operations (Details) [Line Items]          
Price per public share (in Dollars per share)   $ 10   $ 10  
Generating gross proceeds $ 345,000,000        
Incurring offering costs 19,100,000        
Deferred underwriting commissions 11,700,000   $ 11,721,500  
Offering costs allocated $ 593,000        
Price per warrant (in Dollars per share)   $ 1   $ 1  
Fair market value   80.00%   80.00%  
Common stock ,par value (in Dollars per share)   $ 0.0001   $ 0.0001  
Net tangible assets   $ 5,000,001   $ 5,000,001  
Interest to pay dissolution expenses   $ 100,000   $ 100,000  
Business combination agreement, description   RONI will change its jurisdiction of incorporation by deregistering as a Cayman Islands exempted company and continuing and domesticating as a corporation incorporated under the laws of the State of Delaware, upon which (a) RONI will change its name to “NET Power Inc.” (the “combined company”), (b) each then issued and outstanding Class A ordinary share of a par value $0.0001 each in the capital of RONI will convert automatically, on a one-for-one basis, to a share of Class A common stock, par value $0.0001 per share, of RONI (“Class A Common Stock”), (c) each then issued and outstanding Class B ordinary share of a par value $0.0001 each in the capital of RONI will convert automatically, on a one-for-one basis, to a share of Class B common stock, par value $0.0001 per share, of RONI (“Class B Common Stock”), and (d) each issued and outstanding warrant to purchase one Class A ordinary share in the capital of RONI at a price of $11.50 per share will convert automatically, on a one-for-one basis, into a whole warrant exercisable for one share of Class A Common Stock;   RONI will change its jurisdiction of incorporation by deregistering as a Cayman Islands exempted company and continuing and domesticating as a corporation incorporated under the laws of the State of Delaware, upon which (a) RONI will change its name to “NET Power Inc.” (the “combined company”), (b) each then issued and outstanding Class A ordinary share of a par value $0.0001 each in the capital of RONI will convert automatically, on a one-for-one basis, to a share of Class A common stock, par value $0.0001 per share, of RONI (“Class A Common Stock”), (c) each then issued and outstanding Class B ordinary share of a par value $0.0001 each in the capital of RONI will convert automatically, on a one-for-one basis, to a share of Class B common stock, par value $0.0001 per share, of RONI (“Class B Common Stock”), and (d) each issued and outstanding warrant to purchase one Class A ordinary share in the capital of RONI at a price of $11.50 per share will convert automatically, on a one-for-one basis, into a whole warrant exercisable for one share of Class A Common Stock;  
Aggregate share (in Shares)   137,192,563   135,698,078  
Net tangible assets   $ 5,000,001   $ 5,000,001  
Aggregate amount   200,000,000   200,000,000 $ 26,000
Operating bank account   800,000   1,600,000  
Working capital   4,800,000   3,100,000  
Cover expenses   25,000   25,000  
Sponsor pursuant   $ 126,000   $ 126,000  
Over Allotment Option [Member]          
Description of Organization and Business Operations (Details) [Line Items]          
Initial public offering units (in Shares) 34,500,000        
Price per public share (in Dollars per share) $ 10        
IPO [Member]          
Description of Organization and Business Operations (Details) [Line Items]          
Price per public share (in Dollars per share) $ 10        
Private Placement Warrant [Member]          
Description of Organization and Business Operations (Details) [Line Items]          
Warrants (in Shares)   10,900,000   10,900,000  
Price per warrant (in Dollars per share)   $ 1   $ 1  
Generating proceeds   $ 10,900,000   $ 10,900,000  
Net proceeds   $ 345,026,000   $ 345,026,000  
Class A Ordinary Shares [Member]          
Description of Organization and Business Operations (Details) [Line Items]          
Initial public offering units (in Shares) 4,500,000        
Business Combination [Member]          
Description of Organization and Business Operations (Details) [Line Items]          
Business combination acquires voting securities   50.00%   50.00%