v3.24.2
CONVERTIBLE PROMISSORY NOTES AND WARRANTS, Convertible notes and warrants (Q1) (Details) - USD ($)
3 Months Ended 12 Months Ended 35 Months Ended
Mar. 26, 2024
Mar. 25, 2024
Mar. 24, 2024
Feb. 08, 2024
Feb. 07, 2024
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2023
Convertible Notes and Warrants [Abstract]                    
Aggregate principal amount           $ 98,258,000   $ 40,700,000   $ 40,700,000
Proceeds from debt under note purchase agreement           $ 47,455,000 $ 0 3,500,000 $ 15,360,000 40,460,000
Digital World Convertible Notes [Member]                    
Convertible Notes and Warrants [Abstract]                    
Conversion of convertible notes in to common stock   $ 8,228,600                
TMTG Convertible Notes [Member]                    
Convertible Notes and Warrants [Abstract]                    
Conversion of convertible notes in to common stock   $ 300,426,000                
Warrant Subscription Agreement [Member] | IPO [Member]                    
Convertible Notes and Warrants [Abstract]                    
Warrants issued (in shares)         3,055,000          
Common Class A [Member] | Warrant Subscription Agreement [Member] | IPO [Member]                    
Convertible Notes and Warrants [Abstract]                    
Number of shares issuable per warrant (in shares)         1          
Exercise price of warrant (in dollars per share)         $ 11.5          
Convertible Promissory Notes and Warrants [Member]                    
Convertible Notes and Warrants [Abstract]                    
Debt instrument interest rate       8.00%            
Number of warrants in a unit       0.5            
Debt instrument, convertible, conversion price (in dollars per share)       $ 8            
Number of redemption right notice days           10 days        
Percentage of redemption price       130.00%            
Number of trading days           3 days        
Number of consecutive trading days           15 days        
Percentage of investors commitment       20.00%            
Percentage of final drawdown of investors commitment       80.00%            
Convertible Promissory Notes and Warrants [Member] | Maximum [Member]                    
Convertible Notes and Warrants [Abstract]                    
Aggregate principal amount       $ 50,000,000            
Convertible Promissory Notes and Warrants [Member] | Common Class A [Member]                    
Convertible Notes and Warrants [Abstract]                    
Number of shares in a unit       1            
Convertible Promissory Note [Member]                    
Convertible Notes and Warrants [Abstract]                    
Aggregate principal amount               $ 40,700,000 $ 38,200,000 $ 40,700,000
Proceeds from debt under note purchase agreement $ 40,000,000   $ 10,000,000              
Debt proceeds held in restricted account $ 40,000,000