General form of registration statement for all companies including face-amount certificate companies

COMMITMENTS (Details)

v3.21.1
COMMITMENTS (Details)
1 Months Ended 3 Months Ended 7 Months Ended 12 Months Ended
Dec. 14, 2020
USD ($)
$ / shares
shares
Sep. 17, 2019
USD ($)
$ / shares
shares
May 31, 2019
shares
Mar. 31, 2021
$ / shares
shares
Dec. 31, 2019
USD ($)
$ / shares
shares
Dec. 31, 2020
$ / shares
shares
Purchase price | $ / shares           $ 1.50
Deferred fee | $         $ 9,625,000  
Conversion of stock, ratio     1      
Preferred stock, par value | $ / shares       $ 0.0001 $ 0.0001 0.0001
Number of shares issued and sold     7,187,500      
New Blade Warrants            
Warrants outstanding 14,166,667          
Merger Agreement            
Number of shares issued per warrant 0.33          
Reference price per share | $ / shares $ 10.00          
Quotient amount | $ $ 356,250,000          
Merger Agreement | Blade Stockholders [Member]            
Consideration in shares, number of shares issued 9,689,826          
Preferred stock, par value | $ / shares $ 0.00001          
Class A Common stock            
Number of units issued         27,500,000  
Common stock, par value | $ / shares       $ 0.0001 $ 0.0001 $ 0.0001
Number of shares issued and sold         0  
Common stock, shares outstanding       5,160,271 1,319,073 5,019,659
Class A Common stock | Merger Agreement            
Common stock, par value | $ / shares 0.0001          
Class B Common stock            
Number of units issued         0  
Common stock, par value | $ / shares       $ 0.0001 $ 0.0001 $ 0.0001
Conversion of stock, ratio       1   1
Number of shares issued and sold         7,187,500  
Common stock, shares outstanding       6,875,000 6,875,000 6,875,000
Class B Common stock | Merger Agreement            
Common stock, par value | $ / shares $ 0.0001          
New Blade Common Stock            
Conversion of stock, ratio       1    
Common stock, shares outstanding 78,903,021          
New Blade Common Stock | Merger Agreement            
Common stock, par value | $ / shares $ 0.0001          
Conversion of stock, ratio 1          
Common Stock | Merger Agreement | Blade Stockholders [Member]            
Common stock, par value | $ / shares $ 0.00001          
Consideration in shares, number of shares issued 10,024,296          
Preferred stock | Merger Agreement | Blade Stockholders [Member]            
Consideration in shares, number of shares issued 16,101,172          
Over-allotment option            
Term for underwriters to purchase units to cover overallotments   45 days        
Maximum number of shares that may be issued to underwriters   3,750,000        
Number of units issued   2,500,000        
Purchase price | $ / shares   $ 10.00        
Forfeiture of option to exercise the remaining units   1,250,000        
Cash underwriting discount per unit | $ / shares   $ 0.20        
Cash underwriting discount | $   $ 5,500,000        
Deferred fee per unit | $ / shares   $ 0.35        
Deferred fee | $   $ 9,625,000        
Pipe investment | New Blade Common Stock | Merger Agreement            
Number of shares issued and sold 12,500,000          
Issue price per share | $ / shares $ 10.00          
Aggregate purchase price | $ $ 125,000,000