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

Stockholders' Equity - Series B Convertible Preferred Stock (Details)

v3.21.1
Stockholders' Equity - Series B Convertible Preferred Stock (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 2 Months Ended
May 31, 2019
Mar. 14, 2018
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Dec. 31, 2019
Sep. 30, 2019
Class of Stock [Line Items]              
Issuance of Founder Shares to Sponsor (in shares) 7,187,500            
Preferred stock, par value     $ 0.0001 $ 0.0001   $ 0.0001  
Blade Urban Air Mobility [Member]              
Class of Stock [Line Items]              
Preferred stock, par value         $ 0.00001    
Blade Urban Air Mobility [Member] | Preferred stock - Series B              
Class of Stock [Line Items]              
Issuance of Founder Shares to Sponsor (in shares)   12,565,294          
Price per share   $ 2.9199          
Preferred stock, par value   $ 0.00001 $ 0.00001   $ 0.00001   $ 0.00001
Net proceeds from issuance   $ 36,689