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Stockholders' Equity (Details)
 9 Months Ended
Sep. 30, 2019
$ / shares
shares
Dec. 31, 2018
$ / shares
shares
Feb. 15, 2018
Vote
$ / shares
shares
Stockholders' Equity      
Common stock, shares authorized (in shares) 200,000,000 200,000,000 200,000,000
Common stock, par value (in dollars per share) | $ / shares $ 0.0001 $ 0.0001 $ 0.0001
Number of votes per common stock | Vote     1
Common stock, shares outstanding including shares subject to possible redemption (in shares) 31,250,000 31,250,000  
Temporary stock, shares outstanding (in shares) 24,055,352 24,054,988  
Preferred stock, shares authorized (in shares) 1,000,000 1,000,000  
Preferred stock, par value (in dollars per share) | $ / shares $ 0.0001 $ 0.0001  
Preferred stock, shares issued (in shares) 0 0  
Preferred stock, shares outstanding (in shares) 0 0  
Exercisable period after the completion of a Business Combination 30 days    
Agreed duration to file registration with SEC 20 days    
Warrant expiration period 5 years    
Warrant non transferable period 30 days    
Redemption price of warrant | $ / shares $ 0.01    
Prior notice period 30 days    
Minimum closing price of ordinary share | $ / shares $ 18.00    
Number of trading days price must be equal or above target price 20 days    
Total number of trading days 30 days