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Significant Accounting Policies - Additional Information (Details) - USD ($)
6 Months Ended 12 Months Ended
Feb. 05, 2019
Jun. 30, 2019
Dec. 31, 2018
Significant Accounting Policies [Line Items]      
Dilutive securities, effect on basic earnings per share   $ 0  
Federal depository insurance coverage amount   $ 250,000  
Class A common stock subject to possible redemption (in shares)   38,489,273  
Accrued interest and penalties related to unrecognized tax liabilities   $ 0  
Investments and cash held in Trust Account   $ 403,886,144  
Redemption percentage if business combination is not completed   100.00%  
Dissolution expenses, maximum allowed   $ 100,000  
Redemption rights or liquidating distributions with respect to warrants   0  
Current liabilities   156,103 $ 486,849
Working capital   365,795 3,015
Maximum      
Significant Accounting Policies [Line Items]      
Threshold net tangible assets   $ 5,000,001  
Number of days to redeem the shares if Business combination is not completed   10 days  
Class A Common Stock      
Significant Accounting Policies [Line Items]      
Sale of common stock (in shares)   40,000,000  
IPO      
Significant Accounting Policies [Line Items]      
Offering costs including underwriter’s fees   $ 22,865,105 $ 437,375
Underwriter's fees   $ 22,000,000  
IPO | Class A Common Stock      
Significant Accounting Policies [Line Items]      
Sale of common stock (in shares) 40,000,000 40,000,000