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Organization and Business Operations - Additional Information (Details) - USD ($)
4 Months Ended
Feb. 05, 2019
Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Line Items]    
Maximum maturity period   180 days
Regulatory Withdrawals, maximum that may be funded via Trust Account interest   $ 750,000
Maximum release period   24 months
Redemption percentage if business combination is not completed   100.00%
Number of days to seek shareholder approval for redemption of shares   2 days
Number of days to provide opportunity to shareholders to sell their shares   2 days
Dissolution expenses, maximum allowed   $ 100,000
Minimum    
Organization Consolidation And Presentation Of Financial Statements [Line Items]    
Percentage of fair market value   80.00%
Maximum    
Organization Consolidation And Presentation Of Financial Statements [Line Items]    
Threshold Period to Complete Business Combination from Closing of Public Offering   24 months
Threshold net tangible assets   $ 5,000,001
Number of days to redeem the shares if Business combination is not completed   10 days
Subsequent Event    
Organization Consolidation And Presentation Of Financial Statements [Line Items]    
Proceeds from initial public offering $ 400,000,000  
Private Placement | Subsequent Event    
Organization Consolidation And Presentation Of Financial Statements [Line Items]    
Amount placed in trust account 400,000,000  
Proceeds from sale of Private Placement Warrants $ 10,000,000