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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)
3 Months Ended
Jun. 14, 2018
Mar. 31, 2019
Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Income and franchise taxes   $ 867,000  
Federal Deposit Insurance Corporation coverage   250,000  
Maximum net tangible assets to complete business combination   5,000,001  
Unrecognized tax benefits   0 $ 0
Amounts accrued for payment of interest or penalties   $ 0 $ 0
IPO [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Sale of units 63,250,000    
Common Class A [Member]      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Antidilutive securities excluded from computation of earnings per share, amount   30,850,000  
Temporary equity, shares subject to possible redemption outstanding   61,617,564 61,358,834