Quarterly report pursuant to Section 13 or 15(d)

Public Offering (Details Narrative)

Public Offering (Details Narrative) - USD ($)
9 Months Ended
Mar. 15, 2017
Sep. 30, 2017
Gross proceeds from units sold $ 325,000,000  
Over-Allotment Option [Member]    
Description Of Unit   Each Unit consists of one share of the Company’s Class A common stock, $0.0001 par value per share, and one warrant (“Warrant”).
Over-Allotment Option [Member] | Cantor Fitzgerald & Co. (the "Underwriter") [Member]    
Number of units sold 2,500,000  
Unit price (in dollars per share) $ 10.00  
Class F Common Stock [Member] | MP Acquisition Sponsor LLC [Member]    
Number Of Shares Forfeited 500,000  
Class A Common Stock [Member]    
Number of share consist in each unit 32,500,000 32,500,000