Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details Narrative)

v3.8.0.1
Related Party Transactions (Details Narrative) - USD ($)
1 Months Ended 7 Months Ended 9 Months Ended
Mar. 15, 2017
May 31, 2016
Mar. 31, 2016
Sep. 30, 2016
Sep. 30, 2017
Dec. 31, 2016
Gross proceeds from warrants issued       $ 0 $ 7,750,000  
Value of shares issued $ 325,000,000       325,000,000  
Due to Affiliate, Current         $ 71,034 $ 0
Founder Shares, Lock-Up Release Description     if the last sale price of the Company’s Public Shares equals or exceeds $12.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within any 30 trading-day period commencing at least 150 days after the Initial Business Combination, the Founder Shares will be released from the lock up.      
MP Acquisition Sponsor LLC (the "Sponsor") [Member]            
Percentage of ownership after transaction   20.00%        
Due from related party 275,000          
Repayment of related party debt $ 275,000          
Private Placement [Member]            
Warrant exercise price (in dollars per share) $ 0.50          
Gross proceeds from warrants issued $ 7,750,000          
Over-Allotment Option [Member] | Cantor Fitzgerald & Co. (the "Underwriter") [Member]            
Number of units sold 2,500,000          
Warrant [Member] | Private Placement [Member]            
Number of shares issued 15,500,000          
Warrant [Member] | Private Placement [Member] | Cantor Fitzgerald & Co. (the "Underwriter") [Member]            
Number of shares issued 1,000,000          
Warrant [Member] | Private Placement [Member] | MP Acquisition Sponsor LLC (the "Sponsor") [Member]            
Number of shares issued 14,500,000          
Class A Common Stock [Member]            
Number of shares issued 32,500,000       32,500,000  
Common stock, par value (in dollars per share)         $ 0.0001 $ 0.0001
Value of shares issued         $ 3,250  
Common stock, outstanding         1,367,190 0
Class A Common Stock [Member] | Private Placement [Member]            
Share price of whole share (in dollars per share) $ 11.50          
Share price of half share (in dollars per share) $ 5.75          
Class F Common Stock [Member]            
Common stock, par value (in dollars per share)         $ 0.0001 $ 0.0001
Common stock, outstanding         8,125,000 8,625,000
Class F Common Stock [Member] | MP Acquisition Sponsor LLC (the "Sponsor") [Member]            
Number of shares issued     7,187,500      
Common stock, par value (in dollars per share)     $ 0.0001      
Value of shares issued     $ 25,000      
Share price (in dollars per share)     $ 0.004      
Common stock, outstanding   8,625,000        
Number of shares subject to forfeiture   1,125,000        
Number of shares forfeited   500,000        
Number of shares no longer subject to forfeiture   625,000