Quarterly report pursuant to Section 13 or 15(d)

Condensed Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical)

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Condensed Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - shares
3 Months Ended
Mar. 31, 2019
Jan. 31, 2019
Jun. 30, 2018
Sale of stock units 10,800,000    
Over-Allotment Option [Member]      
Shares subject to forfeiture   175,000 375,000
Shares no longer subject to forfeiture   200,000  
Private Units [Member]      
Sale of stock units 395,000