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Stockholders' Equity - Additional Information (Detail) - $ / shares
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Sep. 30, 2019
Preferred stock, shares authorized   1,000,000
Preferred stock, par value   $ 0.0001
Preferred stock, shares issued   0
Preferred stock, shares outstanding   0
Aggregate of share subject to possible redemption   21,797,092
Redeem of public warrants   if, and only if, the reported last sale price of the Company’s Class A common stock equals or exceeds $18.00 per share for any 20 trading days within a 30-trading day period ending three business days before the Company sends the notice of redemption to the warrant holders.
Exercise of warrants description   the exercise price of the warrants will be adjusted (to the nearest cent) to be equal to 115% of the greater of (i) the Market Value or (ii) the Newly Issued Price, and the $18.00 per share redemption trigger price described above will be adjusted (to the nearest cent) to be equal to 180% of the greater of the Market Value and the Newly Issued Price.
Common stock conversion percentage   20.00%
Redemption price per warrant   $ 0.01
Number of shares not subject to forfeiture   750,000
Common Class A [Member]    
Common stock, shares authorized   75,000,000
Common stock, par value   $ 0.0001
Common stock, shares issued   1,202,908
Common Stock, shares outstanding   1,202,908
Common Class A [Member] | Additional Shares [Member]    
Percentage of shares of total equity under business combination 60.00%  
Common Class A [Member] | Additional Shares [Member] | Maximum [Member]    
Business acquisition share price   $ 9.20
Common Class B [Member]    
Common stock, shares authorized   10,000,000
Common stock, par value   $ 0.0001
Common stock, shares issued   5,750,000
Common Stock, shares outstanding   5,750,000
Number of shares not subject to forfeiture   750,000