Summary Of Significant Accounting Policies (Detail) - USD ($)		3 Months Ended				6 Months Ended
		Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Accounting Policies [Abstract]
Net (loss) income		$ (114,443)	$ 1,048,954	$ (1,019)	$ (801)	$ 934,511	$ (1,820)
Less: Income attributable to common stock subject to possible redemption		(32,324)				(1,229,757)
Adjusted net loss		$ (146,767)		$ (1,019)		$ (295,246)	$ (1,820)
Weighted average shares outstanding, basic and diluted	[1]	9,411,058		6,875,000		9,399,803	7,596,685
Basic and diluted net loss per common share	[2]	$ (0.02)		$ 0.00		$ (0.03)	$ 0.00

[1] Excludes an aggregate of up to 30,119,559 shares subject to possible redemption at June 30, 2020 and 1,031,250 shares at June 30, 2019 subject to forfeiture if the underwriters’ over-allotment option was not exercised in full or in part (see Note 5). In April 2019, the Sponsor contributed back to the Company, for no consideration, 1,581,250 shares of common stock.

[2] Net loss per common share – basic and diluted excludes income attributable to common stock subject to possible redemption of $32,324 and $1,229,757 for the three and six months ended June 30, 2020, respectively (see Note 2).