Description of Business and Operations (Details Narrative) - USD ($)					3 Months Ended	6 Months Ended		12 Months Ended
	Aug. 02, 2020	Jun. 17, 2020	Jun. 15, 2020	Dec. 17, 2018	Jun. 30, 2020	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2018	Dec. 17, 2018	Dec. 31, 2019
Subsidiary Sale Of Stock [Line Items]
Date of incorporation						Jul. 09, 2014
Proceeds from issuance of public offering							$ 7,584,128
Proceeds from sponsor loan						$ 2,826,000
Redeemable common stock shares			593,700
Amount withdrawn with regard to redemption			$ 6,096,437
Contribution Per Remaining Public Share To The Trust Account			$ 0.09
Investments maturity period						180 days
Description of restriction of stock						that a public stockholder, together with any affiliate of such stockholder or any other person with whom such stockholder is acting in concert or as a “group” (as defined under Section 13 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), will be restricted from redeeming its shares with respect to more than an aggregate of 20% or more of the Class A common stock sold in the Public Offering, without the prior consent of the Company
Percentage of public shares to be redeemed in case of not completing business combination		100.00%				100.00%
Proceeds from sale of units in the initial public offering, net of underwriting discount and offering cost paid							$ 7,584,128
Description of failure to consummate business combination						unable to complete a Business Combination by September 17, 2020 (which was originally June 17, 2020, but has been extended due to the shareholder approval of an extension of time) (or if such date is extended at a duly called meeting of our stockholders, such later date) (the “Combination Period”), the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the Public Shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account including interest earned on the funds held in the Trust Account and not previously released to the Company to pay franchise and income taxes (less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding Public Shares, which redemption will completely extinguish public stockholders’ rights as stockholders (including the right to receive further liquidating distributions, if any), subject to applicable law, and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s remaining stockholders and the Company’s board of directors, dissolve and liquidate, subject in each case to the Company’s obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law.
Deposit in Trust Account [Member]
Subsidiary Sale Of Stock [Line Items]
Adjusted for Redemption from proceed from public offering			$ 279,900,000
Proceeds from issuance of private Placement								$ 286,000,000
Common stock, conversion price (in dollars per share)						$ 10.10
Common Stock Class A [Member]
Subsidiary Sale Of Stock [Line Items]
Common stock (in dollars)					$ 0.0001	$ 0.0001				$ 0.0001
Minimum [Member]
Subsidiary Sale Of Stock [Line Items]
Percentage of outstanding voting securities of target to complete business acquisition					50.00%	50.00%
Net tangible assets					$ 5,000,001	$ 5,000,001
Minimum [Member] | Common Stock Class A [Member]
Subsidiary Sale Of Stock [Line Items]
Common stock redemption percentage						20.00%
Maximum [Member]
Subsidiary Sale Of Stock [Line Items]
Interest to pay dissolution expenses						$ 100,000
Sponsor [Member]
Subsidiary Sale Of Stock [Line Items]
Proceeds from issuance of private Placement				$ 6,000,000		6,000,000			$ 6,000,000
Adjusted for Redemption from proceed from private placement						$ 5,315,700
Trust Account [Member]
Subsidiary Sale Of Stock [Line Items]
Contributions to Trust Account		$ 2,489,824
Sale of stock, price per share (in dollars per share)					$ 10.10	$ 10.10
Proceeds from trust account used to pay franchise tax.					$ 136,882	$ 336,882
Trust Account [Member] | Money Market Funds [Member]
Subsidiary Sale Of Stock [Line Items]
Investment securities in trust account					$ 286,565,390	$ 286,565,390				$ 291,761,159
Trust Account [Member] | Minimum [Member]
Subsidiary Sale Of Stock [Line Items]
Minimum percentage of aggregate fair market value of assets to be held for business acquisition					80.00%	80.00%
Trust Account [Member] | Sponsor [Member]
Subsidiary Sale Of Stock [Line Items]
Sale of stock, price per share (in dollars per share)					$ 10.10	$ 10.10
Public Offering [Member]
Subsidiary Sale Of Stock [Line Items]
Proceeds from issuance of public offering						$ 282,600,000		$ 275,000,000
Adjusted for Redemption from proceed from public offering						276,503,600
Offering costs						5,585,900
Underwriting fees						5,100,000
Other offering costs						$ 485,900
Sale of stock, price per share (in dollars per share)					10.00	$ 10.00		$ 10.00
Number of shares issued in transaction						28,260,000		27,500,000
Proceeds from sale of units in the initial public offering, net of underwriting discount and offering cost paid						$ 282,600,000		$ 275,000,000
Private Placement [Member] | Sponsor [Member]
Subsidiary Sale Of Stock [Line Items]
Sale of stock, price per share (in dollars per share)				$ 10.00					$ 10.00
Number of shares issued in transaction				600,000					600,000
Private Placement [Member] | Sponsor [Member] | Forward Purchase Contract [Member]
Subsidiary Sale Of Stock [Line Items]
Sale of stock, price per share (in dollars per share)					$ 10.00	$ 10.00
Gross proceeds from issuance offering						$ 30,000,000
Number of shares issued in transaction						3,000,000
Private Placement [Member] | Sponsor [Member] | Forward Purchase Contract [Member] | GCM PubCo [Member] | Subsequent Events [Member]
Subsidiary Sale Of Stock [Line Items]
Proceeds from issuance of public offering	$ 30,000,000
Proceeds from sale of units in the initial public offering, net of underwriting discount and offering cost paid	$ 30,000,000
Private Placement [Member] | Sponsor [Member] | Forward Purchase Contract [Member] | GCM PubCo [Member] | Warrants [Member] | Subsequent Events [Member]
Subsidiary Sale Of Stock [Line Items]
Number of shares issued in transaction	1,500,000
Private Placement [Member] | Sponsor [Member] | Common Stock Class A [Member] | Forward Purchase Contract [Member]
Subsidiary Sale Of Stock [Line Items]
Number of shares issued in transaction						750,000
Private Placement [Member] | Sponsor [Member] | Common Stock Class A [Member] | Forward Purchase Contract [Member] | GCM PubCo [Member] | Subsequent Events [Member]
Subsidiary Sale Of Stock [Line Items]
Number of shares issued in transaction	3,500,000