Description of Organization and Business Operations (Details)	6 Months Ended
	Jun. 30, 2020 USD ($)
Description of Organization and Business Operations (Details) [Line Items]
Sponsor and public offering, description	The Company’s sponsor is Spartan Energy Acquisition Sponsor LLC, a Delaware limited liability company (the “Sponsor”). As described in Note 3, on August 14, 2018, the Company consummated the Public Offering of 55,200,000 of its units (the “Units”), including 7,200,000 Units that were issued pursuant to the underwriters’ full exercise of their over-allotment option, generating gross proceeds of $552,000,000. As described in Note 4, on August 14, 2018, simultaneously with the closing of the Public Offering, the Sponsor purchased an aggregate of 9,360,000 warrants (the “Private Placement Warrants”) at a purchase price of $1.50 per warrant, or approximately $14,040,000 in the aggregate (the “Private Placement”).
Percentage of redemption of public shares	100.00%
Percentage of minimum fair market value asset	80.00%
Net tangible assets	$ 5,000,001
Investment income	100,000
Opening bank account	323,563
Franchise income taxes	18,000,000
Net interest to dissolution expenses	100,000
working deficit	1,400,000
Advances due to related party	1,600,000
Net proceeds	3,900,000
Private Placement [Member]
Description of Organization and Business Operations (Details) [Line Items]
Trust account	552,000,000
Founder Shares [Member]
Description of Organization and Business Operations (Details) [Line Items]
Capital contribution	$ 25,000