Description of Organization and Business Operations - Additional Information (Details) - USD ($)		9 Months Ended		16 Months Ended
	Mar. 12, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 13, 2019	Dec. 31, 2019
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Date of incorporation		Nov. 17, 2017
Proceeds from sale of units in Initial Public Offering			$ 250,000,000
Proceeds from sale of Private Placement Warrants			7,000,000
Amount held in trust account		$ 253,707,651			$ 253,569,459
Public shares redemption percentage		100.00%
Maximum period to complete initial business combination		24 months
Minimum percentage of fair market value of business acquisition to trust account balance		80.00%
Number of days to deposit amount in trust account		2 days
Minimum net tangible assets		$ 5,000,001
Maximum amount of cash from interest earned in Trust Account to pay dissolution expenses if Company ceases operations		100,000
Available funds from outside trust account for working capital requirement		434,086
Investment income held in trust account to pay franchise and income tax		3,707,651
Working capital		95,459
Proceeds from note payable			37,120
Advances from an affiliate		$ 137,078	$ 167,046
Founder Shares
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Proceeds from sale of the founder shares				$ 25,000
Sponsor
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Proceeds from note payable				300,000
Advances from an affiliate				$ 118,323
IPO
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Sale of units in initial public offering	25,000,000
Sale of stock price per unit	$ 10.00	$ 10.00
Proceeds from sale of units in Initial Public Offering	$ 250,000,000
Payment of offering costs	14,650,000
Proceeds from sale of Private Placement Warrants	7,000,000
Underwriter discounts	13,750,000
Deferred underwriting discount	8,750,000
Other offering costs	900,000
IPO and Private Placement
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Amount held in trust account	$ 250,000,000