Public Offering - Additional Information (Details) - USD ($)		4 Months Ended
	Feb. 05, 2019	Dec. 31, 2018
Class Of Stock [Line Items]
Percentage of deferred underwriting discount		3.50%
Warrant
Class Of Stock [Line Items]
Number of shares that contribute each unit		1.33
Warrant exercisable term if business combination is completed		30 days
Warrant exercisable term from closing of public offer		12 months
Warrant expiration term		5 years
Number of months to complete business combination		24 months
Subsequent Event
Class Of Stock [Line Items]
Proceeds from initial public offering	$ 400,000,000
Subsequent Event | IPO
Class Of Stock [Line Items]
Share Price	$ 10.00
Proceeds from initial public offering	$ 400,000,000
Upfront underwriting discount (as a percent)	2.00%
Upfront underwriting discount	$ (8,000,000)
Percentage of deferred underwriting discount	3.50%
Deferred underwriting discount	$ (14,000,000)
Subsequent Event | Over-Allotment Option
Class Of Stock [Line Items]
Sale of common stock to Sponsor in October 2018, shares	2,500,000
Class A Common Stock
Class Of Stock [Line Items]
Number of shares that contribute each unit		1
Common stock, par value		$ 0.0001
Class A Common Stock | IPO
Class Of Stock [Line Items]
Sale of common stock to Sponsor in October 2018, shares		40,000,000
Class A Common Stock | Warrant
Class Of Stock [Line Items]
Number of shares warrant may be converted		1
Warrants exercise price (in dollars per share)		$ 11.50