Description of Organization and Business Operations - Additional Information (Detail) - USD ($)		12 Months Ended
	Jun. 08, 2018	Dec. 31, 2019	Dec. 31, 2018
Organization And Business Operations [Line Items]
Proceeds from public offering	$ 690,000,000		$ 690,000,000
Proceeds from private placement	15,800,000		$ 15,800,000
Deposit to trust account	$ 690,000,000
Net asset value		$ 1.00
Percentage of public shares required to repurchase if business combination is not completed within specified period		100.00%
Balance in trust account		$ 707,405,205
Percentage of fair market value to that of balance in the trust account		80.00%
Period from closing of public offering to complete business combination		24 months
Deferred cost		$ 2,000,000
Accrued dividends receivable held in Trust Account		918,719
Common Class A [Member]
Organization And Business Operations [Line Items]
Interest to pay dissolution expenses		100,000
Maximum [Member]
Organization And Business Operations [Line Items]
Payment of deferred underwriting commissions		$ 5,000,001