Description of Organization and Business Operations - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2018 USD ($) $ / shares
Organization And Business Operations [Line Items]
Proceeds from public offering	$ 690,000,000
Proceeds from private placement	15,800,000
Deposit to trust account	$ 690,000,000
Net asset value | $ / shares	$ 1.00
Proceeds held out of trust account	$ 2,000,000
Percentage of public shares required to repurchase if business combination is not completed within specified period	100.00%
Balance in trust account	$ 693,769,609
Accrued dividends	$ 1,072,455
Percentage of fair market value to that of balance in the trust account	80.00%
Payment of deferred underwriting commissions	$ 13,800,000
Interest to pay dissolution expenses	$ 100,000
Period from closing of public offering to complete business combination	24 months
Maximum [Member]
Organization And Business Operations [Line Items]
Payment of deferred underwriting commissions	$ 5,000,001