Description of Organization and Business Operations - Additional Information (Detail) - USD ($)		3 Months Ended
	Jun. 14, 2018	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Organization And Business Operations [Line Items]
Date of incorporation		Feb. 23, 2018
Sale of units, price per share	$ 10.00
Total offering costs	$ 33,200,000
Deferred underwriting commission	$ 20,700,000	$ 20,737,500	$ 20,737,500
Business combination and initial public offering completion period description		The Company’s amended certificate of incorporation provides that, other than the withdrawal of interest to pay taxes, if any, none of the funds held in the Trust Account will be released until the earlier of: (i) the completion of its Initial Business Combination; (ii) the redemption of any shares of Class A common stock included in the Units (the “Public Shares”) sold in the Initial Public Offering that have been properly tendered in connection with a stockholder vote to amend the Company’s certificate of incorporation (A) to modify the substance or timing of its obligation to redeem 100% of such shares of Class A common stock if the Company does not complete its Initial Business Combination by June 14, 2020 (or September 14, 2020 if the Company has executed a letter of intent, agreement in principle or definitive agreement for the Initial Business Combination by June 14, 2020 but has not completed the Initial Business Combination by such date) (the “Combination Period”) or (B) with respect to any other provision relating to stockholders’ rights for pre-Initial Business Combination activities; and (iii) the redemption of 100% of the shares of Class A common stock included in the Units sold in the Initial Public Offering if the Company is unable to complete an Initial Business Combination within the Combination Period, subject to the requirements of law. The proceeds deposited in the Trust Account could become subject to the claims of the Company’s creditors, if any, which could have priority over the claims of the Company’s public stockholders.
Minimum percentage of fair market value of business acquisition to trust account		80.00%
Maximum net tangible assets to complete business combination		$ 5,000,001
Accrued interest to pay dissolution expenses		100,000
Cash		1,395,982	$ 1,666,639	$ 25,000
Investment Income Available in Trust Account		$ 9,500,000
Common Class A [Member]
Organization And Business Operations [Line Items]
Shares redemption obligation percentage		100.00%
Sponsor [Member]
Organization And Business Operations [Line Items]
Proceeds from issuance of common stock		$ 25,000
Note payable		300,000
Advances from related party		40,276
Proceeds from consummation of private placement		$ 14,650,000
U.S. Government Treasury Bills [Member] | Maximum [Member]
Organization And Business Operations [Line Items]
Debt instrument, maturity period		180 days
IPO [Member]
Organization And Business Operations [Line Items]
Sale of units	63,250,000
Gross proceeds from sale of units	$ 632,500,000
Over-Allotment Option [Member]
Organization And Business Operations [Line Items]
Sale of units	8,250,000
Private Placement [Member]
Organization And Business Operations [Line Items]
Proceeds from issuance of warrants	$ 14,650,000
Held in a trust account	$ 632,500,000
Private Placement [Member] | Sponsor [Member]
Organization And Business Operations [Line Items]
Proceeds from consummation of private placement		$ 2,200,000