Summary of Significant Accounting Policies (Details Textual) - USD ($)		3 Months Ended		6 Months Ended
	Dec. 22, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Summary of Significant Accounting Policies (Textual)
Federal depository insurance coverage		$ 250,000		$ 250,000
Offering costs		17,387,000		17,387,000
Underwriter discounts				16,500,000
Payment of deferred cost				10,500,000
Professional, printing, filing, regulatory and other costs				887,000
Income tax expense		$ 220,000		$ 435,000
Percentage of income tax rate		22.00%		24.00%
Deferred tax asset		$ 170,000		$ 170,000		$ 66,000
Redeem public shares in net tangible assets				$ 5,000,001
Sale of units in public offering, shares				30,000,000
Common stock subject to possible redemption, shares		28,771,790		28,771,790		28,635,526
Withdrawn from trust for working capital purposes (up to a maximum per year)		$ 750,000		$ 750,000
Franchise Tax [Member]
Summary of Significant Accounting Policies (Textual)
Income tax expense		$ 266,000		$ 481,000
Maximum [Member]
Summary of Significant Accounting Policies (Textual)
Federal corporate income tax rate	35.00%
Minimum [Member]
Summary of Significant Accounting Policies (Textual)
Federal corporate income tax rate	21.00%
Class A ordinary shares [Member]
Summary of Significant Accounting Policies (Textual)
Diluted income (loss) per common share				23,750,000
Shares subject to possible redemption, shares				30,000,000