Cash Held in Trust Account - Additional Information (Details) - USD ($)			5 Months Ended
	Jun. 30, 2017	Sep. 16, 2015	Jun. 30, 2017
Assets Held in Trust Account [Line Items]
Gross proceeds from public offering	$ 450,000,000	$ 450,000,000	$ 450,000,000
Gross proceeds from private placement warrants	11,000,000	11,000,000	11,000,000
Payments of underwriting discounts			9,000,000
Cash	$ 1,935,523		1,935,523
Repay notes payable		300,000	300,000
Public Offering
Assets Held in Trust Account [Line Items]
Payments of underwriting discounts		9,000,000	$ 9,000,000
Private Placement
Assets Held in Trust Account [Line Items]
Cash		$ 2,000,000