Statements of Shareholders' Equity - USD ($)	Total	Initial Public Offering	Preferred Shares	Preferred Shares Initial Public Offering	Additional Paid In Capital	Additional Paid In Capital Initial Public Offering	Retained Earnings (Accumulated Deficit)	Retained Earnings (Accumulated Deficit) Initial Public Offering	Class A ordinary shares	Class A ordinary shares Initial Public Offering	Class F ordinary shares	Class F ordinary shares Initial Public Offering
Balance at Feb. 13, 2017	$ 0		$ 0		$ 0		$ 0		$ 0		$ 0
Balance, Shares at Feb. 13, 2017			0						0		0
Sale of stock	25,000	$ 450,000,000	$ 0	$ 0	23,850	$ 449,995,500	0	$ 0	$ 0	$ 4,500	$ 1,150	$ 0
Sale of stock , Shares			0	0					0	45,000,000	11,500,000	0
Sale of 7,333,333 Private Placement Warrants to Sponsor on June 30, 2017 at $1.50 per Private Placement Warrant	11,000,000		$ 0		11,000,000		0		$ 0		$ 0
Underwriters discounts	(9,000,000)		0		(9,000,000)		0		0		0
Deferred offering costs charged to additional paid-in capital	(1,299,223)		0		(1,299,223)		0		0		0
Deferred underwriting compensation	(15,750,000)		0		(15,750,000)		0		0		0
Class F ordinary shares forfeited by Sponsor on August 14, 2017	0		$ 0		25		0		$ 0		$ (25)
Class F ordinary shares forfeited by Sponsor on August 14, 2017, Shares			0						0		(250,000)
Change in shares subject to possible redemption	(429,599,400)		$ 0		(429,595,104)		0		$ (4,296)		$ 0
Changes in shares subject to possible redemption, Shares			0						(42,959,940)		0
Net income (loss) attributable to ordinary shares	(376,372)		$ 0		0		(376,372)		$ 0		$ 0
Balance at Dec. 31, 2017	5,000,005		$ 0		5,375,048		(376,372)		$ 204		$ 1,125
Balance, Shares at Dec. 31, 2017			0						2,040,060		11,250,000
Sale of stock , Shares		45,000,000								45,000,000
Change in shares subject to possible redemption	(6,865,500)		$ 0		(6,865,431)		0		$ (69)		$ 0
Changes in shares subject to possible redemption, Shares									(686,550)
Redeemable equity adjustment	0		0		1,490,383		(1,490,383)		$ 0		0
Net income (loss) attributable to ordinary shares	6,865,501		0		0		6,865,501		0		0
Balance at Dec. 31, 2018	$ 5,000,006		$ 0		$ 0		$ 4,998,746		$ 135		$ 1,125
Balance, Shares at Dec. 31, 2018									1,353,510		11,250,000