Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Summary of Information about Company's Assets Measured on Recurring Basis

The following table presents information about the Company’s assets that are measured on a recurring basis as of March 31, 2019 and December 31, 2018 and indicates the fair value hierarchy of the valuation techniques that the Company utilized to determine such fair value:

March 31, 2019

Description	Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Investments held in Trust Account	$	641,980,998	$	—	$	—

December 31, 2018

Description	Quoted Prices in Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Investments held in Trust Account	$	639,719,665	$	—	$	—