Shareholders' Equity - Narrative (Details) - $ / shares						6 Months Ended
	Jun. 03, 2019	Mar. 27, 2019	Jan. 22, 2018	Jan. 18, 2018	Jan. 17, 2018	Jun. 30, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Common stock, shares authorized (shares)						426,000,000	1,000
Common stock, par value (usd per share)							$ 0.01
Preferred stock, shares authorized (shares)						1,000,000
Preferred stock, par value (shares)						$ 0.0001
Threshold number of days after the closing of business combination to exercise (days)						30 days
Exercise price of warrants (in usd per share)						$ 0.01
Threshold number of days or prior written notice that warrants may be called for redemption (days)						30 days
Minimum share price threshold for warrants to be called (in usd per share)						$ 18.00
Threshold number of trading days price must remain above trigger price (days)						20 days
Trading period that price must remain above trigger price (days)						30 days
Common Class A
Class of Stock [Line Items]
Common stock, shares authorized (shares)						200,000,000
Common stock, par value (usd per share)						$ 0.0001
Number of securities called by each warrant (share)						1
Common Class B
Class of Stock [Line Items]
Common stock, shares authorized (shares)						25,000,000
Common stock, par value (usd per share)						$ 0.0001
Common Class C
Class of Stock [Line Items]
Common stock, shares authorized (shares)						200,000,000
Common stock, par value (usd per share)						$ 0.0001
Number of securities called by each warrant (share)						1
Common Class A (or, at each holder’s election, Class C ordinary shares)
Class of Stock [Line Items]
Exercise price of warrants (in usd per share)						$ 11.50
IPO
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction (shares)			30,000,000
Private Placement
Class of Stock [Line Items]
Sale of stock, price per share (in usd per share)	$ 10.00
Private Placement | Common Class A (or, at each holder’s election, Class C ordinary shares)
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction (shares)	15,000,000
Public Warrants | IPO
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction (shares)			15,000,000
Number of securities called by each warrant (share)			2
Forward Purchase Warrants | Private Placement
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction (shares)	5,000,000
Number of securities called by each warrant (share)	3
Private Placement Warrants | Common Class A
Class of Stock [Line Items]
Convert private placement warrants (shares)		742,926
Private Placement Warrants | Private Placement
Class of Stock [Line Items]
Sale of stock, number of shares issued in transaction (shares)					8,000,000.0
Sale of stock, price per share (in usd per share)					$ 1.00
Number of warrants canceled (shares)		7,429,256
Threshold number of days after the closing of business combination to exercise (days)				30 days
Private Placement Warrants | Private Placement | Common Class A
Class of Stock [Line Items]
Number of securities called by each warrant (share)					0.1