CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - $ / shares	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Euro deferred shares, par value (in dollars per share)	$ 0.01	$ 0.01
Euro deferred shares, shares authorized (in shares)	4,000,000	4,000,000
Euro deferred shares, shares issued (in shares)	4,000,000	4,000,000
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	233,668,617	230,315,768
Common stock, shares outstanding (in shares)	233,668,617	230,315,768