Supplemental Financial Information - Additional Information (Details) - USD ($) $ in Millions	Mar. 31, 2021	Feb. 05, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Condensed Balance Sheet Statements, Captions [Line Items]
Restricted cash	$ 0.8	$ 2.0	$ 21.7
Capital expenditures incurred but not yet paid	38.6	31.0	35.3	$ 24.7	$ 36.0
Participants In The Rights Offering | Ordinary Shares
Condensed Balance Sheet Statements, Captions [Line Items]
Plan of reorganization, shares issued, subscription price		200.0
Participants In The Rights Offering | Second Lien Notes Indenture | Ordinary Shares
Condensed Balance Sheet Statements, Captions [Line Items]
Plan of reorganization, shares issued, subscription price		200.0
Finco
Condensed Balance Sheet Statements, Captions [Line Items]
Restricted cash	$ 0.8	$ 2.0	$ 1.7