Parent Company Information - Condensed Balance Sheets (Details) - USD ($) $ / shares in Units, $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jul. 12, 2018
Assets
Cash	$ 793.3	$ 767.7
Total assets	7,549.2	7,774.0
Liabilities
Total liabilities	5,793.8	6,096.0
Equity
Ordinary shares, nominal value $0.10 per share, 800,000,000 shares authorized; 229,696,912 and 227,282,173 shares issued and outstanding as of December 31, 2024 and 2023, respectively	23.0	22.7
Additional paid-in capital	2,986.4	2,957.3
Accumulated deficit	(985.9)	(1,117.2)
Accumulated other comprehensive loss	(268.6)	(185.4)
Total equity attributable to the Company	1,754.9	1,677.4
Non-controlling interests	0.5	0.6
Total equity	1,755.4	1,678.0	$ 1,662.1	$ 1,448.6
Total liabilities and shareholders’ equity	$ 7,549.2	$ 7,774.0
Ordinary shares, nominal value per share (in dollars per share)	$ 0.10	$ 0.10			$ 0.01
Ordinary shares authorized (in shares)	800,000,000	800,000,000
Ordinary shares issued (in shares)	229,696,912	227,282,173
Ordinary shares outstanding (in shares)	229,696,912	227,282,173
Parent Company
Assets
Cash	$ 26.6	$ 22.3
Accounts receivables	257.0	226.6
Investment in subsidiaries	1,614.8	1,561.9
Total assets	1,898.4	1,810.8
Liabilities
Trade and other payables	143.0	132.8
Total liabilities	143.0	132.8
Equity
Ordinary shares, nominal value $0.10 per share, 800,000,000 shares authorized; 229,696,912 and 227,282,173 shares issued and outstanding as of December 31, 2024 and 2023, respectively	23.0	22.7
Additional paid-in capital	2,986.4	2,957.3
Accumulated deficit	(985.9)	(1,117.2)
Accumulated other comprehensive loss	(268.6)	(185.4)
Total equity attributable to the Company	1,754.9	1,677.4
Non-controlling interests	0.5	0.6
Total equity	1,755.4	1,678.0
Total liabilities and shareholders’ equity	$ 1,898.4	$ 1,810.8