Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Millions	Total	Common Stock	Common Stock Adjusted balance	Additional Paid-in Capital	Additional Paid-in Capital Adjustment	Additional Paid-in Capital Adjusted balance	Accumulated Earnings (Deficit)	Accumulated Earnings (Deficit) Adjustment	Accumulated Earnings (Deficit) Adjusted balance	Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Adjusted balance	Total Equity	Total Equity Adjustment	Total Equity Adjusted balance	Noncontrolling Interests	Noncontrolling Interests Adjusted balance
Balance including noncontrolling interest, beginning of period at Dec. 31, 2021		$ 1.6	$ 1.6	$ 3,732.6	$ (77.8)	$ 3,654.8	$ 466.9	$ 21.4	$ 488.3	$ (143.5)	$ (143.5)	$ 4,057.6	$ (56.4)	$ 4,001.2	$ 0.4	$ 0.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Change in noncontrolling interest															(0.4)
Common stock-based award activity	$ 44.2			44.2
Net (loss) income	243.1						243.1					243.1
Other comprehensive loss	(81.6)									(81.6)		(81.6)
Balance including noncontrolling interest, end of period at Dec. 31, 2022		1.6		3,699.0			731.4			(225.1)		$ 4,206.9			$ 0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock-based award activity	35.1			35.1
Partial exchange of convertible notes due 2025 and partial unwind of capped call transactions. (Note 16)	24.2	0.1		24.1
Net (loss) income	(100.2)						(100.2)
Other comprehensive loss	7.9									7.9
Other comprehensive income (loss)	7.9									7.9
Balance including noncontrolling interest, end of period at Dec. 31, 2023										(217.2)
Balance, end of period at Dec. 31, 2023	4,173.9	1.7		3,758.2			631.2			(217.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock-based award activity	33.4			33.4
Net (loss) income	(1,118.6)						(1,118.6)
Other comprehensive loss	(153.9)									(153.9)
Other comprehensive income (loss)	(153.9)									(153.9)
Balance including noncontrolling interest, end of period at Dec. 31, 2024										(371.1)
Balance, end of period at Dec. 31, 2024	$ 2,934.8	$ 1.7		$ 3,791.6			$ (487.4)			$ (371.1)