Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Shares	Common Stock and Additional Paid-in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2023		320.3
Beginning balance at Dec. 31, 2023	$ 4,492.7		$ 6,740.0	$ 49.1	$ (2,296.4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(0.8)				(0.8)
Other comprehensive income (loss), net	(37.0)			(37.0)
Issuance of common stock (in shares)		5.0
Issuance of common stock	32.1		32.1
Shares withheld for tax withholding on vesting of restricted stock and other (in shares)		(0.4)
Shares withheld for tax withholding on vesting of restricted stock and other	(14.6)		(4.8)		(9.8)
Share-based compensation expense	80.2		80.2
Payments of cash dividends	(71.4)		(71.4)
Ending balance (in shares) at Mar. 31, 2024		324.9
Ending balance at Mar. 31, 2024	$ 4,481.2		6,776.1	12.1	(2,307.0)
Beginning balance (in shares) at Dec. 31, 2024	332.6	332.6
Beginning balance at Dec. 31, 2024	$ 4,784.2		6,810.2	(5.6)	(2,020.4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	64.1				64.1
Other comprehensive income (loss), net	11.5			11.5
Issuance of common stock (in shares)		2.2
Issuance of common stock	0.1		0.1
Shares withheld for tax withholding on vesting of restricted stock and other (in shares)		(0.5)
Shares withheld for tax withholding on vesting of restricted stock and other	(17.0)		(5.5)		(11.5)
Share-based compensation expense	59.6		59.6
Payments of cash dividends	$ (73.4)		(73.4)
Ending balance (in shares) at Mar. 31, 2025	334.3	334.3
Ending balance at Mar. 31, 2025	$ 4,829.1		$ 6,791.0	$ 5.9	$ (1,967.8)