Consolidated Statement Of Stockholders' Equity - USD ($) $ in Millions	Total	Common Stock	Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2021		134,800,000
Beginning balance at Dec. 31, 2021	$ 705.7	$ 1.3	$ 3,369.5	$ (2,570.7)	$ (94.4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,114.5			1,114.5
Equity-based compensation expense	91.1		91.1
Stock option exercises (in shares)		500,000
Stock option exercises	30.2	$ 0.1	30.1
Coworker Stock Purchase Plan (in shares)		200,000
Coworker Stock Purchase Plan	25.5		25.5
Dividend payments	(282.6)		1.9	(284.5)
Incentive compensation plan stock withheld for taxes	(23.1)			(23.1)
Unrealized loss from hedge accounting	(0.1)				(0.1)
Reclassification of cash flow hedge to net income	3.6				3.6
Foreign currency translation	(61.5)				(61.5)
Ending balance (in shares) at Dec. 31, 2022		135,500,000
Ending balance at Dec. 31, 2022	1,603.3	$ 1.4	3,518.1	(1,763.8)	(152.4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,104.3			1,104.3
Equity-based compensation expense	93.7		93.7
Stock option exercises (in shares)		1,000,000.0
Stock option exercises	49.3	$ 0.0	49.3
Coworker Stock Purchase Plan (in shares)		200,000
Coworker Stock Purchase Plan	28.2		28.2
Repurchases of common stock (in shares)		(2,600,000)
Repurchases of common stock	(500.0)	$ (0.1)		(499.9)
Dividend payments	(321.5)		2.0	(323.5)
Incentive compensation plan stock withheld for taxes	(40.0)			(40.0)
Unrealized loss from hedge accounting	(1.9)				(1.9)
Reclassification of cash flow hedge to net income	0.0
Foreign currency translation	29.7
Foreign currency translation and other	27.1			(2.6)	29.7
Ending balance (in shares) at Dec. 31, 2023		134,100,000
Ending balance at Dec. 31, 2023	2,042.5	$ 1.3	3,691.3	(1,525.5)	(124.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,077.8			1,077.8
Equity-based compensation expense	$ 64.7		64.7
Stock option exercises (in shares)	478,686	800,000
Stock option exercises	$ 47.0		47.0
Coworker Stock Purchase Plan (in shares)		100,000
Coworker Stock Purchase Plan	28.8		28.8
Repurchases of common stock (in shares)		(2,400,000)
Repurchases of common stock	(500.0)			(500.0)
Dividend payments	(332.1)		2.1	(334.2)
Incentive compensation plan stock withheld for taxes	(38.2)			(38.2)
Unrealized loss from hedge accounting	(2.8)				(2.8)
Reclassification of cash flow hedge to net income	0.3				0.3
Foreign currency translation	(33.0)
Foreign currency translation and other	(35.3)		0.5	(2.8)	(33.0)
Ending balance (in shares) at Dec. 31, 2024		132,600,000
Ending balance at Dec. 31, 2024	$ 2,352.7	$ 1.3	$ 3,834.4	$ (1,322.9)	$ (160.1)