CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (unaudited) - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022		96.5
Beginning balance at Dec. 31, 2022	$ 1,707.8	$ 0.1	$ 2,122.4	$ (7.9)	$ (406.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	18.9				18.9
Other comprehensive income (loss), net of tax	6.8			6.8
Stock-based compensation expense	108.4		108.4
Issuances of common stock under stock plans (in shares)		1.1
Issuances of common stock under stock plans	11.1		11.1
Ending balance (in shares) at Jun. 30, 2023		97.6
Ending balance at Jun. 30, 2023	1,853.0	$ 0.1	2,241.9	(1.1)	(387.9)
Beginning balance (in shares) at Mar. 31, 2023		97.5
Beginning balance at Mar. 31, 2023	1,684.5	$ 0.1	2,170.5	(2.7)	(483.4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	95.5				95.5
Other comprehensive income (loss), net of tax	1.6			1.6
Stock-based compensation expense	68.5		68.5
Issuances of common stock under stock plans (in shares)		0.1
Issuances of common stock under stock plans	2.9		2.9
Ending balance (in shares) at Jun. 30, 2023		97.6
Ending balance at Jun. 30, 2023	1,853.0	$ 0.1	2,241.9	(1.1)	(387.9)
Beginning balance (in shares) at Dec. 31, 2023		98.7
Beginning balance at Dec. 31, 2023	2,232.0	$ 0.1	2,382.0	7.0	(157.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	108.4				108.4
Other comprehensive income (loss), net of tax	(4.5)			(4.5)
Stock-based compensation expense	87.6		87.6
Issuances of common stock under stock plans (in shares)		2.2
Issuances of common stock under stock plans	85.7		85.7
Ending balance (in shares) at Jun. 30, 2024		100.9
Ending balance at Jun. 30, 2024	2,509.2	$ 0.1	2,555.3	2.5	(48.7)
Beginning balance (in shares) at Mar. 31, 2024		100.6
Beginning balance at Mar. 31, 2024	2,386.1	$ 0.1	2,496.4	3.3	(113.7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	65.0				65.0
Other comprehensive income (loss), net of tax	(0.8)			(0.8)
Stock-based compensation expense	43.1		43.1
Issuances of common stock under stock plans (in shares)		0.3
Issuances of common stock under stock plans	15.8		15.8
Ending balance (in shares) at Jun. 30, 2024		100.9
Ending balance at Jun. 30, 2024	$ 2,509.2	$ 0.1	$ 2,555.3	$ 2.5	$ (48.7)