CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2022		69,275,030
Beginning balance at Dec. 31, 2022	$ 866.8	$ 0.0	$ 1,754.1	$ (859.7)	$ (27.6)
Increase (Decrease) in Stockholders' Deficit [Roll Forward]
Exercise of stock options and distribution of restricted stock units (in share)		888,673
Exercise of stock options and distribution of restricted stock units	0.5		0.5
Stock-based compensation	59.9		59.9
Net Loss	(236.9)			(236.9)
Other comprehensive income	18.6				18.6
Ending balance (in shares) at Dec. 31, 2023		70,163,703
Ending balance at Dec. 31, 2023	708.9	$ 0.0	1,814.5	(1,096.6)	(9.0)
Increase (Decrease) in Stockholders' Deficit [Roll Forward]
Exercise of stock options and distribution of restricted stock units (in share)		2,376,082
Exercise of stock options and distribution of restricted stock units	19.3		19.3
Stock-based compensation	64.5		64.5
Net Loss	(202.2)			(202.2)
Other comprehensive income	$ 2.9				2.9
Ending balance (in shares) at Dec. 31, 2024	72,720,866	72,720,866
Ending balance at Dec. 31, 2024	$ 593.4	$ 0.0	1,898.3	(1,298.8)	(6.1)
Increase (Decrease) in Stockholders' Deficit [Roll Forward]
Exercise of stock options and distribution of restricted stock units (in share)		3,186,349
Exercise of stock options and distribution of restricted stock units	31.9		31.9
Exercise of warrant shares (in shares)		181,081
Stock-based compensation	61.3		61.3
Net Loss	(165.5)			(165.5)
Other comprehensive income	$ 12.5				12.5
Ending balance (in shares) at Dec. 31, 2025	75,907,215	75,907,215
Ending balance at Dec. 31, 2025	$ 533.6	$ 0.0	$ 1,991.5	$ (1,464.3)	$ 6.4