CONDENSED 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, 2024		72,720,866
Beginning 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 shares)		492,005
Exercise of stock options and distribution of restricted stock units	1.5		1.5
Stock-based compensation	10.3		10.3
Net loss	(62.4)			(62.4)
Other comprehensive income (loss)	2.7				2.7
Ending balance (in shares) at Mar. 31, 2025		73,212,871
Ending balance at Mar. 31, 2025	545.5	$ 0.0	1,910.1	(1,361.2)	(3.4)
Beginning balance (in shares) at Dec. 31, 2024		72,720,866
Beginning balance at Dec. 31, 2024	593.4	$ 0.0	1,898.3	(1,298.8)	(6.1)
Increase (Decrease) in Stockholders' Deficit [Roll Forward]
Net loss	(106.3)
Ending balance (in shares) at Jun. 30, 2025		73,819,710
Ending balance at Jun. 30, 2025	527.1	$ 0.0	1,928.0	(1,405.1)	4.2
Beginning balance (in shares) at Mar. 31, 2025		73,212,871
Beginning balance at Mar. 31, 2025	545.5	$ 0.0	1,910.1	(1,361.2)	(3.4)
Increase (Decrease) in Stockholders' Deficit [Roll Forward]
Exercise of stock options and distribution of restricted stock units (in shares)		606,839
Exercise of stock options and distribution of restricted stock units	2.5		2.5
Stock-based compensation	15.4		15.4
Net loss	(43.9)			(43.9)
Other comprehensive income (loss)	7.6				7.6
Ending balance (in shares) at Jun. 30, 2025		73,819,710
Ending balance at Jun. 30, 2025	$ 527.1	$ 0.0	1,928.0	(1,405.1)	4.2
Beginning balance (in shares) at Dec. 31, 2025	75,907,215	75,907,215
Beginning balance at Dec. 31, 2025	$ 533.6	$ 0.0	1,991.5	(1,464.3)	6.4
Increase (Decrease) in Stockholders' Deficit [Roll Forward]
Exercise of stock options and distribution of restricted stock units (in shares)		879,505
Exercise of stock options and distribution of restricted stock units	4.7		4.7
Stock-based compensation	21.2		21.2
Net loss	(35.8)			(35.8)
Other comprehensive income (loss)	(5.7)				(5.7)
Ending balance (in shares) at Mar. 31, 2026		76,786,720
Ending balance at Mar. 31, 2026	$ 518.0	$ 0.0	2,017.4	(1,500.1)	0.7
Beginning balance (in shares) at Dec. 31, 2025	75,907,215	75,907,215
Beginning balance at Dec. 31, 2025	$ 533.6	$ 0.0	1,991.5	(1,464.3)	6.4
Increase (Decrease) in Stockholders' Deficit [Roll Forward]
Net loss	$ (79.2)
Ending balance (in shares) at Jun. 30, 2026	77,326,718	77,326,718
Ending balance at Jun. 30, 2026	$ 499.5	$ 0.0	2,043.3	(1,543.5)	(0.3)
Beginning balance (in shares) at Mar. 31, 2026		76,786,720
Beginning balance at Mar. 31, 2026	518.0	$ 0.0	2,017.4	(1,500.1)	0.7
Increase (Decrease) in Stockholders' Deficit [Roll Forward]
Exercise of stock options and distribution of restricted stock units (in shares)		539,998
Exercise of stock options and distribution of restricted stock units	1.4		1.4
Stock-based compensation	24.5		24.5
Net loss	(43.4)			(43.4)
Other comprehensive income (loss)	$ (1.0)				(1.0)
Ending balance (in shares) at Jun. 30, 2026	77,326,718	77,326,718
Ending balance at Jun. 30, 2026	$ 499.5	$ 0.0	$ 2,043.3	$ (1,543.5)	$ (0.3)