Condensed Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) $ in Millions	Total	Common stock	Additional paid-in capital	Accumulated other comprehensive loss	Accumulated deficit
Beginning balance at Dec. 31, 2021	$ 967.8	$ 0.8	$ 1,226.3	$ (5.1)	$ (254.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under stock-based compensation plans, net of shares exchanged for withholding tax	(4.8)		(4.8)
Stock-based payment expense	10.1		10.1
Net loss	(20.5)				(20.5)
Other comprehensive (loss) income, net of tax	(2.5)			(2.5)
Ending balance at Mar. 31, 2022	950.1	0.8	1,231.6	(7.6)	(274.7)
Beginning balance at Dec. 31, 2021	967.8	0.8	1,226.3	(5.1)	(254.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(34.6)
Ending balance at Jun. 30, 2022	947.4	0.8	1,244.3	(8.9)	(288.8)
Beginning balance at Mar. 31, 2022	950.1	0.8	1,231.6	(7.6)	(274.7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under stock-based compensation plans, net of shares exchanged for withholding tax	2.3		2.3
Stock-based payment expense	10.4		10.4
Net loss	(14.1)				(14.1)
Other comprehensive (loss) income, net of tax	(1.3)			(1.3)
Ending balance at Jun. 30, 2022	947.4	0.8	1,244.3	(8.9)	(288.8)
Beginning balance at Dec. 31, 2022	885.8	0.8	1,260.1	(8.9)	(366.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under stock-based compensation plans, net of shares exchanged for withholding tax	(4.9)		(4.9)
Stock-based payment expense	7.5		7.5
Net loss	(54.7)				(54.7)
Other comprehensive (loss) income, net of tax	1.5			1.5
Ending balance at Mar. 31, 2023	835.2	0.8	1,262.7	(7.4)	(420.9)
Beginning balance at Dec. 31, 2022	885.8	0.8	1,260.1	(8.9)	(366.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(170.8)
Ending balance at Jun. 30, 2023	735.2	0.8	1,276.8	(5.4)	(537.0)
Beginning balance at Mar. 31, 2023	835.2	0.8	1,262.7	(7.4)	(420.9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under stock-based compensation plans, net of shares exchanged for withholding tax	2.9		2.9
Stock-based payment expense	11.2		11.2
Net loss	(116.1)				(116.1)
Other comprehensive (loss) income, net of tax	2.0			2.0
Ending balance at Jun. 30, 2023	$ 735.2	$ 0.8	$ 1,276.8	$ (5.4)	$ (537.0)