CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (UNAUDITED) - 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		69,511,000
Balance at beginning of period at Dec. 31, 2022	$ 476.4	$ 0.1	$ 1,040.6	$ (584.3)	$ 20.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of options to purchase common stock (in shares)		183,000
Exercise of options to purchase common stock	12.3		12.3
Issuance of shares for employee stock purchase plan (in shares)		23,000
Issuance of shares for employee stock purchase plan	5.5		5.5
Stock-based compensation expense	25.2		25.2
Restricted stock units vested, net of shares withheld for taxes (in shares)		87,000
Restricted stock units vested, net of shares withheld for taxes	(12.9)		(12.9)
Net income	51.1			51.1
Other comprehensive income (loss)	(3.7)				(3.7)
Ending balance (in shares) at Jun. 30, 2023		69,804,000
Balance at the end of period at Jun. 30, 2023	553.9	$ 0.1	1,070.7	(533.2)	16.3
Beginning balance (in shares) at Mar. 31, 2023		69,694,000
Balance at beginning of period at Mar. 31, 2023	502.8	$ 0.1	1,047.3	(560.5)	15.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of options to purchase common stock (in shares)		73,000
Exercise of options to purchase common stock	6.3		6.3
Issuance of shares for employee stock purchase plan (in shares)		23,000
Issuance of shares for employee stock purchase plan	5.5		5.5
Stock-based compensation expense	13.1		13.1
Restricted stock units vested, net of shares withheld for taxes (in shares)		14,000
Restricted stock units vested, net of shares withheld for taxes	(1.5)		(1.5)
Net income	27.3			27.3
Other comprehensive income (loss)	0.4				0.4
Ending balance (in shares) at Jun. 30, 2023		69,804,000
Balance at the end of period at Jun. 30, 2023	$ 553.9	$ 0.1	1,070.7	(533.2)	16.3
Beginning balance (in shares) at Dec. 31, 2023	69,907,289	69,907,000
Balance at beginning of period at Dec. 31, 2023	$ 732.7	$ 0.1	1,102.6	(378.0)	8.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of options to purchase common stock (in shares)		96,000
Exercise of options to purchase common stock	6.9		6.9
Issuance of shares for employee stock purchase plan (in shares)		40,000
Issuance of shares for employee stock purchase plan	6.0		6.0
Stock-based compensation expense	31.2		31.2
Restricted stock units vested, net of shares withheld for taxes (in shares)		69,000
Restricted stock units vested, net of shares withheld for taxes	(6.1)		(6.1)
Net income	240.1			240.1
Other comprehensive income (loss)	$ (12.4)				(12.4)
Ending balance (in shares) at Jun. 30, 2024	70,112,039	70,112,000
Balance at the end of period at Jun. 30, 2024	$ 998.4	$ 0.1	1,140.6	(137.9)	(4.4)
Beginning balance (in shares) at Mar. 31, 2024		70,020,000
Balance at beginning of period at Mar. 31, 2024	790.7	$ 0.1	1,117.6	(326.5)	(0.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of options to purchase common stock (in shares)		41,000
Exercise of options to purchase common stock	1.1		1.1
Issuance of shares for employee stock purchase plan (in shares)		40,000
Issuance of shares for employee stock purchase plan	6.0		6.0
Stock-based compensation expense	17.0		17.0		0.0
Restricted stock units vested, net of shares withheld for taxes (in shares)		11,000
Restricted stock units vested, net of shares withheld for taxes	(1.1)		(1.1)
Net income	188.6			188.6
Other comprehensive income (loss)	$ (3.9)				(3.9)
Ending balance (in shares) at Jun. 30, 2024	70,112,039	70,112,000
Balance at the end of period at Jun. 30, 2024	$ 998.4	$ 0.1	$ 1,140.6	$ (137.9)	$ (4.4)