Stockholders' Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended		9 Months Ended
	Oct. 05, 2023	Feb. 09, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, authorized (in shares)			200,000,000		200,000,000		200,000,000
Common stock, issued (in shares)			81,190,772		81,190,772		78,350,984
Common stock, outstanding (in shares)			78,424,699		78,424,699		75,584,911
Common stock, par value (in dollars per share)			$ 0.001		$ 0.001		$ 0.001	$ 0.001	$ 0.001
Preferred stock, authorized (in shares)			5,000,000		5,000,000		5,000,000
Preferred stock, shares outstanding (in shares)			0		0		0
Preferred stock, issued (in shares)			0		0		0
Preferred stock, par value (in dollars per share)			$ 0.001		$ 0.001		$ 0.001
Fair value of stock options exercised					$ 2.3
Share-based compensation arrangement, options, grants in period, weighted average grant date fair value (in dollars per share)				$ 7.35	$ 6.54	$ 11.16
Dividend yield (percent)				0.00%	0.00%	0.00%
Period used to determine volatility					5 years
Accrual for cash awards						$ 11.9
Stock-based compensation expense			$ 11.3	$ 31.9	$ 4.5	$ 100.3
Subsequent Event | 2019 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in number of shares of common stock available for issuance	1,000,000
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to novested share-based compensation arrangements			$ 6.9		$ 6.9
Weighted average recognition period of unrecognized compensation cost					2 years
Stock Option | 2019 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock available for issuance (up to)			40,067,744		40,067,744
Options term (in years)					10 years
Shares reserved for future issuance			1,700,000		1,700,000
Stock Option | Subsequent Event | 2019 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in number of shares of common stock available for issuance	2,300,000
Employee Stock Purchase Plan | 2019 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock available for issuance (up to)			1,000,000		1,000,000
Shares reserved for future issuance			100,000		100,000
Incentive Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock available for issuance (up to)			6,159,009		6,159,009
Shares reserved for future issuance			1,100,000		1,100,000
Increase in number of shares of common stock available for issuance		2,790,961
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average recognition period of unrecognized compensation cost					2 years
Unrecognized compensation cost related to nonvested share-based compensation arrangements			$ 55.1		$ 55.1
Minimum | RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					3 years
Maximum | RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					4 years