Stock-Based Compensation - Narrative (Details)	3 Months Ended	12 Months Ended
	Jun. 30, 2024 shares	Dec. 31, 2024 USD ($) period shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($)
Stock Based Compensation
Stock-based compensation expense | $		$ 274,428,000	$ 191,808,000	$ 152,384,000
2015 Plan
Stock Based Compensation
Additional shares reserved for issuance	6,000,000.0
Plan extension term	10 years
Employee stock purchase plan
Stock Based Compensation
Shares reserved for issuance		4,289,349
Additional shares reserved for issuance		880,000
Shares reserved for issuance as a proportion of common stock outstanding (as a percent)		1.00%
Price in relation to fair market value of common stock on the date of grant, lower range limit (as a percent)		85.00%
Maximum number of shares a participant may receive during the period (in shares)		5,000
Maximum amount of award or purchase during a calendar year | $		$ 25,000
Maximum offering period, term		27 months
Number of expected offering periods each year | period		2
Offering period, expected term		6 months
Maximum employee contribution of employee's cash compensation (as a percent)		15.00%
Performance-based awards
Stock Based Compensation
Stock-based compensation expense | $		$ 89,800,000	$ 54,200,000	48,200,000
Shares granted		800,000
Options to purchase common stock
Stock Based Compensation
Options outstanding (in shares)		3,875,000	5,501,000
Restricted stock units
Stock Based Compensation
Number of shares vested		3,538
Shares granted		5,400
Non-employee stock options
Stock Based Compensation
Options outstanding (in shares)		0
Liability classified awards
Stock Based Compensation
Stock-based compensation expense | $		$ 1,300,000	$ 800,000	$ 600,000