Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Jun. 30, 2015
Employee Stock [Member]
Stock Based Compensation
Shares reserved for issuance	3,964,612		3,964,612			3,451,495
Shares reserved for issuance as a proportion of common stock outstanding (as a percent)			4.00%
Number of Shares Purchased			218,649
Employee Stock [Member] | Minimum
Stock Based Compensation
Shares reserved for issuance	880,000		880,000
Additional shares reserved for issuance	3,500,000		3,500,000
Shares reserved for issuance as a proportion of common stock outstanding (as a percent)			1.00%
Performance-based awards
Stock Based Compensation
Stock-based compensation expense	$ 10,200	$ 14,100	$ 17,500	$ 27,500
Options to purchase common stock
Stock Based Compensation
Stock-based compensation expense	$ 44,470	$ 40,973	$ 85,165	$ 76,060
Shares granted			5,466,000
Shares available for issuance	1,573,000		1,573,000		3,263,000
Restricted stock units
Stock Based Compensation
Number of shares vested			2,024,000
Shares granted			5,466,000