Stockholders' Equity (Deficit)	3 Months Ended
	Mar. 31, 2022
Stockholders' Equity Note [Abstract]
Stockholders' Equity (Deficit)	Stockholders' Equity (Deficit)During the three months ended March 31, 2022, the Company sold 2.2 million of shares of its common stock resulting in net proceeds of approximately $179 million, under its most recent At Market Issuance Sales agreement entered in June 2021 (the “June 2021 Sales Agreement”), which allows it to issue and sell up to $500 million in gross proceeds of shares of its common stock. As of March 31, 2022, the remaining balance under the June 2021 Sales Agreement was approximately $318 million.During the three months ended March 31, 2021, the Company sold 2.6 million shares of its common stock resulting in net proceeds of approximately $565 million, under its various At Market Issuance Sales agreements.