Stockholders' Equity (Deficit) - At The Market Issuances (Details) - USD ($) $ in Millions	1 Months Ended	9 Months Ended
	Nov. 30, 2020	Sep. 30, 2022	Sep. 30, 2021
Stockholders' Equity (Deficit)
Number of shares sold by the entity			1,087,126
At-The-Market Issuance Sales Agreement
Stockholders' Equity (Deficit)
Number of shares sold by the entity		1,126,733
Value of shares sold by the entity		$ 137.4
Net proceeds after deducting commissions and other transactions costs		$ 134.8
At-The-Market Issuance Sales Agreement | 2021 Sales Agreement [Member]
Stockholders' Equity (Deficit)
Number of shares sold by the entity		497,043
Value of shares sold by the entity		$ 40.8
Net proceeds after deducting commissions and other transactions costs		39.8
Remaining reserved amount under shelf registration		159.2
Cowen & Co. LLC | Maximum | At-The-Market Issuance Sales Agreement
Stockholders' Equity (Deficit)
Maximum aggregate offering price	$ 200.0	$ 200.0