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Nature of Business (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended
	Feb. 28, 2021	Jan. 31, 2021	Mar. 31, 2022	Dec. 31, 2021	May 31, 2021
Liquidity
Accumulated deficit			$ 908,214	$ 857,699
At The Market Offering
Liquidity
Number of common stock issued			0
Sales agreement amount of aggregate sale proceeds of common stock agreed to be issued					$ 300,000
Public Offering
Liquidity
Number of common stock issued		3,500,000
Aggregate net proceeds		$ 216,900
Overallotment Option
Liquidity
Number of common stock issued	525,000
Aggregate net proceeds	$ 32,600

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