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CONSOLIDATED STATEMENTS OF STOCKHOLDER'S EQUITY (Parenthetical) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
ATM Facility Member    
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs $ 0.5  
Follow-on Public Offering [Member]    
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs   $ 1.0