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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIT) (Parenthetical) - USD ($) $ in Millions | 3 Months Ended
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Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020
Statement of Stockholders' Equity [Abstract] |  |  |  |  |  |
Issuance of common stock, issuance costs | $ 1.2 | $ 2.0 | $ 2.2 | $ 0.3 | $ 0.1 | $ 0.1

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- References No definition available. + Details
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