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FAIR VALUE MEASUREMENTS
9 Months Ended
Sep. 30, 2021
Fair Value Disclosures [Abstract]  
FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS
The accounting standard for fair value measurements provides a framework for measuring fair value and requires expanded disclosures regarding fair value measurements. Fair value is defined as the price that would be received for an asset or the “exit price” that would be paid to transfer a liability in the principal or most advantageous market in an orderly transaction between independent market participants on the measurement date. The Company measures financial assets and liabilities at fair value at each reporting period using a fair value hierarchy, which requires the Company to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. A financial instrument classification within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. This hierarchy prioritizes the inputs into three broad levels as follows:
Level 1—Quoted prices (unadjusted) in active markets for identical assets or liabilities.
Level 2—Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
Level 3—Inputs that are generally unobservable and typically reflect management’s estimates of assumptions that market participants would use in pricing the asset or liability. Factors used to develop the estimated fair value are unobservable inputs that are not supported by market activity. The sensitivity of the fair value measurement to changes in unobservable inputs may result in a significantly higher or lower measurement.
Level 1 investments consist solely of short-term and long-term restricted cash valued at amortized cost that approximates fair value. Level 2 investments consist solely of certificate of deposits. Level 3 liabilities consist of contingent forward contract liability, convertible preferred stock warrant liability and common stock warrant liability, in which the fair value was measured upon issuance and is remeasured at each reporting date. The valuation methodology and underlying assumptions are discussed further in Note 6 “Contingent Forward Contracts,” Note 7 “Convertible Preferred Stock Warrant Liability” and Note 8 “Common Stock Warrant Liability”.
The following table sets forth the Company’s financial assets subject to fair value measurements on a recurring basis by level within the fair value hierarchy as of September 30, 2021 (in thousands):
Level 1Level 2Level 3Total
Assets:
Short-term investment—
Certificates of deposit$— $505 $— $505 
Restricted cash35,686 — — 35,686 
Total assets$35,686 $505 $— $36,191 
Liabilities:
Common stock warrant liability$— $— $836,835 $836,835 
Total liabilities$— $— $836,835 $836,835 
The following table sets forth the Company’s financial assets and liabilities subject to fair value measurements on a recurring basis by level within the fair value hierarchy as of December 31, 2020 (in thousands):
Level 1Level 2Level 3Total
Assets:
Short-term investment—
Certificates of deposit$— $505 $— $505 
Restricted cash26,006 — — 26,006 
Total assets$26,006 $505 $— $26,511 
Liabilities:
Convertible preferred stock warrant liability$— $— $2,960 $2,960 
Total liabilities$— $— $2,960 $2,960 

A reconciliation of the contingent forward contract liability, convertible preferred stock warrant liability and common stock warrant liability measured and recorded at fair value on a recurring basis is as follows (in thousands):
Nine Months Ended
September 30, 2021
Nine Months Ended
September 30, 2020
Contingent Forward Contract LiabilityConvertible Preferred Stock Warrant LiabilityCommon Stock Warrant LiabilityContingent Forward Contract LiabilityConvertible Preferred Stock Warrant Liability
Fair value-beginning of period$— $2,960 $— $30,844 $1,755 
Issuance2,167,332 — 812,048 793 — 
Change in fair value454,546 6,976 24,787 8,719 171 
Settlement(2,621,878)(9,936)— (39,563)— 
Fair value-end of period$— $— 836,835 $793 $1,926