Financial Instruments	3 Months Ended
Mar. 31, 2021
Financial Instruments [Abstract]
Financial Instruments	15. FINANCIAL INSTRUMENTS The Company primarily applies the market approach to determine the fair value of financial instruments that are measured at fair value on a recurring basis. There were no changes to its valuation techniques used to determine the fair value of financial instruments during the three months ended March 31, 2021. The Company’s financial assets and liabilities which are measured at fair value on a recurring basis were comprised of cash, cash equivalents, and restricted cash of $141,919 and $229,381 as of March 31, 2021 and December 31, 2020, respectively, based on Level 1 inputs. The Company estimates the fair value of the warrant liability using the Black-Scholes option-pricing model at each balance sheet date or when specific events occur. As discussed in Note 13, in connection with the Company’s IPO the warrant fair value was updated on August 19, 2020 with the change in fair value recorded in current period earnings as other expense in the condensed consolidated statement of operations and reclassified to equity. During the three months ended March 31, 2020, a loss of $1,146 was recorded in general and administrative expense in the condensed consolidated statements of operations due to the change in the fair value of the warrant liability.

Financial Instruments

3 Months Ended

Mar. 31, 2021

15. FINANCIAL INSTRUMENTS

The Company primarily applies the market approach to determine the fair value of financial instruments that are measured at fair value on a recurring basis. There were no changes to its valuation techniques used to determine the fair value of financial instruments during the three months ended March 31, 2021. The Company’s financial assets and liabilities which are measured at fair value on a recurring basis were comprised of cash, cash equivalents, and restricted cash of $141,919 and $229,381 as of March 31, 2021 and December 31, 2020, respectively, based on Level 1 inputs.

The Company estimates the fair value of the warrant liability using the Black-Scholes option-pricing model at each balance sheet date or when specific events occur. As discussed in Note 13, in connection with the Company’s IPO the warrant fair value was updated on August 19, 2020 with the change in fair value recorded in current period earnings as other expense in the condensed consolidated statement of operations and reclassified to equity. During the three months ended March 31, 2020, a loss of $1,146 was recorded in general and administrative expense in the condensed consolidated statements of operations due to the change in the fair value of the warrant liability.