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Summary of significant accounting policies
9 Months Ended
Sep. 30, 2022
Accounting Policies [Abstract]  
Summary of significant accounting policies Summary of significant accounting policies
Basis of presentation
The condensed consolidated financial statements are prepared in accordance with U.S. GAAP as defined by the Financial Accounting Standards Board (“FASB”). The condensed consolidated financial statements include the Company’s wholly-owned subsidiaries and entities under its control. The Company has eliminated all intercompany transactions and accounts.
Cash and cash equivalents
The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents. Cash and cash equivalents consist of deposits with commercial banks in checking and interest-bearing accounts, highly liquid money market funds, and U.S. Treasury securities.
Investments
The Company’s short-term investments include funds invested in highly liquid money market funds, U.S. Treasury securities and corporate debt securities with original maturities at the date of purchase greater than three months but less than one year. These investments are classified as available-for-sale debt securities, which are recorded at fair value based on quoted prices in active markets.
If the estimated fair value of a debt security is below its amortized cost basis, the Company evaluates whether it is more likely than not that the Company will be required to sell the security before its anticipated recovery in market value and whether credit losses exist for the related securities. A credit loss exists if the present value of expected cash flows is less than the amortized cost basis of the security. Credit-related losses are recognized as an allowance for credit losses on the balance sheet with a corresponding adjustment to earnings. Unrealized gains and losses that are unrelated to credit deterioration are reported in accumulated other comprehensive income (loss). Purchase premiums and discounts are recognized as interest income using the interest method over the terms of the securities. Realized gains and losses, and declines in fair value deemed to be other than temporary, are reflected in our condensed consolidated statements of operations and comprehensive loss. The Company uses the specific identification method to compute gains and losses on investments.
There have been no other material changes in the accounting policies from those disclosed in the audited consolidated financial statements and the related notes included in the Annual Report on Form 10-K for the year ended December 31, 2021, which was filed with the SEC on March 22, 2022.