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Income Taxes
 3 Months Ended
Mar. 31, 2023
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The Company's provision for income taxes were immaterial for the three months ended March 31, 2023 and 2022.
The Company does not update its deferred tax assets during interim periods. Although the Company does not update its deferred tax assets during interim periods, the Company adjusted deferred tax assets and corresponding valuation allowance for the impact of the true up of the US return filing in the second quarter of 2023 upon further evaluation of deductions related to stock compensation.
The Company maintained a full valuation allowance against its deferred tax assets which were $258.2 million as of March 31, 2023. The deferred tax assets were primarily comprised of federal and state tax net operating loss carryforwards. Utilization of the net operating loss carryforwards may be subject to annual limitation due to historical or future ownership percentage change rules provided by the Internal Revenue Code of 1986, and similar state provisions. The annual limitation may result in the expiration of certain net operating loss carryforwards before their utilization.
As of March 31, 2023, the Company had unrecognized tax benefits under ASC 740 Income Taxes of $2.4 million, and no applicable interest. There were no unrecognized tax benefits that, if recognized, would affect the Company's effective tax rate as of March 31, 2023. The Company's policy is to account for interest and penalties related to uncertain tax positions as a component of income tax provision. The Company does not anticipate that the amount of unrecognized tax benefits will significantly increase or decrease within the next twelve months. Due to historical losses, all years are open to examination and adjustment by the taxing authorities.