Summary of Significant Accounting Policies (Policies)	6 Months Ended
Jun. 30, 2024
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (U.S. GAAP) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments, consisting of normal recurring adjustments considered necessary for fair presentation in accordance with U.S. GAAP. The condensed consolidated balance sheet as of June 30, 2024 was derived from audited annual consolidated financial statements but does not include all annual disclosures required by U.S. GAAP. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2023. The results of operations for the three and six months ended June 30, 2024 are not necessarily indicative of the results to be expected for the full year or any other future periods.
Principles of Consolidation	These unaudited condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, Aurinia Pharma U.S., Inc. (Delaware incorporated) and Aurinia Pharma Limited (UK incorporated). All intercompany balances and transactions have been eliminated in consolidation and operate in one segment. These unaudited condensed consolidated financial statements are presented in U.S. dollars, which is the Company's and all of its foreign subsidiaries' functional currency. Therefore, there is no currency translation adjustment upon consolidation as the remeasurement of gains or losses are recorded in the condensed consolidated statements of operations. All monetary assets and liabilities denominated in a foreign currency are remeasured into U.S. dollars at the exchange rate on the balance sheet date. Non-monetary assets and liabilities (along with their related expenses) are translated at the rate of exchange in effect on the date assets were acquired. Monetary income and expense items are translated at the average foreign currency rate. Foreign exchange gains and losses arising on translation or settlement of a foreign currency denominated monetary item are included in the consolidated statements of operations and recorded in other income, net.
Product Revenues	Product Revenues We sell LUPKYNIS (voclosporin) primarily to specialty pharmacies and a specialty distributor, and directly to our ex-U.S. partner Otsuka. These customers subsequently distribute the Company's products to patients and healthcare providers. Revenues from product sales are recognized when the customer obtains control of the Company's product, which typically occurs upon delivery to the customer. Reserves for discounts and allowances: Product sales are recorded at the net sales price, which includes estimates of variable consideration for which reserves are established. These reserves are based on estimates of the amounts earned or to be claimed on the related sales and are classified as reductions of accounts receivable (if the amount is payable to the customer) or a liability (if the amount is payable to a party other than the customer). The Company's estimates of reserves established for variable consideration are calculated based upon utilizing the expected value method. The transaction price, which includes variable consideration reflecting the impact of discounts and allowances, may be subject to constraint and is included in the net sales price only to the extent that it is probable that a significant reversal of the amount of the cumulative revenues recognized will not occur in a future period. Amounts related to such items are estimated at contract inception and updated at the end of each reporting period as additional information becomes available. Significant judgment is required in estimating variable consideration. In making these estimates, the Company considers historical data, including patient mix and inventory sold to customers that has not yet been dispensed. The Company uses a data aggregator and historical claims to estimate variable consideration for inventory sold to customers, including specialty pharmacies and specialty distributors, that has not yet been dispensed to patients. Actual amounts may ultimately differ from the Company's estimates. If actual results vary, the Company adjusts these estimates, which could have an effect on earnings in the period of adjustment. As of June 30, 2024, the Company did not have any material adjustments to variable consideration estimates based on actual results. These specific adjustments are detailed further in the Company's Annual Report on Form 10-K for the year ended December 31, 2023.
Major Customers	Major Customers: The Company currently has two main specialty pharmacies for U.S. commercial sales of LUPKYNIS and a collaboration partnership with Otsuka for sales of semi-finished product and royalty, collaboration and manufacturing services revenue in the Otsuka Territories.
Accounts Receivable, net	Accounts Receivable, net: Accounts receivable are stated at their net realizable value. The Company's accounts receivable primarily represent amounts due to the Company from product sales and from its Otsuka collaboration agreement (Note 12). As of June 30, 2024 and December 31, 2023, accounts receivable, net are $25.5 million and $24.1 million, respectively. The Company's standard credit terms range from 30 to 45 days. The Company does not assess whether a contract has a significant financing component if the expectation at contract inception is such that the period between the transfer of the promised good to the customer and receipt of payment will be one year or less. The Company estimates the allowances using the current expected credit loss, or CECL, model. Under the CECL model, the allowances reflect the net amount expected to be collected from the accounts receivable. Aurinia evaluates the collectability of these cash flows based on the asset’s amortized cost, the risk of loss even when that risk is remote, losses over an asset’s contractual life, and other relevant information available to the Company. Accounts receivable balances are written off against the allowance when it is probable that the receivable will not be collected. Given the nature of the Company's accounts receivable, it determined that an allowance for current expected credit losses was nil as of June 30, 2024 and December 31, 2023.
Share-Based Compensation	Share-Based Compensation: The Company follows ASC Topic 718, Compensation - Stock Compensation (ASC 718), which requires the measurement and recognition of compensation expense, based on estimated fair values, for all share-based awards made to employees and directors. The Company records compensation expense based on the fair value on the grant date using the graded accelerated vesting method for all share-based payments related to stock options, performance awards (PAs), restricted stock units (RSUs) and purchases under the Company's 2021 Employee Share Purchase Plan (ESPP). The estimated fair value of performance-based awards is measured on the grant date and is recognized when it is determined that it is probable that the performance condition will be achieved. The Company has elected a policy for all share-based awards to estimate forfeitures based on historical forfeiture experience at the time of grant and revise in subsequent periods if actual forfeitures differ from those estimates.
Restructuring Expenses	Restructuring Expenses: Restructuring expense consist primarily of employee severance, contract termination costs and other costs. Liabilities for costs associated with a restructuring activity are recognized when the liability is incurred and are measured at fair value. According to ASC 420, Exit or Disposal Cost Obligations, one-time employee severance and termination benefits are expensed at the date the entity notifies the employee of the plan, unless the employee must provide future service, in which case the benefits are expensed in the period when the service ends. One-time termination benefits include severance, continuation of health insurance coverage for certain employees, and other benefits such as outplacement support services for a specified period of time.
Common Shares	Common Shares: The Company’s shares have no par value or stated value and therefore, upon issuance or repurchase of shares, all amounts related to the shares are recorded under common shares on the balance sheet. The value of common shares includes cash amounts paid or received for the shares and the fair value of equity awards and warrants. Amounts for common shares are offset by share issue costs or transactions costs associated with repurchases or equity offerings.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In December 2023, the FASB issued final guidance in ASU No. 2023-09, Income Taxes (ASC 740): Improvements to Income Tax Disclosures requiring entities to provide additional information in the rate reconciliation and disclosures about income taxes paid. For public business entities, the guidance is effective for annual periods beginning after December 15, 2024. The Company is not early adopting, and therefore, this ASU is not adopted in the current period. The Company does not expect this ASU to have a material impact on the consolidated financial statements. In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures which requires public entities to disclose significant segment expenses regularly provided to the chief operating decision-maker. Public entities with a single reporting segment have to provide all disclosures required by ASC 280, including the significant segment expense disclosures. For public business entities, the guidance is effective for annual periods beginning after December 15, 2023. This ASU does not have a material impact on the consolidated financial statements.

Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2024

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (U.S. GAAP) for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments, consisting of normal recurring adjustments considered necessary for fair presentation in accordance with U.S. GAAP. The condensed consolidated balance sheet as of June 30, 2024 was derived from audited annual consolidated financial statements but does not include all annual disclosures required by U.S. GAAP. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2023. The results of operations for the three and six months ended June 30, 2024 are not necessarily indicative of the results to be expected for the full year or any other future periods.

Principles of Consolidation

These unaudited condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, Aurinia Pharma U.S., Inc. (Delaware incorporated) and Aurinia Pharma Limited (UK incorporated). All intercompany balances and transactions have been eliminated in consolidation and operate in one segment.

These unaudited condensed consolidated financial statements are presented in U.S. dollars, which is the Company's and all of its foreign subsidiaries' functional currency. Therefore, there is no currency translation adjustment upon consolidation as the remeasurement of gains or losses are recorded in the condensed consolidated statements of operations. All monetary assets and liabilities denominated in a foreign currency are remeasured into U.S. dollars at the exchange rate on the balance sheet date. Non-monetary assets and liabilities (along with their related expenses) are translated at the rate of exchange in effect on the date assets were acquired. Monetary income and expense items are translated at the average foreign currency rate. Foreign exchange gains and losses arising on translation or settlement of a foreign currency denominated monetary item are included in the consolidated statements of operations and recorded in other income, net.

Product Revenues

We sell LUPKYNIS (voclosporin) primarily to specialty pharmacies and a specialty distributor, and directly to our ex-U.S. partner Otsuka. These customers subsequently distribute the Company's products to patients and healthcare providers. Revenues from product sales are recognized when the customer obtains control of the Company's product, which typically occurs upon delivery to the customer.

Reserves for discounts and allowances: Product sales are recorded at the net sales price, which includes estimates of variable consideration for which reserves are established. These reserves are based on estimates of the amounts earned or to be claimed on the related sales and are classified as reductions of accounts receivable (if the amount is payable to the customer) or a liability (if the amount is payable to a party other than the customer).

The Company's estimates of reserves established for variable consideration are calculated based upon utilizing the expected value method. The transaction price, which includes variable consideration reflecting the impact of discounts and allowances, may be subject to constraint and is included in the net sales price only to the extent that it is probable that a significant reversal of the amount of the cumulative revenues recognized will not occur in a future period. Amounts related to such items are estimated at contract inception and updated at the end of each reporting period as additional information becomes available.

Significant judgment is required in estimating variable consideration. In making these estimates, the Company considers historical data, including patient mix and inventory sold to customers that has not yet been dispensed. The Company uses a data aggregator and historical claims to estimate variable consideration for inventory sold to customers, including specialty pharmacies and specialty distributors, that has not yet been dispensed to patients. Actual amounts may ultimately differ from the Company's estimates. If actual results vary, the Company adjusts these estimates, which could have an effect on earnings in the period of adjustment. As of June 30, 2024, the Company did not have any material adjustments to variable consideration estimates based on actual results. These specific adjustments are detailed further in the Company's Annual Report on Form 10-K for the year ended December 31, 2023.

Major Customers

Major Customers: The Company currently has two main specialty pharmacies for U.S. commercial sales of LUPKYNIS and a collaboration partnership with Otsuka for sales of semi-finished product and royalty, collaboration and manufacturing services revenue in the Otsuka Territories.

Accounts Receivable, net

Accounts Receivable, net: Accounts receivable are stated at their net realizable value. The Company's accounts receivable primarily represent amounts due to the Company from product sales and from its Otsuka collaboration agreement (Note 12). As of June 30, 2024 and December 31, 2023, accounts receivable, net are $25.5 million and $24.1 million, respectively. The Company's standard credit terms range from 30 to 45 days. The Company does not assess whether a contract has a significant financing component if the expectation at contract inception is such that the period between the transfer of the promised good to the customer and receipt of payment will be one year or less. The Company estimates the allowances using the current expected credit loss, or CECL, model. Under the CECL model, the allowances reflect the net amount expected to be collected from the accounts receivable. Aurinia evaluates the collectability of these cash flows based on the asset’s amortized cost, the risk of loss even when that risk is remote, losses over an asset’s contractual life, and other relevant information available to the Company. Accounts receivable balances are written off against the allowance when it is probable that the receivable will not be collected. Given the nature of the Company's accounts receivable, it determined that an allowance for current expected credit losses was nil as of June 30, 2024 and December 31, 2023.

Share-Based Compensation

Share-Based Compensation: The Company follows ASC Topic 718, Compensation - Stock Compensation (ASC 718), which requires the measurement and recognition of compensation expense, based on estimated fair values, for all share-based awards made to employees and directors. The Company records compensation expense based on the fair value on the grant date using the graded accelerated vesting method for all share-based payments related to stock options, performance awards (PAs), restricted stock units (RSUs) and purchases under the Company's 2021 Employee Share Purchase Plan (ESPP). The estimated fair value of performance-based awards is measured on the grant date and is recognized when it is determined that it is probable that the performance condition will be achieved. The Company has elected a policy for all share-based awards to estimate forfeitures based on historical forfeiture experience at the time of grant and revise in subsequent periods if actual forfeitures differ from those estimates.

Restructuring Expenses

Restructuring Expenses: Restructuring expense consist primarily of employee severance, contract termination costs and other costs. Liabilities for costs associated with a restructuring activity are recognized when the liability is incurred and are measured at fair value. According to ASC 420, Exit or Disposal Cost Obligations, one-time employee severance and termination benefits are expensed at the date the entity notifies the employee of the plan, unless the employee must provide future service, in which case the benefits are expensed in the period when the service ends. One-time termination benefits include severance, continuation of health insurance coverage for certain employees, and other benefits such as outplacement support services for a specified period of time.

Common Shares

Common Shares: The Company’s shares have no par value or stated value and therefore, upon issuance or repurchase of shares, all amounts related to the shares are recorded under common shares on the balance sheet. The value of common shares includes cash amounts paid or received for the shares and the fair value of equity awards and warrants. Amounts for common shares are offset by share issue costs or transactions costs associated with repurchases or equity offerings.

Recent Accounting Pronouncements

In December 2023, the FASB issued final guidance in ASU No. 2023-09, Income Taxes (ASC 740): Improvements to Income Tax Disclosures requiring entities to provide additional information in the rate reconciliation and disclosures about income taxes paid. For public business entities, the guidance is effective for annual periods beginning after December 15, 2024. The Company is not early adopting, and therefore, this ASU is not adopted in the current period. The Company does not expect this ASU to have a material impact on the consolidated financial statements.

In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures which requires public entities to disclose significant segment expenses regularly provided to the chief operating decision-maker. Public entities with a single reporting segment have to provide all disclosures required by ASC 280, including the significant segment expense disclosures. For public business entities, the guidance is effective for annual periods beginning after December 15, 2023. This ASU does not have a material impact on the consolidated financial statements.