XML 60 R50.htm IDEA: XBRL DOCUMENT
v3.23.3

Derivative Liabilities - Narrative (Details) - USD ($) $ in Millions | 1 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Feb. 28, 2022 | Sep. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | May 31, 2018
2018 Exit Fee |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Agreed amount for exit fee upon change of control or regulatory approval |  |  |  |  | $ 1.5
Estimated fair value |  | $ 1.5 | $ 1.2 |  |
2018 Exit Fee | Level 3 |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Fair value analysis, percentage change in probability of occurrence |  | 10.00% |  |  |
Fair value analysis, effect on fair value based on 10% change in probability of occurrence |  | $ 0.1 |  |  |
2022 Exit Fee |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Estimated fair value |  | $ 0.6 | $ 0.4 |  |
Exit fee, net product revenue threshold | $ 100.0 |  |  |  |
2022 Exit Fee | Level 3 |  |  |  |  |
Derivative [Line Items] |  |  |  |  |
Fair value analysis, percentage change in probability of occurrence |  |  |  | 10.00% |

X
- Definition Fair Value Sensitivity Analysis, Change In Probability Of Occurrence, Percentage + References No definition available. + Details
Name: | ardx_FairValueSensitivityAnalysisChangeInProbabilityOfOccurrencePercentage
Namespace Prefix: | ardx_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair Value Sensitivity Analysis, Ten Percent Change In Probability Of Occurrence, Effect On Valuation + References No definition available. + Details
Name: | ardx_FairValueSensitivityAnalysisTenPercentChangeInProbabilityOfOccurrenceEffectOnValuation
Namespace Prefix: | ardx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Loan Agreement, Exit Fee, Net Product Revenue Threshold Metric, Trailing Six Month Basis, Minimum + References No definition available. + Details
Name: | ardx_LoanAgreementExitFeeNetProductRevenueThresholdMetricTrailingSixMonthBasisMinimum
Namespace Prefix: | ardx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5C -Subparagraph (SX 210.12-13C(Column E)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5C Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5 -Subparagraph (SX 210.12-13(Column D)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5A -Subparagraph (SX 210.12-13A(Column D)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5A Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 5B -Subparagraph (SX 210.12-13B(Column A)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-5B Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A + Details
Name: | us-gaap_DerivativeLiabilityNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480237/815-40-50-5 + Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -SubTopic 10 -Topic 820 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ardx_ExitFee2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ardx_ExitFee2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |