XML 116 R88.htm IDEA: XBRL DOCUMENT
v3.22.1

Employee Benefits - Summary of Assumptions Used for Employees for the Measurement of Retirement Indemnity to Employees (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of defined benefit plans [line items] |  |  |
Population | Permanent staff |  |
Terms of retirement | Initiated by the employee |  |
Life expectancy | On the basis of the INSEE table |  |
Probability of continued presence in the company at retirement age | On the basis of the DARES table |  |
Discount rate (as a percent) | 0.87% | 0.50% | 0.75%
Within 1 Year |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Salary growth rate (as a percent) | 3.00% | 3.00% | 5.80%
Beyond |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Salary growth rate (as a percent) | 3.00% | 3.00% | 3.00%

X
- Definition Life expectancy description. + References No definition available. + Details
Name: | gnft_LifeExpectancyDescription
Namespace Prefix: | gnft_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Population description. + References No definition available. + Details
Name: | gnft_PopulationDescription
Namespace Prefix: | gnft_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Probability of continued presence description. + References No definition available. + Details
Name: | gnft_ProbabilityOfContinuedPresenceDescription
Namespace Prefix: | gnft_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Terms of retirement description. + References No definition available. + Details
Name: | gnft_TermsOfRetirementDescription
Namespace Prefix: | gnft_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The discount rate used as the significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_144&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ActuarialAssumptionOfDiscountRates
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The expected rate of salary increases used as a significant actuarial assumption to determine the present value of a defined benefit obligation. [Refer: Defined benefit plans [member]; Defined benefit obligation, at present value; Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 144 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_144&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfDefinedBenefitPlansLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_NotLaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |