XML 84 R57.htm IDEA: XBRL DOCUMENT
v3.21.1

SHARE-BASED COMPENSATION - Additional Information (Detail) - CNY (¥) ¥ / shares in Units, ¥ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2020 | Nov. 30, 2019 | Oct. 31, 2018 | Sep. 30, 2016 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Mar. 31, 2018 | Mar. 31, 2017
Options granted in period |  |  |  |  |  |  | 1,583,000 |  |  |  |  |  |
Options cancelled |  |  |  | 2,377,000 |  |  |  |  |  |  |  |  |
Unrecognized share-based compensation expense recognized |  |  |  |  |  |  |  |  | ¥ 39,390 |  |  |  |
Weighted average grant date fair value of options granted |  |  |  |  |  |  | ¥ 14.78 |  | ¥ 50.36 |  | ¥ 84.88 |  |
Total unrecognized compensation cost related to non-vested stock options |  |  |  |  |  |  | ¥ 27,168 |  |  |  |  |  |
Total unrecognized compensation cost related to non-vested stock options, weighted-average period |  |  |  |  |  |  | 2 years 7 months 17 days |  |  |  |  |  |
Shanghai Jiayin Finance Technology Co., Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of total outstanding shares |  |  |  | 27.00% |  |  |  |  |  |  |  |  |
Shanghai Jiayin Finance Technology Co., Ltd. | Share-based Compensation Award, Tranche One |  |  |  |  |  |  |  |  |  |  |  |  |
Options granted in period |  |  |  | 13,321,500 |  |  |  |  |  |  |  |  |
Options exercise price |  |  |  | ¥ 3.5 |  |  |  |  |  |  |  |  |
Shanghai Jiayin Finance Technology Co., Ltd. | Share-based Compensation Award, Tranche One | Employee Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Options life |  |  |  | 4 years 6 months |  |  |  |  |  |  |  |  |
Options vesting percentage |  |  |  |  |  |  |  | 30.00% |  | 30.00% |  | 25.00% | 15.00%
Shanghai Jiayin Finance Technology Co., Ltd. | Share-based Compensation Award, Tranche Two |  |  |  |  |  |  |  |  |  |  |  |  |
Options granted in period |  |  | 2,851,600 |  |  |  |  |  |  |  |  |  |
Options exercise price |  |  | ¥ 3.5 |  |  |  |  |  |  |  |  |  |
Shanghai Jiayin Finance Technology Co., Ltd. | Share-based Compensation Award, Tranche Two | Employee Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Options life |  |  | 4 years 6 months |  |  |  |  |  |  |  |  |  |
Options vesting percentage |  |  |  |  | 30.00% | 30.00% |  | 25.00% |  | 15.00% |  |  |
Two Thousand Nineteen Incentive Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Options granted in period | 1,583,000 | 288,000 |  |  |  |  |  |  |  |  |  |  |
Employee incentive plan | Shanghai Jiayin Finance Technology Co., Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |
Shares that will be used under the Plan |  |  |  | 13,500,000 |  |  |  |  |  |  |  |  |
Two Thousand Eighteen incentive paln |  |  |  |  |  |  |  |  |  |  |  |  |
Options cancelled |  |  | 1,169,000 |  |  |  |  |  |  |  |  |  |

X
- Definition Share-based compensation arrangement by share-based payment award options non-vested options cancelled number of shares. + References No definition available. + Details
Name: | jfin_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonVestedOptionsCancelledNumberOfShares
Namespace Prefix: | jfin_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cost to be recognized for option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of vesting of award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average grant-date fair value of non-vested options forfeited. + References No definition available. + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=jfin_ShanghaiJiayinFinanceTechnologyCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=jfin_TwoThousandNineteenIncentivePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=jfin_EmployeeIncentivePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=jfin_TwoThousandEighteenIncentivePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |