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ORGANIZATION AND PRINCIPAL ACTIVITIES - Summary of principal subsidiaries and VIEs (Detail) | 12 Months Ended
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Dec. 31, 2020
Subsidiaries [Member] | Jiayin Holdings Limited |
Date of incorporation/establishment or acquisition | Jan. 31, 2018
Place of incorporation/establishment | BVI
Percentage of direct or indirect ownership | 100.00%
Principal activities | Investment Holding
Subsidiaries [Member] | Geerong(HK) Limited (formerly known as "Jiayin (HK) Limited") |
Date of incorporation/establishment or acquisition | Jan. 31, 2018
Place of incorporation/establishment | Hong Kong
Percentage of direct or indirect ownership | 100.00%
Principal activities | Investment Holding
Subsidiaries [Member] | Jiayin Southeast Asia Holdings Limited |
Date of incorporation/establishment or acquisition | Feb. 28, 2018
Place of incorporation/establishment | BVI
Percentage of direct or indirect ownership | 100.00%
Principal activities | Investment Holding
Subsidiaries [Member] | Shanghai Kunjia Technology Co., Ltd. |
Date of incorporation/establishment or acquisition | Jun. 30, 2018
Place of incorporation/establishment | Shanghai
Percentage of direct or indirect ownership | 100.00%
Principal activities | Investment Holding
Subsidiaries [Member] | Geerong Yunke Information Technology Co., Ltd |
Date of incorporation/establishment or acquisition | Jul. 31, 2019
Place of incorporation/establishment | Shanghai
Percentage of direct or indirect ownership | 100.00%
Principal activities | Technology development and consumer finance services
Subsidiaries [Member] | Geerong Yun (Shanghai) Enterprise Development Co., Ltd. |
Date of incorporation/establishment or acquisition | Sep. 30, 2019
Place of incorporation/establishment | Shanghai
Percentage of direct or indirect ownership | 100.00%
Principal activities | Technology development and consumer finance services
Subsidiaries [Member] | Shanghai Chuangzhen Software Co., Ltd. |
Date of incorporation/establishment or acquisition | Apr. 30, 2020
Place of incorporation/establishment | Shanghai
Percentage of direct or indirect ownership | 100.00%
Principal activities | Technology service
Subsidiaries [Member] | Aguila Information, S.A.P.I. de C.V. |
Date of incorporation/establishment or acquisition | Jan. 31, 2020
Place of incorporation/establishment | Mexico
Percentage of direct or indirect ownership | 51.00%
Principal activities | Lending business
Subsidiaries [Member] | PT Jayindo Fintek Pratama |
Date of incorporation/establishment or acquisition | Apr. 30, 2020
Place of incorporation/establishment | Indonesia
Percentage of direct or indirect ownership | 85.00%
Principal activities | Lending business
Variable Interest Entity, Primary Beneficiary Shanghai Jiayin Finance Technology Co Ltd |
Date of incorporation/establishment or acquisition | Jun. 30, 2015
Place of incorporation/establishment | Shanghai
Percentage of direct or indirect ownership | 100.00%
Principal activities | Technology service
Variable Interest Entity, Primary Beneficiary Shanghai Jiajie Internet Finance Information Services Co Ltd |
Date of incorporation/establishment or acquisition | Sep. 30, 2015
Place of incorporation/establishment | Shanghai
Percentage of direct or indirect ownership | 100.00%
Principal activities | Technology development and consumer finance services
Variable Interest Entity, Primary Beneficiary Shanghai Niwodai Internet Finance Information Services Co Ltd |
Date of incorporation/establishment or acquisition | Jul. 31, 2019
Place of incorporation/establishment | Shanghai
Percentage of direct or indirect ownership | 100.00%
Principal activities | Technology development and consumer finance services

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