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SHORT-TERM INVESTMENTS - Additional Information (Details) - CNY (¥) ¥ in Thousands | 6 Months Ended | 9 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Net investment income | ¥ 17,075 | ¥ 8,629 | ¥ 31,112 | ¥ 15,791
Wealth management products |  |  |  |
Net investment income | ¥ 17,075 | ¥ 8,629 | ¥ 31,112 | ¥ 15,791

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