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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of movement of contract assets (Detail) - CNY (¥) ¥ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Opening balance | ¥ 242,881 | ¥ 881,296
Addition in the current year | 67,278 | 1,236,968
Collection in the current year | (170,261) | (1,618,631)
Write off in the current year | (87,362) | (256,752)
Transfer out due to disposal of Shanghai Caiyin | (190,491) |
Reclass to refund liability | (137,955) |
Ending balance | 0 | 242,881
Current loan products |  |
Opening balance | 54,615 | 335,550
Addition in the current year | 41,747 | 898,142
Collection in the current year | (41,134) | (1,001,265)
Write off in the current year | (46,306) | (177,812)
Transfer out due to disposal of Shanghai Caiyin | (140,988) |
Reclass to refund liability | (132,066) |
Ending balance | 0 | 54,615
Other online standard loan products |  |
Opening balance | 14,102 | 162,942
Addition in the current year | 3,827 | 26,987
Collection in the current year | (10,398) | (107,384)
Write off in the current year | (5,382) | (68,443)
Transfer out due to disposal of Shanghai Caiyin | (6,492) |
Reclass to refund liability | (4,343) |
Ending balance | 0 | 14,102
Offline and non-standard loan products |  |
Opening balance | 163,026 | 376,304
Addition in the current year | 21,704 | 41,548
Collection in the current year | (107,591) | (244,329)
Write off in the current year | (35,674) | (10,497)
Transfer out due to disposal of Shanghai Caiyin | (43,011) |
Reclass to refund liability | (1,546) |
Ending balance | 0 | 163,026
Other services |  |
Opening balance | 11,138 | 6,500
Addition in the current year |  | 270,291
Collection in the current year | (11,138) | (265,653)
Transfer out due to disposal of Shanghai Caiyin | 0 |
Ending balance | ¥ 0 | ¥ 11,138

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