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INTANGIBLE ASSETS, NET - Amortization expenses (Details) - Dec. 31, 2019
¥ in Thousands, $ in Thousands
USD ($)
CNY (¥)
INTANGIBLE ASSETS, NET    
2020 $ 8,491 ¥ 59,115
2021 7,958 55,400
2022 7,183 50,005
2023 4,923 34,274
2024 1,985 13,820
Annual estimated amortization expenses for intangible assets $ 30,540 ¥ 212,614