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LEASE (Summary of non-cancelable direct financing leases) (Details) - Dec. 31, 2019
¥ in Thousands, $ in Thousands
USD ($)
CNY (¥)
Lease    
2020 $ 5,609 ¥ 39,050
2021 2,462 17,138
2022 1,070 7,446
2023 431 3,003
2024 $ 270 ¥ 1,883