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LEASE (Schedule of Prepaid Land Lease Payments) (Details)
¥ in Thousands, $ in Thousands
Dec. 31, 2021
CNY (¥)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
CNY (¥)
LEASE      
Land use rights ¥ 463,992 $ 72,810 ¥ 463,992
Less: accumulated amortization (47,096) (7,390) (37,475)
Net carrying value ¥ 416,896 $ 65,420 ¥ 426,517