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Cash and Bank Balances - Additional Information (Detail)
¥ in Millions, $ in Millions
Dec. 31, 2023
CNY (¥)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
CNY (¥)
Disclosure of detailed cash and cash equivalents short term bank deposits current restricted cash and long term bank deposits [line items]      
Restricted cash used as collateral by the banks for the issuance of bills to suppliers ¥ 28.0 $ 3.9 ¥ 27.7
Undrawn borrowing facilities 534.5 75.2 518.0
Fixed deposits held with related party ¥ 51.2 $ 7.2 ¥ 36.6
Bottom of range [member]      
Disclosure of detailed cash and cash equivalents short term bank deposits current restricted cash and long term bank deposits [line items]      
Interest rate on bank deposits 2.50% 2.50% 1.30%
Top of range [member]      
Disclosure of detailed cash and cash equivalents short term bank deposits current restricted cash and long term bank deposits [line items]      
Interest rate on bank deposits 5.70% 5.70% 5.20%