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Summary of Significant Accounting Policies - Disclosure of Effect of Changes in Foreign Exchange Rates (Details) - Renminbi - CNY (¥)
12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Disclosure of reclassifications or changes in presentation [line items]    
Closing rate 6.355 6.552
Average rate 6.417 6.777