Significant Subsequent Events - Additional Information (Detail) ¥ in Billions	Feb. 11, 2020 CNY (¥)
USCXM [member] \| Events after reporting period [member]
Disclosure of subsidiaries [line items]
Capital contribution	¥ 3.5

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

No definition available.

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