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Employee Benefits - Additional Information (Detail) - CNY (¥) ¥ in Thousands | 9 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019
Postemployment Benefits [Abstract] |  |
Employee benefit expenses | ¥ 8,815 | ¥ 9,987

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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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Period Type: | duration

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- References No definition available. + Details
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