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Significant Subsequent Events - Additional Information (Detail) - Major Debt Issuance [Member] - Unsecured Convertible Corporate Bonds [Member] - Universal Scientific Industrial (Shanghai) Co., Ltd [member] - CNY (¥) ¥ in Thousands	Mar. 01, 2021	Mar. 01, 2026	Mar. 01, 2025	Mar. 01, 2024	Mar. 01, 2023	Mar. 01, 2022
Disclosure of non-adjusting events after reporting period [line items]
Bonds face amount	¥ 3,450,000
Bonds maturity year	6 years
Annual interest rates of bonds	0.10%	2.00%	1.80%	1.30%	0.60%	0.20%

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The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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