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Short-Term and Long-Term Debts - Summary of Short-Term Debts (Detail)	12 Months Ended
	Dec. 31, 2021 CNY (¥)	Dec. 31, 2020 CNY (¥)	Dec. 31, 2021 USD ($)
Short-term Debt [Line Items]
Short-term borrowings	¥ 579,776,131	¥ 355,816,940	$ 90,979,527
Minimum [Member]
Short-term Debt [Line Items]
Short-term borrowings, Fixed annual rate	3.75%	3.40%	3.75%
Short-term borrowings, Term	1 month	1 month
Maximum [Member]
Short-term Debt [Line Items]
Short-term borrowings, Fixed annual rate	6.50%	6.80%	6.50%
Short-term borrowings, Term	12 months	12 months

X

- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

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-Publisher FASB
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- Definition

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

+ References

No definition available.

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- Definition

The portion of the carrying amount of short-term borrowings outstanding as of the balance sheet date which accrues interest at a set, unchanging rate.

+ References

No definition available.

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- Definition

Description of the short-term debt arrangement, and disclosures pertaining to the underlying arrangements, including repayment terms, interest rates, restrictions on assets and activities, debt covenants, and other matters important to users of the financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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