Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Commitments and Contingencies - Additional information (Details)

v3.21.1

Commitments and Contingencies - Additional information (Details) ¥ in Millions		1 Months Ended
	Apr. 27, 2017 CNY (¥)	Mar. 31, 2020 CNY (¥)	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)
ATA Online Sale Transaction
Long Term Purchase Commitment [Line Items]
Total consideration \| $			$ 200,000,000
Accrual of loss contingency \| $				$ 0
ATA Online Sale Transaction \| Alpha Advantage Global Limited and Dynamic Fame Limited
Long Term Purchase Commitment [Line Items]
Attorney's fees and other litigation costs \| $			$ 15,000,000
ATA Online Sale Transaction \| Mr. Xiaofeng Ma \| Alpha Advantage Global Limited
Long Term Purchase Commitment [Line Items]
Loss contingency, damages sought, value		¥ 95.0
Attorney's fees and other litigation costs		1.5
ATA Online Sale Transaction \| Mr. Xiaofeng Ma \| Dynamic Fame Limited
Long Term Purchase Commitment [Line Items]
Loss contingency, damages sought, value		5.0
Attorney's fees and other litigation costs		¥ 0.5
Agreement with Tsinghua University
Long Term Purchase Commitment [Line Items]
Period covered by the purchase agreement	5 years
Maximum amount of funding support under certain circumstances	¥ 50.0
Maximum amount paid of funding support under certain circumstances	40.0
Amount of funding support to be paid current	¥ 10.0

- Definition

Amount of funding support to be paid current.

+ References

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- Definition

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+ References

No definition available.

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- Definition

Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

+ References

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- Definition

The minimum amount the entity agreed to spend under the long-term purchase commitment.

+ References

No definition available.

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- Definition

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+ References

No definition available.

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- Definition

Period covered by the long-term purchase commitment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of loss contingency liability.

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- Definition

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Aggregate cash proceeds received from a combination of transactions in which noncurrent assets are sold, which may include the sale of a business, an investment in an affiliate (including an equity method investee), property, plant and equipment and intangible assets. Excludes sales of trading, available-for-sale, and held-to-maturity securities.

+ References

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