Income tax expense (benefit) if the tax holidays granted were not available.

No definition available.

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- Definition

Represents the preferential tax rate applicable to the entity under the preferential tax treatment.

+ References

No definition available.

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- Definition

Income taxes.

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No definition available.

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- Definition

Operating loss carryforwards expiration end date.

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No definition available.

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Operating loss carryforwards expiration start date.

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No definition available.

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- Definition

Preferential tax exemption approved end period.

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No definition available.

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- Definition

Preferential tax exemption approved start period.

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No definition available.

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- Definition

Preferential tax rate.

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No definition available.

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- Definition

The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

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- Definition

Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

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Income Taxes - Additional Information (Details) ¥ / shares in Units, $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021 CNY (¥) ¥ / shares	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2020 CNY (¥) ¥ / shares	Dec. 31, 2019 CNY (¥) ¥ / shares
Income Taxes [Line Items]
Statutory income tax rate	25.00%	25.00%	25.00%	25.00%
Income tax expenses	¥ (19,618,000)	$ (3,078)	¥ (236,000)	¥ 2,440,000
Income tax expenses if the tax holidays granted to Wuhan Shangde were not available	¥ 11,560
Basic and diluted \| (per share)	¥ 32.56	$ 5.11	¥ (63.74)	¥ (57.81)
Uncertain tax positions	¥ 0		¥ 0	¥ 0
Income tax rate outside the PRC	25.00%	25.00%
Wuhan Shangde Online Education Technology Co., Ltd. ("Wuhan Shangde")
Income Taxes [Line Items]
Basic and diluted \| ¥ / shares	¥ 31.36
Hong Kong
Income Taxes [Line Items]
Income tax expenses	¥ 0		¥ 0	¥ 0
Hong Kong \| For the First 2 Million Profits
Income Taxes [Line Items]
Statutory income tax rate	8.25%	8.25%
Hong Kong \| For the Remaining Profits
Income Taxes [Line Items]
Statutory income tax rate	16.50%	16.50%
China
Income Taxes [Line Items]
Statutory income tax rate	25.00%	25.00%
China \| subsidiaries and the Variable Interest Entities
Income Taxes [Line Items]
Statutory income tax rate	25.00%	25.00%
Operating loss carryforwards	¥ 3,002,122
Expiration start date	Dec. 31, 2023	Dec. 31, 2023
Expiration end date	Dec. 31, 2031	Dec. 31, 2031
China \| 2016 \| Beijing Shangde Online Education Technology Company Limited
Income Taxes [Line Items]
Statutory income tax rate	25.00%	25.00%
Preferential tax rate description	Beijing Sunlands was qualified as “high and new technology enterprise strongly supported by the State” (“HNTE”) and was accordingly entitled to a preferential tax rate of 15% from calendar years 2016 through 2020. For 2021, Beijing Sunlands was subject to an EIT rate of 25%.	Beijing Sunlands was qualified as “high and new technology enterprise strongly supported by the State” (“HNTE”) and was accordingly entitled to a preferential tax rate of 15% from calendar years 2016 through 2020. For 2021, Beijing Sunlands was subject to an EIT rate of 25%.
Preferential tax rate	15.00%	15.00%
Preferential tax exemption approved start year	2016	2016
Preferential tax exemption approved end year	2020	2020
China \| 2021 \| Wuhan Shangde Online Education Technology Co., Ltd. ("Wuhan Shangde")
Income Taxes [Line Items]
Statutory income tax rate	15.00%	15.00%
Preferential tax rate description	Wuhan Shangde was qualified as HNTE and is accordingly entitled to a preferential tax rate of 15% from calendar years 2021 through 2023 and expected to be subject to an EIT rate of 15% as long as it maintains its status as a HNTE.	Wuhan Shangde was qualified as HNTE and is accordingly entitled to a preferential tax rate of 15% from calendar years 2021 through 2023 and expected to be subject to an EIT rate of 15% as long as it maintains its status as a HNTE.
Preferential tax rate	15.00%	15.00%
Preferential tax exemption approved start year	2021	2021
Preferential tax exemption approved end year	2023	2023