Accounting Policies [Line Items]

No definition available.

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- Definition

Appropriation to statutory reserve.

+ References

No definition available.

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- Definition

Gain loss on fair value changes of crypto assets.

+ References

No definition available.

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- Definition

Government Grant

+ References

No definition available.

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- Definition

Loan Receivable, Term

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No definition available.

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- Definition

Maximum percentage surplus fund appropriation not required.

+ References

No definition available.

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- Definition

Net profit appropriation to statutory surplus fund threshold percentage.

+ References

No definition available.

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- Definition

Number Of Ordinary Shares Represented By American Depositary Shares Issued

+ References

No definition available.

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- Definition

Stock repurchase weighted average price.

+ References

No definition available.

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- Definition

Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

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- Definition

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

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- Definition

Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction.

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- Definition

Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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- Definition

Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit.

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- Definition

Expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services. Costs of public relations and corporate promotions are typically considered to be marketing costs.

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- Definition

Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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- Definition

Amount of cash inflow from recovery of accounts receivable previously written off.

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- Definition

Amount of expense (reversal of expense) for expected credit loss on accounts receivable.

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- Definition

Amount of accumulated undistributed earnings (deficit).

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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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.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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Summary of Significant Accounting Polices - Additional Information (Detail)	1 Months Ended	12 Months Ended						60 Months Ended	72 Months Ended			84 Months Ended
	Sep. 30, 2023 CNY (¥)	Mar. 31, 2026 CNY (¥) shares	Mar. 31, 2026 USD ($) shares	Mar. 31, 2025 CNY (¥) shares	Mar. 31, 2025 USD ($) shares	Mar. 31, 2024 CNY (¥) shares	Mar. 31, 2024 USD ($) $ / shares shares	Mar. 31, 2025 CNY (¥) shares	Mar. 31, 2026 CNY (¥) shares	Mar. 31, 2025 CNY (¥) shares	Mar. 31, 2025 USD ($) shares	Mar. 31, 2026 CNY (¥) shares	Mar. 31, 2026 USD ($) shares	Mar. 31, 2026 USD ($) $ / shares	Mar. 31, 2025 USD ($) $ / shares	May 14, 2024 USD ($)	Apr. 01, 2023 CNY (¥)
Accounting Policies [Line Items]
Exchange (losses)/gains		¥ (1,727,000)	$ (250,000)	¥ (183,000)		¥ 46,000
Other comprehensive income, foreign currency transaction and translation adjustment, net of tax		¥ (2,695,000)	(391,000)	526,000		3,675,000
Convenience translation exchange rate (RMB per US $1.00)		6.898							6.898			6.898		6.898
Held-to-maturity investments		¥ 0		7,254,000				¥ 7,254,000	¥ 0	¥ 7,254,000		¥ 0
Accumulated deficit and non-controlling interests		(8,923,341,000)		(8,922,425,000)				¥ (8,922,425,000)	(8,923,341,000)	(8,922,425,000)		(8,923,341,000)		$ (1,293,613,000)
Expected credit loss provisions/(reversals)		(17,000)	$ (2,000)	7,344,000		2,649,000
Previously written-off receivables		553,000		1,202,000		1,862,000
Marketing expenses		14,408,000		16,362,000		17,620,000
Government grants received		6,706,000		¥ 2,591,000		¥ 3,532,000
Finance Leases		¥ 0							0			0
Stock Repurchased During Period, Shares \| shares		0	0	15,323,400	15,323,400	0	0
Stock repurchase authorized value \| $																$ 8,000,000
Employee benefit expenses		¥ 20,569,000		¥ 19,906,000		¥ 20,134,000
Minimum percentage, appropriation to the statutory surplus fund of the after-tax profits		10.00%	10.00%
Maximum percentage of the registered capital where appropriation is not required		50.00%	50.00%
Impairment of intangible assets	¥ 9,945,000	¥ 0		0		9,945,000
Loss in fair value changes of crypto assets		(3,789,000)
Short term borrowings \| $														$ 0	$ 0
Revenue recognized included in deferred revenue		4,976,000							¥ 4,976,000			4,976,000
Property Plant and Equipment [Member]
Accounting Policies [Line Items]
Impairment charges for property and equipment, net		0		17,953,000		0
General and Administrative Expense [Member]
Accounting Policies [Line Items]
Expected credit loss provisions/(reversals)		570,000		6,142,000		787,000
Accounting Standards Update 2016-13 [Member]
Accounting Policies [Line Items]
Accumulated deficit and non-controlling interests																	¥ 1,707,000
Expected credit loss provisions/(reversals)		¥ (17,000)		7,344,000		¥ 2,649,000
Open Market
Accounting Policies [Line Items]
Stock Repurchased During Period, Value			$ 0	¥ 823,000	$ 117,000		$ 0
Stock Repurchase Weighted Average Price \| $ / shares															$ 0.01
Class A Ordinary Shares
Accounting Policies [Line Items]
Number of ordinary shares represented by each ADS \| shares		300	300
Class A Ordinary Shares \| Open Market
Accounting Policies [Line Items]
Stock Repurchased During Period, Shares \| shares				15,323,400	15,323,400	110,434,025	110,434,025	125,757,425	125,757,425
Stock Repurchased During Period, Value						¥ 41,950,000	$ 6,294,000			¥ 42,773,000	$ 6,411,000	¥ 42,773,000	$ 6,411,000
Stock Repurchase Weighted Average Price \| $ / shares							$ 0.06							$ 0.05	0.05
Class A Ordinary Shares \| From Certain Shareholders
Accounting Policies [Line Items]
Stock Repurchased During Period, Shares \| shares						161,960,075	161,960,075			161,960,075	161,960,075	161,960,075	161,960,075
Stock Repurchased During Period, Value						¥ 95,496,000	$ 13,799,000			¥ 95,496,000	$ 13,799,000	¥ 95,496,000	$ 13,799,000
Stock Repurchase Weighted Average Price \| $ / shares							$ 0.09							$ 0.09	$ 0.09
Statutory Reserves
Accounting Policies [Line Items]
Appropriations to statutory surplus fund and other reserve funds		¥ 2,757,000		¥ 3,374,000		¥ 0
Maximum
Accounting Policies [Line Items]
Loan receivable term		12 months	12 months
Minimum
Accounting Policies [Line Items]
Loan receivable term		1 month	1 month