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Taxation - Schedule of Movement of Valuation Allowance (Detail) - CNY (¥) ¥ in Thousands | 12 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2019
Income Tax Disclosure [Abstract] |  |  |
Balance at beginning of the period | ¥ 752,907 | ¥ 860,698 | ¥ 780,179
Addition | 16,934 | 21,180 | 83,516
Written off for expiration of net operating losses | (225,742) | (125,803) |
Utilization of previously unrecognized tax loss and un-deductible advertising expenses | (3,126) | (3,168) | (2,997)
Balance at end of the period | ¥ 540,973 | ¥ 752,907 | ¥ 860,698

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- Definition Deferred Tax Assets Valuation Allowance, Utilization of previously unrecognized tax loss and un-deductible advertising expenses. + References No definition available. + Details
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- Definition Deferred Tax Assets Valuation Allowance Written Off. + References No definition available. + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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