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Taxation - Summary of Movement of Valuation Allowance (Detail) - CNY (¥) ¥ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Deferred Taxes, Business Combination, Valuation Allowance [Abstract] |  |  |  |
Beginning Balance |  | ¥ (74,607) | ¥ (80,320) | ¥ (50,499)
Movement | [1] | (38,231) | 5,713 | (29,821)
Ending Balance |  | ¥ (112,838) | ¥ (74,607) | ¥ (80,320)
[1] | The movement in valuation allowances were due to the changes of deferred tax assets recognized for net operating tax loss carry forwards, advertising expenses in excess of deduction limit and deferred revenue.

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- Definition Deferred tax assets valuation allowance current year movement. + References No definition available. + Details
Name: | lizi_DeferredTaxAssetsValuationAllowanceCurrentYearMovement
Namespace Prefix: | lizi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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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=121826272&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_DeferredTaxesBusinessCombinationValuationAllowanceAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration