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OPERATING LEASE - Additional Information (Detail) - CNY (¥) ¥ in Thousands | 6 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Lessee, Lease, Description [Line Items] |  |
Lessee, Operating Lease, Existence of Option to Extend [true false] | true |
Lease option to extend | The Group leases apartments from landlords usually for a period of five to six years which may be extended for an additional three or two years at the discretion of the landlords. |
Fixed rent, lock in period | 3 years |
Annual, non-compounding increase for the rest of the lease period | 5.00% |
Operating lease expenses | ¥ 172,046 | ¥ 300,668
Minimum |  |
Lessee, Lease, Description [Line Items] |  |
Lessee, Operating Lease, Term of Contract | 5 years |
Rent free period with landlords | 1 month |
Maximum |  |
Lessee, Lease, Description [Line Items] |  |
Lessee, Operating Lease, Term of Contract | 6 years |
Rent free period with landlords | 2 months |

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- Definition Percentage Of Increase Decrease In Lease Rent + References No definition available. + Details
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- Definition Description of terms and conditions of option to extend lessee's operating lease. Includes, but is not limited to, information about option recognized as part of right-of-use asset and lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 53 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479589/842-20-55-53 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
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