v3.20.1

Leases - Additional Information (Details) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 CNY (¥) | Dec. 31, 2019 CNY (¥) Lease | Dec. 31, 2018 CNY (¥)
Lessee Lease Description [Line Items] |  |  |
Number of operating leases | Lease |  | 61 |
Weighted average remaining lease term |  | 1 year 8 months 1 day |
Weighted average discount rate |  | 5.88% |
Operating lease, rental expense |  | ¥ 13,903,991 |
Variable cost |  | 0 |
Sublease income |  | 0 |
Short term lease expense |  | ¥ 2,125,616 |
Rental expense for operating leases | ¥ 4,772,679 |  | ¥ 2,717,234
Minimum |  |  |
Lessee Lease Description [Line Items] |  |  |
Operating lease remaining term of contract |  | 2 months |
Maximum |  |  |
Lessee Lease Description [Line Items] |  |  |
Operating lease remaining term of contract |  | 39 months |

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- Definition Weighted average remaining lease term for 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/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + Details
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- Definition Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971 + Details
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