v3.20.1

Leases (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Lessee Disclosure [Abstract] |
Schedule on Impact of ASC 842 on Consolidated Balance Sheet | The impact of ASC 842 on the December 31, 2019 consolidated balance sheet was as follows:
|  |  | December 31,
|  |  | 2019
|  |  | RMB
Operating leases: |  |  |  |
Right-of-use lease assets |  |  |  | 40,786,291
Lease liabilities-current |  |  |  | 20,556,017
Other non-current liabilities |  |  |  | 12,500,120
Summary of Other Information Related to Leases | Other information related to leases is presented below:
|  | December 31,
|  | 2019
|  | RMB
Supplemental cash flow information: |  |
Cash paid for amounts included in measurement of operating leases liabilities |  | 12,850,734
Right-of-use assets acquired in exchange for operating lease obligations |  | 8,696,875
Right-of-use assets acquired in connection with Huanqiuyimeng Acquisition |  | 32,089,416
Weighted average remaining lease term |  | 1.67
Weighted average discount rate |  | 5.88%
Schedule on Maturities of Lease Liabilities under Non-Cancellable Leases | Maturities of lease liabilities under non-cancellable leases as of December 31, 2019 are as follows:
|  | Operating leases
|  | RMB
2020 |  | 21,869,242
2021 |  | 10,956,342
2022 |  | 2,601,561
2023 |  | 359,048
2024 |  | —
Thereafter |  | —
Total undiscounted lease payments |  | 35,786,193
Less: Imputed interest |  | (2,730,056)
Total lease liabilities |  | 33,056,137
Amounts due within 12 months |  | 20,556,017
Non-current lease liability |  | 12,500,120
Summary of Short-term Lease Commitments | Short-term lease expense, with a lease term of 12 months or less, for the year ended December 31, 2019 was RMB 2,125,616 and short-term lease commitments as of December 31, 2019 are as follows:
|  | Short-term Lease Commitments Amount
|  | RMB
Year ended December 31: |  |
2020 |  | 1,506,677
|  | 1,506,677
Schedule on Future Minimum Annual Lease Payments under (ASC 840) Operating Leases | As previously disclosed in the consolidated financial statements for the year ended December 31, 2018 and under the previous lease standards (ASC 840), future minimum annual lease payments for the years subsequent to December 31, 2018 and in aggregate are as follows:
|  | Minimum
|  | Lease Payments Amount
|  | RMB
Year ended December 31: |  |
2019 |  | 2,959,829
2020 |  | 346,745
2021 |  | —
2022 |  | —
2023 |  | —
|  | 3,306,574

X
- Definition Balance sheet information related to operating leases. + References No definition available. + Details
Name: | aacg_BalanceSheetInformationRelatedToOperatingLeasesTableTextBlock
Namespace Prefix: | aacg_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other information related to leases. + References No definition available. + Details
Name: | aacg_OtherInformationRelatedToLeasesTableTextBlock
Namespace Prefix: | aacg_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The tabular disclosure of summary of short-term lease commitments. + References No definition available. + Details
Name: | aacg_SummaryOfShortTermLeaseCommitmentsTableTextBlock
Namespace Prefix: | aacg_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717 + Details
Name: | us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration