3.20.2 html 196 348 1 true 61 0 false 7 false false R1.htm 00090 - Document - Document and Entity Information Sheet http://www.caasauto.com/role/DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 00100 - Statement - Condensed Unaudited Consolidated Statements of Operations and Comprehensive Income Sheet http://www.caasauto.com/role/StatementCondensedUnauditedConsolidatedStatementsOfOperationsAndComprehensiveIncome Condensed Unaudited Consolidated Statements of Operations and Comprehensive Income Statements 2 false false R3.htm 00105 - Statement - Condensed Unaudited Consolidated Statements of Operations and Comprehensive Income (Parenthetical) Sheet http://www.caasauto.com/role/StatementCondensedUnauditedConsolidatedStatementsOfOperationsAndComprehensiveIncomeParenthetical Condensed Unaudited Consolidated Statements of Operations and Comprehensive Income (Parenthetical) Statements 3 false false R4.htm 00200 - Statement - Condensed Unaudited Consolidated Balance Sheets Sheet http://www.caasauto.com/role/StatementCondensedUnauditedConsolidatedBalanceSheets Condensed Unaudited Consolidated Balance Sheets Statements 4 false false R5.htm 00205 - Statement - Condensed Unaudited Consolidated Balance Sheets (Parenthetical) Sheet http://www.caasauto.com/role/StatementCondensedUnauditedConsolidatedBalanceSheetsParenthetical Condensed Unaudited Consolidated Balance Sheets (Parenthetical) Statements 5 false false R6.htm 00300 - Statement - Condensed Unaudited Consolidated Statements of Cash Flows Sheet http://www.caasauto.com/role/StatementCondensedUnauditedConsolidatedStatementsOfCashFlows Condensed Unaudited Consolidated Statements of Cash Flows Statements 6 false false R7.htm 00305 - Statement - Condensed Unaudited Consolidated Statements of Cash Flows (Parenthetical) Sheet http://www.caasauto.com/role/StatementCondensedUnauditedConsolidatedStatementsOfCashFlowsParenthetical Condensed Unaudited Consolidated Statements of Cash Flows (Parenthetical) Statements 7 false false R8.htm 10101 - Disclosure - Organization and business Sheet http://www.caasauto.com/role/DisclosureOrganizationAndBusiness Organization and business Notes 8 false false R9.htm 10201 - Disclosure - Basis of presentation and significant accounting policies Sheet http://www.caasauto.com/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicies Basis of presentation and significant accounting policies Notes 9 false false R10.htm 10301 - Disclosure - Accounts and notes receivable, net Notes http://www.caasauto.com/role/DisclosureAccountsAndNotesReceivableNet Accounts and notes receivable, net Notes 10 false false R11.htm 10401 - Disclosure - Inventories Sheet http://www.caasauto.com/role/DisclosureInventories Inventories Notes 11 false false R12.htm 10501 - Disclosure - Long-term investments Sheet http://www.caasauto.com/role/DisclosureLongTermInvestments Long-term investments Notes 12 false false R13.htm 10601 - Disclosure - Property, plant and equipment, net Sheet http://www.caasauto.com/role/DisclosurePropertyPlantAndEquipmentNet Property, plant and equipment, net Notes 13 false false R14.htm 10701 - Disclosure - Loans Sheet http://www.caasauto.com/role/DisclosureLoans Loans Notes 14 false false R15.htm 10801 - Disclosure - Accounts and notes payable Notes http://www.caasauto.com/role/DisclosureAccountsAndNotesPayable Accounts and notes payable Notes 15 false false R16.htm 10901 - Disclosure - Accrued expenses and other payables Sheet http://www.caasauto.com/role/DisclosureAccruedExpensesAndOtherPayables Accrued expenses and other payables Notes 16 false false R17.htm 11001 - Disclosure - Other long-term payable Sheet http://www.caasauto.com/role/DisclosureOtherLongTermPayable Other long-term payable Notes 17 false false R18.htm 11101 - Disclosure - Redeemable non-controlling interests Sheet http://www.caasauto.com/role/DisclosureRedeemableNonControllingInterests Redeemable non-controlling interests Notes 18 false false R19.htm 11201 - Disclosure - Additional paid-In capital Sheet http://www.caasauto.com/role/DisclosureAdditionalPaidInCapital Additional paid-In capital Notes 19 false false R20.htm 11301 - Disclosure - Retained earnings Sheet http://www.caasauto.com/role/DisclosureRetainedEarnings Retained earnings Notes 20 false false R21.htm 11401 - Disclosure - Accumulated other comprehensive income Sheet http://www.caasauto.com/role/DisclosureAccumulatedOtherComprehensiveIncome Accumulated other comprehensive income Notes 21 false false R22.htm 11501 - Disclosure - Treasury stock Sheet http://www.caasauto.com/role/DisclosureTreasuryStock Treasury stock Notes 22 false false R23.htm 11601 - Disclosure - Non-controlling interests Sheet http://www.caasauto.com/role/DisclosureNonControllingInterests Non-controlling interests Notes 23 false false R24.htm 11701 - Disclosure - Net product sales Sheet http://www.caasauto.com/role/DisclosureNetProductSales Net product sales Notes 24 false false R25.htm 11801 - Disclosure - Financial (expense)/income, net Sheet http://www.caasauto.com/role/DisclosureFinancialExpenseIncomeNet Financial (expense)/income, net Notes 25 false false R26.htm 11901 - Disclosure - Income tax Sheet http://www.caasauto.com/role/DisclosureIncomeTax Income tax Notes 26 false false R27.htm 12001 - Disclosure - Income per share Sheet http://www.caasauto.com/role/DisclosureIncomePerShare Income per share Notes 27 false false R28.htm 12101 - Disclosure - Significant concentrations Sheet http://www.caasauto.com/role/DisclosureSignificantConcentrations Significant concentrations Notes 28 false false R29.htm 12201 - Disclosure - Related party transactions and balances Sheet http://www.caasauto.com/role/DisclosureRelatedPartyTransactionsAndBalances Related party transactions and balances Notes 29 false false R30.htm 12301 - Disclosure - Commitments and contingencies Sheet http://www.caasauto.com/role/DisclosureCommitmentsAndContingencies Commitments and contingencies Notes 30 false false R31.htm 12401 - Disclosure - Off-balance sheet arrangements Sheet http://www.caasauto.com/role/DisclosureOffBalanceSheetArrangements Off-balance sheet arrangements Notes 31 false false R32.htm 12501 - Disclosure - Segment reporting Sheet http://www.caasauto.com/role/DisclosureSegmentReporting Segment reporting Notes 32 false false R33.htm 20202 - Disclosure - Basis of presentation and significant accounting policies (Policies) Sheet http://www.caasauto.com/role/DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies Basis of presentation and significant accounting policies (Policies) Policies 33 false false R34.htm 30103 - Disclosure - Organization and business (Tables) Sheet http://www.caasauto.com/role/DisclosureOrganizationAndBusinessTables Organization and business (Tables) Tables http://www.caasauto.com/role/DisclosureOrganizationAndBusiness 34 false false R35.htm 30303 - Disclosure - Accounts and notes receivable, net (Tables) Notes http://www.caasauto.com/role/DisclosureAccountsAndNotesReceivableNetTables Accounts and notes receivable, net (Tables) Tables http://www.caasauto.com/role/DisclosureAccountsAndNotesReceivableNet 35 false false R36.htm 30403 - Disclosure - Inventories (Tables) Sheet http://www.caasauto.com/role/DisclosureInventoriesTables Inventories (Tables) Tables http://www.caasauto.com/role/DisclosureInventories 36 false false R37.htm 30503 - Disclosure - Long-term investments (Tables) Sheet http://www.caasauto.com/role/DisclosureLongTermInvestmentsTables Long-term investments (Tables) Tables http://www.caasauto.com/role/DisclosureLongTermInvestments 37 false false R38.htm 30603 - Disclosure - Property, plant and equipment, net (Tables) Sheet http://www.caasauto.com/role/DisclosurePropertyPlantAndEquipmentNetTables Property, plant and equipment, net (Tables) Tables http://www.caasauto.com/role/DisclosurePropertyPlantAndEquipmentNet 38 false false R39.htm 30703 - Disclosure - Loans (Tables) Sheet http://www.caasauto.com/role/DisclosureLoansTables Loans (Tables) Tables http://www.caasauto.com/role/DisclosureLoans 39 false false R40.htm 30803 - Disclosure - Accounts and notes payable (Tables) Notes http://www.caasauto.com/role/DisclosureAccountsAndNotesPayableTables Accounts and notes payable (Tables) Tables http://www.caasauto.com/role/DisclosureAccountsAndNotesPayable 40 false false R41.htm 30903 - Disclosure - Accrued expenses and other payables (Tables) Sheet http://www.caasauto.com/role/DisclosureAccruedExpensesAndOtherPayablesTables Accrued expenses and other payables (Tables) Tables http://www.caasauto.com/role/DisclosureAccruedExpensesAndOtherPayables 41 false false R42.htm 31203 - Disclosure - Additional paid-in capital (Tables) Sheet http://www.caasauto.com/role/DisclosureAdditionalPaidInCapitalTables Additional paid-in capital (Tables) Tables 42 false false R43.htm 31303 - Disclosure - Retained earnings (Tables) Sheet http://www.caasauto.com/role/DisclosureRetainedEarningsTables Retained earnings (Tables) Tables http://www.caasauto.com/role/DisclosureRetainedEarnings 43 false false R44.htm 31403 - Disclosure - Accumulated other comprehensive income (Tables) Sheet http://www.caasauto.com/role/DisclosureAccumulatedOtherComprehensiveIncomeTables Accumulated other comprehensive income (Tables) Tables http://www.caasauto.com/role/DisclosureAccumulatedOtherComprehensiveIncome 44 false false R45.htm 31603 - Disclosure - Non-controlling interests (Tables) Sheet http://www.caasauto.com/role/DisclosureNonControllingInterestsTables Non-controlling interests (Tables) Tables http://www.caasauto.com/role/DisclosureNonControllingInterests 45 false false R46.htm 31803 - Disclosure - Financial (expense)/income, net (Tables) Sheet http://www.caasauto.com/role/DisclosureFinancialExpenseIncomeNetTables Financial (expense)/income, net (Tables) Tables http://www.caasauto.com/role/DisclosureFinancialExpenseIncomeNet 46 false false R47.htm 32003 - Disclosure - Income per share (Tables) Sheet http://www.caasauto.com/role/DisclosureIncomePerShareTables Income per share (Tables) Tables http://www.caasauto.com/role/DisclosureIncomePerShare 47 false false R48.htm 32203 - Disclosure - Related party transactions and balances (Tables) Sheet http://www.caasauto.com/role/DisclosureRelatedPartyTransactionsAndBalancesTables Related party transactions and balances (Tables) Tables http://www.caasauto.com/role/DisclosureRelatedPartyTransactionsAndBalances 48 false false R49.htm 32303 - Disclosure - Commitments and contingencies (Tables) Sheet http://www.caasauto.com/role/DisclosureCommitmentsAndContingenciesTables Commitments and contingencies (Tables) Tables http://www.caasauto.com/role/DisclosureCommitmentsAndContingencies 49 false false R50.htm 32503 - Disclosure - Segment reporting (Tables) Sheet http://www.caasauto.com/role/DisclosureSegmentReportingTables Segment reporting (Tables) Tables http://www.caasauto.com/role/DisclosureSegmentReporting 50 false false R51.htm 40101 - Disclosure - Organization and business (Details) Sheet http://www.caasauto.com/role/DisclosureOrganizationAndBusinessDetails Organization and business (Details) Details http://www.caasauto.com/role/DisclosureOrganizationAndBusinessTables 51 false false R52.htm 40102 - Disclosure - Organization and business - Additional Information (Details) Sheet http://www.caasauto.com/role/DisclosureOrganizationAndBusinessAdditionalInformationDetails Organization and business - Additional Information (Details) Details 52 false false R53.htm 40201 - Disclosure - Basis of presentation and significant accounting policies - (Details) Sheet http://www.caasauto.com/role/DisclosureBasisOfPresentationAndSignificantAccountingPoliciesDetails Basis of presentation and significant accounting policies - (Details) Details http://www.caasauto.com/role/DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies 53 false false R54.htm 40301 - Disclosure - Accounts and notes receivable, net - Advance payments (Details) Notes http://www.caasauto.com/role/DisclosureAccountsAndNotesReceivableNetAdvancePaymentsDetails Accounts and notes receivable, net - Advance payments (Details) Details 54 false false R55.htm 40302 - Disclosure - Accounts and notes receivable, net - Additional Information (Details) Notes http://www.caasauto.com/role/DisclosureAccountsAndNotesReceivableNetAdditionalInformationDetails Accounts and notes receivable, net - Additional Information (Details) Details 55 false false R56.htm 40401 - Disclosure - Inventories (Details) Sheet http://www.caasauto.com/role/DisclosureInventoriesDetails Inventories (Details) Details http://www.caasauto.com/role/DisclosureInventoriesTables 56 false false R57.htm 40402 - Disclosure - Inventories - Additional Information (Details) Sheet http://www.caasauto.com/role/DisclosureInventoriesAdditionalInformationDetails Inventories - Additional Information (Details) Details 57 false false R58.htm 40501 - Disclosure - Long-term investments (Details) Sheet http://www.caasauto.com/role/DisclosureLongTermInvestmentsDetails Long-term investments (Details) Details http://www.caasauto.com/role/DisclosureLongTermInvestmentsTables 58 false false R59.htm 40601 - Disclosure - Property, plant and equipment, net (Details) Sheet http://www.caasauto.com/role/DisclosurePropertyPlantAndEquipmentNetDetails Property, plant and equipment, net (Details) Details http://www.caasauto.com/role/DisclosurePropertyPlantAndEquipmentNetTables 59 false false R60.htm 40602 - Disclosure - Property, plant and equipment, net - Additional Information (Details) Sheet http://www.caasauto.com/role/DisclosurePropertyPlantAndEquipmentNetAdditionalInformationDetails Property, plant and equipment, net - Additional Information (Details) Details 60 false false R61.htm 40701 - Disclosure - Loans (Details) Sheet http://www.caasauto.com/role/DisclosureLoansDetails Loans (Details) Details http://www.caasauto.com/role/DisclosureLoansTables 61 false false R62.htm 40702 - Disclosure - Loans - Additional Information (Details) Sheet http://www.caasauto.com/role/DisclosureLoansAdditionalInformationDetails Loans - Additional Information (Details) Details 62 false false R63.htm 40801 - Disclosure - Accounts and notes payable (Details) Notes http://www.caasauto.com/role/DisclosureAccountsAndNotesPayableDetails Accounts and notes payable (Details) Details http://www.caasauto.com/role/DisclosureAccountsAndNotesPayableTables 63 false false R64.htm 40901 - Disclosure - Accrued expenses and other payables (Details) Sheet http://www.caasauto.com/role/DisclosureAccruedExpensesAndOtherPayablesDetails Accrued expenses and other payables (Details) Details http://www.caasauto.com/role/DisclosureAccruedExpensesAndOtherPayablesTables 64 false false R65.htm 40902 - Disclosure - Accrued expenses and other payables - Warranty (Details) Sheet http://www.caasauto.com/role/DisclosureAccruedExpensesAndOtherPayablesWarrantyDetails Accrued expenses and other payables - Warranty (Details) Details 65 false false R66.htm 41001 - Disclosure - Other long-term payable (Details) Sheet http://www.caasauto.com/role/DisclosureOtherLongTermPayableDetails Other long-term payable (Details) Details http://www.caasauto.com/role/DisclosureOtherLongTermPayable 66 false false R67.htm 41101 - Disclosure - Redeemable non-controlling interests (Details) Sheet http://www.caasauto.com/role/DisclosureRedeemableNonControllingInterestsDetails Redeemable non-controlling interests (Details) Details http://www.caasauto.com/role/DisclosureRedeemableNonControllingInterests 67 false false R68.htm 41201 - Disclosure - Additional paid-in capital (Details) Sheet http://www.caasauto.com/role/DisclosureAdditionalPaidInCapitalDetails Additional paid-in capital (Details) Details http://www.caasauto.com/role/DisclosureAdditionalPaidInCapitalTables 68 false false R69.htm 41301 - Disclosure - Retained earnings - Appropriated (Details) Sheet http://www.caasauto.com/role/DisclosureRetainedEarningsAppropriatedDetails Retained earnings - Appropriated (Details) Details 69 false false R70.htm 41302 - Disclosure - Retained earnings - Unappropriated (Details) Sheet http://www.caasauto.com/role/DisclosureRetainedEarningsUnappropriatedDetails Retained earnings - Unappropriated (Details) Details 70 false false R71.htm 41303 - Disclosure - Retained earnings (Details) Sheet http://www.caasauto.com/role/DisclosureRetainedEarningsDetails Retained earnings (Details) Details http://www.caasauto.com/role/DisclosureRetainedEarningsTables 71 false false R72.htm 41401 - Disclosure - Accumulated other comprehensive income (Details) Sheet http://www.caasauto.com/role/DisclosureAccumulatedOtherComprehensiveIncomeDetails Accumulated other comprehensive income (Details) Details http://www.caasauto.com/role/DisclosureAccumulatedOtherComprehensiveIncomeTables 72 false false R73.htm 41501 - Disclosure - Treasury stock (Details) Sheet http://www.caasauto.com/role/DisclosureTreasuryStockDetails Treasury stock (Details) Details http://www.caasauto.com/role/DisclosureTreasuryStock 73 false false R74.htm 41601 - Disclosure - Non-controlling interests (Details) Sheet http://www.caasauto.com/role/DisclosureNonControllingInterestsDetails Non-controlling interests (Details) Details http://www.caasauto.com/role/DisclosureNonControllingInterestsTables 74 false false R75.htm 41701 - Disclosure - Net product sales (Details) Sheet http://www.caasauto.com/role/DisclosureNetProductSalesDetails Net product sales (Details) Details http://www.caasauto.com/role/DisclosureNetProductSales 75 false false R76.htm 41801 - Disclosure - Financial (expense)/income, net (Details) Sheet http://www.caasauto.com/role/DisclosureFinancialExpenseIncomeNetDetails Financial (expense)/income, net (Details) Details http://www.caasauto.com/role/DisclosureFinancialExpenseIncomeNetTables 76 false false R77.htm 41901 - Disclosure - Income tax (Details) Sheet http://www.caasauto.com/role/DisclosureIncomeTaxDetails Income tax (Details) Details http://www.caasauto.com/role/DisclosureIncomeTax 77 false false R78.htm 42001 - Disclosure - Income per share (Details) Sheet http://www.caasauto.com/role/DisclosureIncomePerShareDetails Income per share (Details) Details http://www.caasauto.com/role/DisclosureIncomePerShareTables 78 false false R79.htm 42002 - Disclosure - Income per share - Additional Information (Details) Sheet http://www.caasauto.com/role/DisclosureIncomePerShareAdditionalInformationDetails Income per share - Additional Information (Details) Details 79 false false R80.htm 42101 - Disclosure - Significant concentrations (Details) Sheet http://www.caasauto.com/role/DisclosureSignificantConcentrationsDetails Significant concentrations (Details) Details http://www.caasauto.com/role/DisclosureSignificantConcentrations 80 false false R81.htm 42201 - Disclosure - Related party transactions and balances (Details) Sheet http://www.caasauto.com/role/DisclosureRelatedPartyTransactionsAndBalancesDetails Related party transactions and balances (Details) Details http://www.caasauto.com/role/DisclosureRelatedPartyTransactionsAndBalancesTables 81 false false R82.htm 42202 - Disclosure - Related party transactions and balances - Additional Information (Details) Sheet http://www.caasauto.com/role/DisclosureRelatedPartyTransactionsAndBalancesAdditionalInformationDetails Related party transactions and balances - Additional Information (Details) Details 82 false false R83.htm 42301 - Disclosure - Commitments and contingencies (Details) Sheet http://www.caasauto.com/role/DisclosureCommitmentsAndContingenciesDetails Commitments and contingencies (Details) Details http://www.caasauto.com/role/DisclosureCommitmentsAndContingenciesTables 83 false false R84.htm 42302 - Disclosure - Commitments and contingencies - Additional Information (Details) Sheet http://www.caasauto.com/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails Commitments and contingencies - Additional Information (Details) Details 84 false false R85.htm 42501 - Disclosure - Segment reporting (Details) Sheet http://www.caasauto.com/role/DisclosureSegmentReportingDetails Segment reporting (Details) Details http://www.caasauto.com/role/DisclosureSegmentReportingTables 85 false false R86.htm 42502 - Disclosure - Segment reporting - Additional Information (Details) Sheet http://www.caasauto.com/role/DisclosureSegmentReportingAdditionalInformationDetails Segment reporting - Additional Information (Details) Details 86 false false All Reports Book All Reports caas-20200930.xml caas-20200930.xsd caas-20200930_cal.xml caas-20200930_def.xml caas-20200930_lab.xml caas-20200930_pre.xml http://fasb.org/us-gaap/2020-01-31 http://fasb.org/srt/2020-01-31 http://xbrl.sec.gov/dei/2020-01-31 true true