3.22.1 html 110 252 1 false 46 0 false 5 false false R1.htm 100000 - Document - Document and Entity Information Sheet http://www.ambarella.com/20220430/taxonomy/role/DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 100010 - Statement - Condensed Consolidated Balance Sheets (Unaudited) Sheet http://www.ambarella.com/20220430/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsUnaudited Condensed Consolidated Balance Sheets (Unaudited) Statements 2 false false R3.htm 100020 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) Sheet http://www.ambarella.com/20220430/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsUnauditedParenthetical Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) Statements 3 false false R4.htm 100030 - Statement - Condensed Consolidated Statements of Operations (Unaudited) Sheet http://www.ambarella.com/20220430/taxonomy/role/StatementCondensedConsolidatedStatementsOfOperationsUnaudited Condensed Consolidated Statements of Operations (Unaudited) Statements 4 false false R5.htm 100040 - Statement - Condensed Consolidated Statements of Comprehensive Loss (Unaudited) Sheet http://www.ambarella.com/20220430/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveLossUnaudited Condensed Consolidated Statements of Comprehensive Loss (Unaudited) Statements 5 false false R6.htm 100050 - Statement - Condensed Consolidated Statements of Shareholders' Equity (Unaudited) Sheet http://www.ambarella.com/20220430/taxonomy/role/StatementCondensedConsolidatedStatementsOfShareholdersEquityUnaudited Condensed Consolidated Statements of Shareholders' Equity (Unaudited) Statements 6 false false R7.htm 100060 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) Sheet http://www.ambarella.com/20220430/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited Condensed Consolidated Statements of Cash Flows (Unaudited) Statements 7 false false R8.htm 100070 - Disclosure - Organization and Summary of Significant Accounting Policies Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPolicies Organization and Summary of Significant Accounting Policies Notes 8 false false R9.htm 100080 - Disclosure - Inventories Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureInventories Inventories Notes 9 false false R10.htm 100090 - Disclosure - Property and Equipment, Net Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosurePropertyAndEquipmentNet Property and Equipment, Net Notes 10 false false R11.htm 100100 - Disclosure - Intangible Assets, Net Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureIntangibleAssetsNet Intangible Assets, Net Notes 11 false false R12.htm 100110 - Disclosure - Accrued and Other Current Liabilities Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureAccruedAndOtherCurrentLiabilities Accrued and Other Current Liabilities Notes 12 false false R13.htm 100120 - Disclosure - Leases Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureLeases Leases Notes 13 false false R14.htm 100130 - Disclosure - Other Long-Term Liabilities Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureOtherLongTermLiabilities Other Long-Term Liabilities Notes 14 false false R15.htm 100140 - Disclosure - Capital Stock Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureCapitalStock Capital Stock Notes 15 false false R16.htm 100150 - Disclosure - Stock-based Compensation Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureStockBasedCompensation Stock-based Compensation Notes 16 false false R17.htm 100160 - Disclosure - Net Loss Per Ordinary Share Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureNetLossPerOrdinaryShare Net Loss Per Ordinary Share Notes 17 false false R18.htm 100170 - Disclosure - Income Taxes Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureIncomeTaxes Income Taxes Notes 18 false false R19.htm 100180 - Disclosure - Commitments and Contingencies Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureCommitmentsAndContingencies Commitments and Contingencies Notes 19 false false R20.htm 100190 - Disclosure - Segment Reporting Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureSegmentReporting Segment Reporting Notes 20 false false R21.htm 100200 - Disclosure - Subsequent Events Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureSubsequentEvents Subsequent Events Notes 21 false false R22.htm 100210 - Disclosure - Organization and Summary of Significant Accounting Policies (Policies) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesPolicies Organization and Summary of Significant Accounting Policies (Policies) Policies http://www.ambarella.com/20220430/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPolicies 22 false false R23.htm 100220 - Disclosure - Organization and Summary of Significant Accounting Policies (Tables) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesTables Organization and Summary of Significant Accounting Policies (Tables) Tables http://www.ambarella.com/20220430/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPolicies 23 false false R24.htm 100230 - Disclosure - Inventories (Tables) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureInventoriesTables Inventories (Tables) Tables http://www.ambarella.com/20220430/taxonomy/role/DisclosureInventories 24 false false R25.htm 100240 - Disclosure - Property and Equipment, Net (Tables) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosurePropertyAndEquipmentNetTables Property and Equipment, Net (Tables) Tables http://www.ambarella.com/20220430/taxonomy/role/DisclosurePropertyAndEquipmentNet 25 false false R26.htm 100250 - Disclosure - Intangible Assets, Net (Tables) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureIntangibleAssetsNetTables Intangible Assets, Net (Tables) Tables http://www.ambarella.com/20220430/taxonomy/role/DisclosureIntangibleAssetsNet 26 false false R27.htm 100260 - Disclosure - Accrued and Other Current Liabilities (Tables) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureAccruedAndOtherCurrentLiabilitiesTables Accrued and Other Current Liabilities (Tables) Tables http://www.ambarella.com/20220430/taxonomy/role/DisclosureAccruedAndOtherCurrentLiabilities 27 false false R28.htm 100270 - Disclosure - Leases (Tables) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureLeasesTables Leases (Tables) Tables http://www.ambarella.com/20220430/taxonomy/role/DisclosureLeases 28 false false R29.htm 100280 - Disclosure - Other Long-Term Liabilities (Tables) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureOtherLongTermLiabilitiesTables Other Long-Term Liabilities (Tables) Tables http://www.ambarella.com/20220430/taxonomy/role/DisclosureOtherLongTermLiabilities 29 false false R30.htm 100290 - Disclosure - Capital Stock (Tables) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureCapitalStockTables Capital Stock (Tables) Tables http://www.ambarella.com/20220430/taxonomy/role/DisclosureCapitalStock 30 false false R31.htm 100300 - Disclosure - Stock-based Compensation (Tables) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureStockBasedCompensationTables Stock-based Compensation (Tables) Tables http://www.ambarella.com/20220430/taxonomy/role/DisclosureStockBasedCompensation 31 false false R32.htm 100310 - Disclosure - Net Loss Per Ordinary Share (Tables) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureNetLossPerOrdinaryShareTables Net Loss Per Ordinary Share (Tables) Tables http://www.ambarella.com/20220430/taxonomy/role/DisclosureNetLossPerOrdinaryShare 32 false false R33.htm 100320 - Disclosure - Income Taxes (Tables) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureIncomeTaxesTables Income Taxes (Tables) Tables http://www.ambarella.com/20220430/taxonomy/role/DisclosureIncomeTaxes 33 false false R34.htm 100330 - Disclosure - Segment Reporting (Tables) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureSegmentReportingTables Segment Reporting (Tables) Tables http://www.ambarella.com/20220430/taxonomy/role/DisclosureSegmentReporting 34 false false R35.htm 100340 - Disclosure - Organization and Summary of Significant Accounting Policies - Additional Information (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail Organization and Summary of Significant Accounting Policies - Additional Information (Detail) Details 35 false false R36.htm 100350 - Disclosure - Organization and Summary of Significant Accounting Policies - Schedule of Cash, Cash Equivalents and Restricted Cash (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureOrganizationAndSummaryOfSignificantAccountingPoliciesScheduleOfCashCashEquivalentsAndRestrictedCashDetail Organization and Summary of Significant Accounting Policies - Schedule of Cash, Cash Equivalents and Restricted Cash (Detail) Details 36 false false R37.htm 100360 - Disclosure - Inventories - Schedule of Inventory (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureInventoriesScheduleOfInventoryDetail Inventories - Schedule of Inventory (Detail) Details 37 false false R38.htm 100370 - Disclosure - Property and Equipment, Net - Additional Information (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosurePropertyAndEquipmentNetAdditionalInformationDetail Property and Equipment, Net - Additional Information (Detail) Details 38 false false R39.htm 100380 - Disclosure - Property and Equipment, Net - Schedule of Property and Equipment (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosurePropertyAndEquipmentNetScheduleOfPropertyAndEquipmentDetail Property and Equipment, Net - Schedule of Property and Equipment (Detail) Details 39 false false R40.htm 100390 - Disclosure - Intangible Assets, Net - Additional Information (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureIntangibleAssetsNetAdditionalInformationDetail Intangible Assets, Net - Additional Information (Detail) Details 40 false false R41.htm 100400 - Disclosure - Intangible Assets, Net - Summary of Components of Intangible Assets (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureIntangibleAssetsNetSummaryOfComponentsOfIntangibleAssetsDetail Intangible Assets, Net - Summary of Components of Intangible Assets (Detail) Details 41 false false R42.htm 100410 - Disclosure - Intangible Assets, Net - Summary of Expected Future Amortization Expense Related to Intangible Assets (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureIntangibleAssetsNetSummaryOfExpectedFutureAmortizationExpenseRelatedToIntangibleAssetsDetail Intangible Assets, Net - Summary of Expected Future Amortization Expense Related to Intangible Assets (Detail) Details 42 false false R43.htm 100420 - Disclosure - Accrued and Other Current Liabilities - Schedule of Accrued and Other Current Liabilities (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureAccruedAndOtherCurrentLiabilitiesScheduleOfAccruedAndOtherCurrentLiabilitiesDetail Accrued and Other Current Liabilities - Schedule of Accrued and Other Current Liabilities (Detail) Details 43 false false R44.htm 100430 - Disclosure - Accrued and Other Current Liabilities - Additional Information (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureAccruedAndOtherCurrentLiabilitiesAdditionalInformationDetail Accrued and Other Current Liabilities - Additional Information (Detail) Details 44 false false R45.htm 100440 - Disclosure - Leases - Additional Information (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureLeasesAdditionalInformationDetail Leases - Additional Information (Detail) Details 45 false false R46.htm 100450 - Disclosure - Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureLeasesScheduleOfSupplementalCashFlowInformationRelatedToLeasesDetail Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Detail) Details 46 false false R47.htm 100460 - Disclosure - Leases - Schedule of Future Minimum Lease Payments for Lease Liabilities (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureLeasesScheduleOfFutureMinimumLeasePaymentsForLeaseLiabilitiesDetail Leases - Schedule of Future Minimum Lease Payments for Lease Liabilities (Detail) Details 47 false false R48.htm 100480 - Disclosure - Other Long-Term Liabilities - Schedule of Other Long-Term Liabilities (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureOtherLongTermLiabilitiesScheduleOfOtherLongTermLiabilitiesDetail Other Long-Term Liabilities - Schedule of Other Long-Term Liabilities (Detail) Details 48 false false R49.htm 100490 - Disclosure - Capital Stock - Additional Information (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureCapitalStockAdditionalInformationDetail Capital Stock - Additional Information (Detail) Details 49 false false R50.htm 100500 - Disclosure - Capital Stock - Schedule of Ordinary Shares Reserved for Future Issuance under Company's Equity Plans and ESPP (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureCapitalStockScheduleOfOrdinarySharesReservedForFutureIssuanceUnderCompanySEquityPlansAndESPPDetail Capital Stock - Schedule of Ordinary Shares Reserved for Future Issuance under Company's Equity Plans and ESPP (Detail) Details 50 false false R51.htm 100510 - Disclosure - Stock-based Compensation - Classification of Stock-based Compensation (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureStockBasedCompensationClassificationOfStockBasedCompensationDetail Stock-based Compensation - Classification of Stock-based Compensation (Detail) Details 51 false false R52.htm 100520 - Disclosure - Stock-based Compensation - Additional Information (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureStockBasedCompensationAdditionalInformationDetail Stock-based Compensation - Additional Information (Detail) Details 52 false false R53.htm 100530 - Disclosure - Stock-based Compensation - Weighted-Average Assumptions Used to Estimate Fair Value (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureStockBasedCompensationWeightedAverageAssumptionsUsedToEstimateFairValueDetail Stock-based Compensation - Weighted-Average Assumptions Used to Estimate Fair Value (Detail) Details 53 false false R54.htm 100540 - Disclosure - Stock-based Compensation - Stock Option Activities (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureStockBasedCompensationStockOptionActivitiesDetail Stock-based Compensation - Stock Option Activities (Detail) Details 54 false false R55.htm 100550 - Disclosure - Stock-based Compensation - Restricted Stock Units Activities (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureStockBasedCompensationRestrictedStockUnitsActivitiesDetail Stock-based Compensation - Restricted Stock Units Activities (Detail) Details 55 false false R56.htm 100560 - Disclosure - Net Loss Per Ordinary Share - Computation of Basic and Diluted Loss Per Ordinary Share (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureNetLossPerOrdinaryShareComputationOfBasicAndDilutedLossPerOrdinaryShareDetail Net Loss Per Ordinary Share - Computation of Basic and Diluted Loss Per Ordinary Share (Detail) Details 56 false false R57.htm 100570 - Disclosure - Net Loss Per Ordinary Share - Weighted-Average Potentially Dilutive Securities Excluded from Computation of Diluted Loss Per Ordinary Share (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureNetLossPerOrdinaryShareWeightedAveragePotentiallyDilutiveSecuritiesExcludedFromComputationOfDilutedLossPerOrdinaryShareDetail Net Loss Per Ordinary Share - Weighted-Average Potentially Dilutive Securities Excluded from Computation of Diluted Loss Per Ordinary Share (Detail) Details 57 false false R58.htm 100580 - Disclosure - Income Taxes - Summary of Income Taxes (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureIncomeTaxesSummaryOfIncomeTaxesDetail Income Taxes - Summary of Income Taxes (Detail) Details 58 false false R59.htm 100590 - Disclosure - Income Taxes - Additional Information (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureIncomeTaxesAdditionalInformationDetail Income Taxes - Additional Information (Detail) Details 59 false false R60.htm 100600 - Disclosure - Commitments and Contingencies - Additional Information (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail Commitments and Contingencies - Additional Information (Detail) Details 60 false false R61.htm 100610 - Disclosure - Segment Reporting - Additional Information (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureSegmentReportingAdditionalInformationDetail Segment Reporting - Additional Information (Detail) Details 61 false false R62.htm 100620 - Disclosure - Segment Reporting - Company's Revenue by Geographic Region Based on Bill-to Location (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureSegmentReportingCompanySRevenueByGeographicRegionBasedOnBillToLocationDetail Segment Reporting - Company's Revenue by Geographic Region Based on Bill-to Location (Detail) Details 62 false false R63.htm 100630 - Disclosure - Subsequent Events - Additional Information (Detail) Sheet http://www.ambarella.com/20220430/taxonomy/role/DisclosureSubsequentEventsAdditionalInformationDetail Subsequent Events - Additional Information (Detail) Details 63 false false All Reports Book All Reports amba-10q_20220430.htm amba-20220430.xsd amba-20220430_cal.xml amba-20220430_def.xml amba-20220430_lab.xml amba-20220430_pre.xml amba-ex101_90.htm amba-ex102_91.htm amba-ex311_8.htm amba-ex312_6.htm amba-ex321_7.htm http://fasb.org/us-gaap/2022 http://xbrl.sec.gov/dei/2022 true true