3.22.2 html 288 395 1 true 95 0 false 4 false false R1.htm 100000 - Document - Cover Page Sheet http://quanergy.com/20220630/taxonomy/role/CoverPage Cover Page Cover 1 false false R2.htm 100010 - Statement - Condensed Consolidated Balance Sheets Sheet http://quanergy.com/20220630/taxonomy/role/CondensedConsolidatedBalanceSheets Condensed Consolidated Balance Sheets Statements 2 false false R3.htm 100020 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) Sheet http://quanergy.com/20220630/taxonomy/role/CondensedConsolidatedBalanceSheetsParenthetical Condensed Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 100030 - Statement - Condensed Consolidated Statements of Operations Sheet http://quanergy.com/20220630/taxonomy/role/CondensedConsolidatedStatementsOfOperations Condensed Consolidated Statements of Operations Statements 4 false false R5.htm 100040 - Statement - Condensed Consolidated Statements of Comprehensive Loss Sheet http://quanergy.com/20220630/taxonomy/role/CondensedConsolidatedStatementsOfComprehensiveLoss Condensed Consolidated Statements of Comprehensive Loss Statements 5 false false R6.htm 100050 - Statement - Condensed Consolidated Statements of Stockholder's Equity / (Deficit) Sheet http://quanergy.com/20220630/taxonomy/role/CondensedConsolidatedStatementsOfStockholderSEquityDeficit Condensed Consolidated Statements of Stockholder's Equity / (Deficit) Statements 6 false false R7.htm 100060 - Statement - Condensed Consolidated Statements of Cash Flows Sheet http://quanergy.com/20220630/taxonomy/role/CondensedConsolidatedStatementsOfCashFlows Condensed Consolidated Statements of Cash Flows Statements 7 false false R8.htm 100070 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies Sheet http://quanergy.com/20220630/taxonomy/role/BasisOfPresentationAndSummaryOfSignificantAccountingPolicies Basis of Presentation and Summary of Significant Accounting Policies Notes 8 false false R9.htm 100080 - Disclosure - Reverse Recapitalization Sheet http://quanergy.com/20220630/taxonomy/role/ReverseRecapitalization Reverse Recapitalization Notes 9 false false R10.htm 100090 - Disclosure - Inventory Sheet http://quanergy.com/20220630/taxonomy/role/Inventory Inventory Notes 10 false false R11.htm 100100 - Disclosure - Prepaid Expenses and Other Current Assets Sheet http://quanergy.com/20220630/taxonomy/role/PrepaidExpensesAndOtherCurrentAssets Prepaid Expenses and Other Current Assets Notes 11 false false R12.htm 100110 - Disclosure - Property and Equipment, Net Sheet http://quanergy.com/20220630/taxonomy/role/PropertyAndEquipmentNet Property and Equipment, Net Notes 12 false false R13.htm 100120 - Disclosure - Other Long-Term Assets Sheet http://quanergy.com/20220630/taxonomy/role/OtherLongTermAssets Other Long-Term Assets Notes 13 false false R14.htm 100130 - Disclosure - Other Current Liabilities Sheet http://quanergy.com/20220630/taxonomy/role/OtherCurrentLiabilities Other Current Liabilities Notes 14 false false R15.htm 100140 - Disclosure - Other Long-Term Liabilities Sheet http://quanergy.com/20220630/taxonomy/role/OtherLongTermLiabilities Other Long-Term Liabilities Notes 15 false false R16.htm 100150 - Disclosure - Fair Value Measurements Sheet http://quanergy.com/20220630/taxonomy/role/FairValueMeasurements Fair Value Measurements Notes 16 false false R17.htm 100160 - Disclosure - Common Stock Sheet http://quanergy.com/20220630/taxonomy/role/CommonStock Common Stock Notes 17 false false R18.htm 100170 - Disclosure - Stock-Based Compensation Expense Sheet http://quanergy.com/20220630/taxonomy/role/StockBasedCompensationExpense Stock-Based Compensation Expense Notes 18 false false R19.htm 100180 - Disclosure - Borrowing Arrangements Sheet http://quanergy.com/20220630/taxonomy/role/BorrowingArrangements Borrowing Arrangements Notes 19 false false R20.htm 100190 - Disclosure - Leases Sheet http://quanergy.com/20220630/taxonomy/role/Leases Leases Notes 20 false false R21.htm 100200 - Disclosure - Income Taxes Sheet http://quanergy.com/20220630/taxonomy/role/IncomeTaxes Income Taxes Notes 21 false false R22.htm 100210 - Disclosure - Commitments and Contingencies Sheet http://quanergy.com/20220630/taxonomy/role/CommitmentsAndContingencies Commitments and Contingencies Notes 22 false false R23.htm 100220 - Disclosure - Segment Information and Geographic Information Sheet http://quanergy.com/20220630/taxonomy/role/SegmentInformationAndGeographicInformation Segment Information and Geographic Information Notes 23 false false R24.htm 100230 - Disclosure - Net Loss Per Share Sheet http://quanergy.com/20220630/taxonomy/role/NetLossPerShare Net Loss Per Share Notes 24 false false R25.htm 100240 - Disclosure - Related Party Transactions Sheet http://quanergy.com/20220630/taxonomy/role/RelatedPartyTransactions Related Party Transactions Notes 25 false false R26.htm 100250 - Disclosure - Subsequent Events Sheet http://quanergy.com/20220630/taxonomy/role/SubsequentEvents Subsequent Events Notes 26 false false R27.htm 100260 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Policies) Sheet http://quanergy.com/20220630/taxonomy/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesPolicies Basis of Presentation and Summary of Significant Accounting Policies (Policies) Policies http://quanergy.com/20220630/taxonomy/role/BasisOfPresentationAndSummaryOfSignificantAccountingPolicies 27 false false R28.htm 100270 - Disclosure - Reverse Recapitalization (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/ReverseRecapitalizationTables Reverse Recapitalization (Tables) Tables http://quanergy.com/20220630/taxonomy/role/ReverseRecapitalization 28 false false R29.htm 100280 - Disclosure - Inventory (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/InventoryTables Inventory (Tables) Tables http://quanergy.com/20220630/taxonomy/role/Inventory 29 false false R30.htm 100290 - Disclosure - Prepaid Expenses and Other Current Assets (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/PrepaidExpensesAndOtherCurrentAssetsTables Prepaid Expenses and Other Current Assets (Tables) Tables http://quanergy.com/20220630/taxonomy/role/PrepaidExpensesAndOtherCurrentAssets 30 false false R31.htm 100300 - Disclosure - Property and Equipment, Net (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/PropertyAndEquipmentNetTables Property and Equipment, Net (Tables) Tables http://quanergy.com/20220630/taxonomy/role/PropertyAndEquipmentNet 31 false false R32.htm 100310 - Disclosure - Other Long-Term Assets (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/OtherLongTermAssetsTables Other Long-Term Assets (Tables) Tables http://quanergy.com/20220630/taxonomy/role/OtherLongTermAssets 32 false false R33.htm 100320 - Disclosure - Other Current Liabilities (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/OtherCurrentLiabilitiesTables Other Current Liabilities (Tables) Tables http://quanergy.com/20220630/taxonomy/role/OtherCurrentLiabilities 33 false false R34.htm 100330 - Disclosure - Other Long-term Liabilities (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/OtherLongTermLiabilitiesTables Other Long-term Liabilities (Tables) Tables 34 false false R35.htm 100340 - Disclosure - Fair Value Measurements (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://quanergy.com/20220630/taxonomy/role/FairValueMeasurements 35 false false R36.htm 100350 - Disclosure - Common Stock (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/CommonStockTables Common Stock (Tables) Tables http://quanergy.com/20220630/taxonomy/role/CommonStock 36 false false R37.htm 100360 - Disclosure - Stock-Based Compensation Expense (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/StockBasedCompensationExpenseTables Stock-Based Compensation Expense (Tables) Tables http://quanergy.com/20220630/taxonomy/role/StockBasedCompensationExpense 37 false false R38.htm 100370 - Disclosure - Borrowing Arrangements (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/BorrowingArrangementsTables Borrowing Arrangements (Tables) Tables http://quanergy.com/20220630/taxonomy/role/BorrowingArrangements 38 false false R39.htm 100380 - Disclosure - Leases (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/LeasesTables Leases (Tables) Tables http://quanergy.com/20220630/taxonomy/role/Leases 39 false false R40.htm 100390 - Disclosure - Segment Information and Geographic Information (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/SegmentInformationAndGeographicInformationTables Segment Information and Geographic Information (Tables) Tables http://quanergy.com/20220630/taxonomy/role/SegmentInformationAndGeographicInformation 40 false false R41.htm 100400 - Disclosure - Net Loss Per Share (Tables) Sheet http://quanergy.com/20220630/taxonomy/role/NetLossPerShareTables Net Loss Per Share (Tables) Tables http://quanergy.com/20220630/taxonomy/role/NetLossPerShare 41 false false R42.htm 100410 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/BasisOfPresentationAndSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) Details 42 false false R43.htm 100420 - Disclosure - Reverse Recapitalization - Summary of Business Acquisition Elements Reconciled To Consolidated Financial Statements (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/ReverseRecapitalizationSummaryOfBusinessAcquisitionElementsReconciledToConsolidatedFinancialStatementsDetail Reverse Recapitalization - Summary of Business Acquisition Elements Reconciled To Consolidated Financial Statements (Detail) Details 43 false false R44.htm 100430 - Disclosure - Reverse Recapitalization - Summary of Number of Shares of Common Stock Issued Immediately Following The Consummation of The Business Combination (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/ReverseRecapitalizationSummaryOfNumberOfSharesOfCommonStockIssuedImmediatelyFollowingTheConsummationOfTheBusinessCombinationDetail Reverse Recapitalization - Summary of Number of Shares of Common Stock Issued Immediately Following The Consummation of The Business Combination (Detail) Details 44 false false R45.htm 100440 - Disclosure - Reverse Recapitalization - Summary of Number of Legacy Quanergy Shares (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/ReverseRecapitalizationSummaryOfNumberOfLegacyQuanergySharesDetail Reverse Recapitalization - Summary of Number of Legacy Quanergy Shares (Detail) Details 45 false false R46.htm 100450 - Disclosure - Reverse Recapitalization - Additional Information (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/ReverseRecapitalizationAdditionalInformationDetail Reverse Recapitalization - Additional Information (Detail) Details 46 false false R47.htm 100460 - Disclosure - Inventory - Schedule of Inventory (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/InventoryScheduleOfInventoryDetail Inventory - Schedule of Inventory (Detail) Details 47 false false R48.htm 100470 - Disclosure - Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Assets Current (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/PrepaidExpensesAndOtherCurrentAssetsScheduleOfPrepaidExpensesAndOtherAssetsCurrentDetail Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Assets Current (Detail) Details 48 false false R49.htm 100480 - Disclosure - Property and Equipment, Net - Schedule of Property Plant and Equipment (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/PropertyAndEquipmentNetScheduleOfPropertyPlantAndEquipmentDetail Property and Equipment, Net - Schedule of Property Plant and Equipment (Detail) Details 49 false false R50.htm 100490 - Disclosure - Property and Equipment, Net - Additional Information (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/PropertyAndEquipmentNetAdditionalInformationDetail Property and Equipment, Net - Additional Information (Detail) Details 50 false false R51.htm 100500 - Disclosure - Other Long-Term Assets - Schedule of Other Long-Term Assets (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/OtherLongTermAssetsScheduleOfOtherLongTermAssetsDetail Other Long-Term Assets - Schedule of Other Long-Term Assets (Detail) Details 51 false false R52.htm 100510 - Disclosure - Other Current Liabilities - Schedule of Other Current Liabilities (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/OtherCurrentLiabilitiesScheduleOfOtherCurrentLiabilitiesDetail Other Current Liabilities - Schedule of Other Current Liabilities (Detail) Details 52 false false R53.htm 100520 - Disclosure - Other Long-Term Liabilities - Schedule of Other Non Current Liabilities (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/OtherLongTermLiabilitiesScheduleOfOtherNonCurrentLiabilitiesDetail Other Long-Term Liabilities - Schedule of Other Non Current Liabilities (Detail) Details 53 false false R54.htm 100530 - Disclosure - Fair Value Measurements - Summary of Information About The Company's Financial Assets and Liabilities That Are Measured at Fair Value On Recurring Basis (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/FairValueMeasurementsSummaryOfInformationAboutTheCompanysFinancialAssetsAndLiabilitiesThatAreMeasuredAtFairValueOnRecurringBasisDetail Fair Value Measurements - Summary of Information About The Company's Financial Assets and Liabilities That Are Measured at Fair Value On Recurring Basis (Detail) Details 54 false false R55.htm 100540 - Disclosure - Fair Value Measurements - Summary of Changes in Level 3 Fair Value Instruments (Details) Sheet http://quanergy.com/20220630/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfChangesInLevel3FairValueInstrumentsDetails Fair Value Measurements - Summary of Changes in Level 3 Fair Value Instruments (Details) Details 55 false false R56.htm 100550 - Disclosure - Fair Value Measurements - Additional Information (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/FairValueMeasurementsAdditionalInformationDetail Fair Value Measurements - Additional Information (Detail) Details 56 false false R57.htm 100560 - Disclosure - Common Stock - Summary of Stock By Class (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/CommonStockSummaryOfStockByClassDetail Common Stock - Summary of Stock By Class (Detail) Details 57 false false R58.htm 100570 - Disclosure - Common Stock - Summary of Stockholders' Equity Note, Warrants or Rights (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/CommonStockSummaryOfStockholdersEquityNoteWarrantsOrRightsDetail Common Stock - Summary of Stockholders' Equity Note, Warrants or Rights (Detail) Details 58 false false R59.htm 100600 - Disclosure - Common Stock - Additional Information (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/CommonStockAdditionalInformationDetail Common Stock - Additional Information (Detail) Details 59 false false R60.htm 100610 - Disclosure - Stock-Based Compensation Expense - Summary of Share-Based Payment Arrangement, Option, Activity (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/StockBasedCompensationExpenseSummaryOfShareBasedPaymentArrangementOptionActivityDetail Stock-Based Compensation Expense - Summary of Share-Based Payment Arrangement, Option, Activity (Detail) Details 60 false false R61.htm 100620 - Disclosure - Stock-Based Compensation Expense - Summary of Share-Based Payment Arrangement, Restricted Stock And Restricted Stock Unit, Activity (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/StockBasedCompensationExpenseSummaryOfShareBasedPaymentArrangementRestrictedStockAndRestrictedStockUnitActivityDetail Stock-Based Compensation Expense - Summary of Share-Based Payment Arrangement, Restricted Stock And Restricted Stock Unit, Activity (Detail) Details 61 false false R62.htm 100630 - Disclosure - Stock-Based Compensation Expense - Summary of Share-Based Payment Arrangement, Expensed And Capitalized, Amount (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/StockBasedCompensationExpenseSummaryOfShareBasedPaymentArrangementExpensedAndCapitalizedAmountDetail Stock-Based Compensation Expense - Summary of Share-Based Payment Arrangement, Expensed And Capitalized, Amount (Detail) Details 62 false false R63.htm 100640 - Disclosure - Stock-Based Compensation Expense - Additional Information (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/StockBasedCompensationExpenseAdditionalInformationDetail Stock-Based Compensation Expense - Additional Information (Detail) Details 63 false false R64.htm 100650 - Disclosure - Borrowing Arrangements - Summary of Estimated Fair Value of The 2022 And 2023 Notes Embedded Derivative (Detail) Notes http://quanergy.com/20220630/taxonomy/role/BorrowingArrangementsSummaryOfEstimatedFairValueOfThe2022And2023NotesEmbeddedDerivativeDetail Borrowing Arrangements - Summary of Estimated Fair Value of The 2022 And 2023 Notes Embedded Derivative (Detail) Details 64 false false R65.htm 100660 - Disclosure - Borrowing Arrangements - Schedule of Interest Expense (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/BorrowingArrangementsScheduleOfInterestExpenseDetail Borrowing Arrangements - Schedule of Interest Expense (Detail) Details 65 false false R66.htm 100670 - Disclosure - Borrowing Arrangements - Additional Information (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/BorrowingArrangementsAdditionalInformationDetail Borrowing Arrangements - Additional Information (Detail) Details 66 false false R67.htm 100680 - Disclosure - Leases - Summary of Supplemental Cash Flow Information Related To Leases (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/LeasesSummaryOfSupplementalCashFlowInformationRelatedToLeasesDetail Leases - Summary of Supplemental Cash Flow Information Related To Leases (Detail) Details 67 false false R68.htm 100690 - Disclosure - Leases - Summary of Maturities of The Operating Lease Liabilities (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/LeasesSummaryOfMaturitiesOfTheOperatingLeaseLiabilitiesDetail Leases - Summary of Maturities of The Operating Lease Liabilities (Detail) Details 68 false false R69.htm 100700 - Disclosure - Leases - Summary of Future Minimum Rental Payments For Operating Leases (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/LeasesSummaryOfFutureMinimumRentalPaymentsForOperatingLeasesDetail Leases - Summary of Future Minimum Rental Payments For Operating Leases (Detail) Details 69 false false R70.htm 100710 - Disclosure - Leases - Summary of weighted average remaining lease term (Details) Sheet http://quanergy.com/20220630/taxonomy/role/DisclosureLeasesSummaryOfWeightedAverageRemainingLeaseTermDetails Leases - Summary of weighted average remaining lease term (Details) Details 70 false false R71.htm 100720 - Disclosure - Leases - Additional Information (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/LeasesAdditionalInformationDetail Leases - Additional Information (Detail) Details 71 false false R72.htm 100730 - Disclosure - Income Taxes - Additional Information (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/IncomeTaxesAdditionalInformationDetail Income Taxes - Additional Information (Detail) Details 72 false false R73.htm 100740 - Disclosure - Commitments and Contingencies - Additional Information (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/CommitmentsAndContingenciesAdditionalInformationDetail Commitments and Contingencies - Additional Information (Detail) Details 73 false false R74.htm 100750 - Disclosure - Segment Information and Geographic Information - Summary of Revenue by Geographical Region (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/SegmentInformationAndGeographicInformationSummaryOfRevenueByGeographicalRegionDetail Segment Information and Geographic Information - Summary of Revenue by Geographical Region (Detail) Details 74 false false R75.htm 100760 - Disclosure - Net Loss Per Share - Summary of Basic and Diluted Net Income (Loss) Per Ordinary Share (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/NetLossPerShareSummaryOfBasicAndDilutedNetIncomeLossPerOrdinaryShareDetail Net Loss Per Share - Summary of Basic and Diluted Net Income (Loss) Per Ordinary Share (Detail) Details 75 false false R76.htm 100770 - Disclosure - Net Loss Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per share (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/NetLossPerShareScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareDetail Net Loss Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per share (Detail) Details 76 false false R77.htm 100790 - Disclosure - Related Party Transactions - Additional Information (Detail) Sheet http://quanergy.com/20220630/taxonomy/role/RelatedPartyTransactionsAdditionalInformationDetail Related Party Transactions - Additional Information (Detail) Details 77 false false All Reports Book All Reports ck0001794621-20220630.htm ck0001794621-20220630.xsd ck0001794621-20220630_cal.xml ck0001794621-20220630_def.xml ck0001794621-20220630_lab.xml ck0001794621-20220630_pre.xml ck0001794621-ex10_1.htm ck0001794621-ex10_2.htm ck0001794621-ex10_3.htm ck0001794621-ex31_1.htm ck0001794621-ex31_2.htm ck0001794621-ex32_1.htm http://fasb.org/us-gaap/2022 http://xbrl.sec.gov/dei/2022 true true