{ "instance": { "nktx-10q_20210930.htm": { "axisCustom": 0, "axisStandard": 20, "contextCount": 164, "dts": { "calculationLink": { "local": [ "nktx-20210930_cal.xml" ] }, "definitionLink": { "local": [ "nktx-20210930_def.xml" ] }, "inline": { "local": [ "nktx-10q_20210930.htm" ] }, "labelLink": { "local": [ "nktx-20210930_lab.xml" ] }, "presentationLink": { "local": [ "nktx-20210930_pre.xml" ] }, "schema": { "local": [ "nktx-20210930.xsd" ], "remote": [ "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd", "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd", "http://www.xbrl.org/2003/xl-2003-12-31.xsd", "http://www.xbrl.org/2003/xlink-2003-12-31.xsd", "http://www.xbrl.org/2005/xbrldt-2005.xsd", "https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd", "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd", "https://xbrl.sec.gov/country/2021/country-2021.xsd", "https://xbrl.sec.gov/currency/2021/currency-2021.xsd", "https://xbrl.sec.gov/dei/2021/dei-2021.xsd", "https://xbrl.sec.gov/exch/2021/exch-2021.xsd", "http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd", "https://xbrl.sec.gov/naics/2021/naics-2021.xsd", "https://xbrl.sec.gov/sic/2021/sic-2021.xsd", "https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd", "http://www.xbrl.org/2006/ref-2006-02-27.xsd", "https://xbrl.fasb.org/srt/2021/elts/srt-types-2021-01-31.xsd", "https://xbrl.fasb.org/srt/2021/elts/srt-roles-2021-01-31.xsd", "https://xbrl.sec.gov/stpr/2021/stpr-2021.xsd", "https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd", "https://xbrl.fasb.org/us-gaap/2021/elts/us-types-2021-01-31.xsd", "https://xbrl.fasb.org/us-gaap/2021/elts/us-roles-2021-01-31.xsd", "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd" ] } }, "elementCount": 366, "entityCount": 1, "hidden": { "http://fasb.org/us-gaap/2021-01-31": 22, "http://nkartatx.com/20210930": 1, "http://xbrl.sec.gov/dei/2021": 4, "total": 27 }, "keyCustom": 32, "keyStandard": 261, "memberCustom": 14, "memberStandard": 25, "nsprefix": "nktx", "nsuri": "http://nkartatx.com/20210930", "report": { "R1": { "firstAnchor": { "ancestors": [ "p", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "true", "longName": "100000 - Document - Document and Entity Information", "role": "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation", "shortName": "Document and Entity Information", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "p", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R10": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100090 - Disclosure - Balance Sheet Components", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponents", "shortName": "Balance Sheet Components", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R11": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100100 - Disclosure - Leases", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeases", "shortName": "Leases", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R12": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100110 - Disclosure - Commitments and Contingencies", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingencies", "shortName": "Commitments and Contingencies", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R13": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CollaborativeArrangementDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100120 - Disclosure - CRISPR Collaboration Agreement", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreement", "shortName": "CRISPR Collaboration Agreement", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CollaborativeArrangementDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R14": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100130 - Disclosure - Share-Based Compensation", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensation", "shortName": "Share-Based Compensation", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R15": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100140 - Disclosure - Income Taxes", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureIncomeTaxes", "shortName": "Income Taxes", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R16": { "firstAnchor": { "ancestors": [ "us-gaap:SignificantAccountingPoliciesTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100150 - Disclosure - Basis of Presentation and Significant Accounting Policies (Policies)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies", "shortName": "Basis of Presentation and Significant Accounting Policies (Policies)", "subGroupType": "policies", "uniqueAnchor": { "ancestors": [ "us-gaap:SignificantAccountingPoliciesTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R17": { "firstAnchor": { "ancestors": [ "us-gaap:EarningsPerShareTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100160 - Disclosure - Net Loss Per Share (Tables)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareTables", "shortName": "Net Loss Per Share (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:EarningsPerShareTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R18": { "firstAnchor": { "ancestors": [ "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100170 - Disclosure - Fair Value of Financial Instruments (Tables)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsTables", "shortName": "Fair Value of Financial Instruments (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R19": { "firstAnchor": { "ancestors": [ "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "nktx:ScheduleOfPrepaidExpensesAndOtherCurrentAssetsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100180 - Disclosure - Balance Sheet Components (Tables)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsTables", "shortName": "Balance Sheet Components (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "nktx:ScheduleOfPrepaidExpensesAndOtherCurrentAssetsTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R2": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "100010 - Statement - CONDENSED BALANCE SHEETS (Unaudited)", "role": "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited", "shortName": "CONDENSED BALANCE SHEETS (Unaudited)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20201231", "decimals": "-3", "lang": null, "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R20": { "firstAnchor": { "ancestors": [ "us-gaap:LesseeOperatingLeasesTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100190 - Disclosure - Leases (Tables)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesTables", "shortName": "Leases (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:LesseeOperatingLeasesTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R21": { "firstAnchor": { "ancestors": [ "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100200 - Disclosure - Share-Based Compensation (Tables)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationTables", "shortName": "Share-Based Compensation (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R22": { "firstAnchor": { "ancestors": [ "span", "p", "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:NumberOfOperatingSegments", "reportCount": 1, "unique": true, "unitRef": "U_nktxSegment", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100210 - Disclosure - Organization and Description of Business - Additional Information (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails", "shortName": "Organization and Description of Business - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:NumberOfOperatingSegments", "reportCount": 1, "unique": true, "unitRef": "U_nktxSegment", "xsiNil": "false" } }, "R23": { "firstAnchor": null, "groupType": "disclosure", "isDefault": "false", "longName": "100220 - Disclosure - Basis of Presentation and Significant Accounting Polices - Additional Information (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicesAdditionalInformationDetails", "shortName": "Basis of Presentation and Significant Accounting Polices - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R24": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210701_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:NetIncomeLoss", "reportCount": 1, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100230 - Disclosure - Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareComputationOfBasicAndDilutedNetLossPerShareDetails", "shortName": "Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "us-gaap:EarningsPerShareTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210701_20210930", "decimals": "0", "lang": null, "name": "us-gaap:WeightedAverageNumberOfSharesIssuedBasic", "reportCount": 1, "unique": true, "unitRef": "U_xbrlishares", "xsiNil": "false" } }, "R25": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "us-gaap:EarningsPerShareTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": "0", "first": true, "lang": null, "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "reportCount": 1, "unique": true, "unitRef": "U_xbrlishares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100240 - Disclosure - Net Loss Per Share - Summarizes the Outstanding Potentially Dilutive Securities Excluded in Calculation of Diluted Net Loss Per Share (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareSummarizesOutstandingPotentiallyDilutiveSecuritiesExcludedInCalculationOfDilutedNetLossPerShareDetails", "shortName": "Net Loss Per Share - Summarizes the Outstanding Potentially Dilutive Securities Excluded in Calculation of Diluted Net Loss Per Share (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "us-gaap:EarningsPerShareTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": "0", "first": true, "lang": null, "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "reportCount": 1, "unique": true, "unitRef": "U_xbrlishares", "xsiNil": "false" } }, "R26": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:MoneyMarketFundsAtCarryingValue", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100250 - Disclosure - Fair Value of Financial Instruments - Summary of Fair Value of Financial Instrument (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails", "shortName": "Fair Value of Financial Instruments - Summary of Fair Value of Financial Instrument (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "us-gaap:FairValueDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:MoneyMarketFundsAtCarryingValue", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R27": { "firstAnchor": { "ancestors": [ "span", "p", "ix:continuation", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20200101_20201231", "decimals": "-3", "first": true, "lang": null, "name": "nktx:Impairments", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100260 - Disclosure - Fair Value of Financial Instruments - Additional Information (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails", "shortName": "Fair Value of Financial Instruments - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "ix:continuation", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20200101_20201231", "decimals": "-3", "first": true, "lang": null, "name": "nktx:Impairments", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R28": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_us-gaapInvestmentTypeAxis_us-gaapShortTermInvestmentsMember_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100270 - Disclosure - Fair Value of Financial Instruments - Schedule of Short-term Investments Accounted as Available-for-sale Securities (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "shortName": "Fair Value of Financial Instruments - Schedule of Short-term Investments Accounted as Available-for-sale Securities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_us-gaapInvestmentTypeAxis_us-gaapShortTermInvestmentsMember_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R29": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "nktx:ScheduleOfPrepaidExpensesAndOtherCurrentAssetsTableTextBlock", "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PrepaidExpenseCurrent", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100280 - Disclosure - Balance Sheet Components - Schedule of Prepaid Expenses and Other Current Assets (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPrepaidExpensesAndOtherCurrentAssetsDetails", "shortName": "Balance Sheet Components - Schedule of Prepaid Expenses and Other Current Assets (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "nktx:ScheduleOfPrepaidExpensesAndOtherCurrentAssetsTableTextBlock", "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PrepaidExpenseCurrent", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R3": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210701_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ResearchAndDevelopmentExpense", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "100020 - Statement - CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited)", "role": "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited", "shortName": "CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210701_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ResearchAndDevelopmentExpense", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R30": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:PropertyPlantAndEquipmentTextBlock", "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PropertyPlantAndEquipmentGross", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100290 - Disclosure - Balance Sheet Components - Schedule of Property and Equipment, Net (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails", "shortName": "Balance Sheet Components - Schedule of Property and Equipment, Net (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:PropertyPlantAndEquipmentTextBlock", "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PropertyPlantAndEquipmentGross", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R31": { "firstAnchor": { "ancestors": [ "p", "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210701_20210930", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:DepreciationDepletionAndAmortization", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100300 - Disclosure - Balance Sheet Components - Additional Information (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsAdditionalInformationDetails", "shortName": "Balance Sheet Components - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210701_20210930", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:DepreciationDepletionAndAmortization", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R32": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock", "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:EmployeeRelatedLiabilitiesCurrent", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100310 - Disclosure - Balance Sheet Components - Schedule of Accrued Other Current Liabilities (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfAccruedOtherCurrentLiabilitiesDetails", "shortName": "Balance Sheet Components - Schedule of Accrued Other Current Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock", "us-gaap:SupplementalBalanceSheetDisclosuresTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:EmployeeRelatedLiabilitiesCurrent", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R33": { "firstAnchor": { "ancestors": [ "p", "us-gaap:LesseeOperatingLeasesTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210701_20210930", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:OperatingLeaseExpense", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100320 - Disclosure - Leases - Additional Information (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails", "shortName": "Leases - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:LesseeOperatingLeasesTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210701_20210930", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:OperatingLeaseExpense", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R34": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100330 - Disclosure - Leases - Schedule of Maturities of Operating Lease Liabilities (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails", "shortName": "Leases - Schedule of Maturities of Operating Lease Liabilities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "ix:continuation", "ix:continuation", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R35": { "firstAnchor": { "ancestors": [ "p", "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210930", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:GuaranteeObligationsCurrentCarryingValue", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100350 - Disclosure - Commitments and Contingencies - Additional Information (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails", "shortName": "Commitments and Contingencies - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210930", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:GuaranteeObligationsCurrentCarryingValue", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R36": { "firstAnchor": { "ancestors": [ "p", "us-gaap:CollaborativeArrangementDisclosureTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_us-gaapResearchAndDevelopmentArrangementContractToPerformForOthersByTypeAxis_nktxDevelopmentAndRegulatoryApprovalMilestonesMember_us-gaapTypeOfArrangementAxis_nktxResearchCollaborationAgreementMember_20210930", "decimals": "-5", "first": true, "lang": null, "name": "nktx:ReceivableUnderResearchCostSharingProvision", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100360 - Disclosure - CRISPR Collaboration Agreement - Additional Information (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails", "shortName": "CRISPR Collaboration Agreement - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:CollaborativeArrangementDisclosureTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_us-gaapResearchAndDevelopmentArrangementContractToPerformForOthersByTypeAxis_nktxDevelopmentAndRegulatoryApprovalMilestonesMember_us-gaapTypeOfArrangementAxis_nktxResearchCollaborationAgreementMember_20210930", "decimals": "-5", "first": true, "lang": null, "name": "nktx:ReceivableUnderResearchCostSharingProvision", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R37": { "firstAnchor": { "ancestors": [ "span", "p", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": "2", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD_xbrlishares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100370 - Disclosure - Share-Based Compensation - Additional Information (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails", "shortName": "Share-Based Compensation - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "p", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": "2", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD_xbrlishares", "xsiNil": "false" } }, "R38": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20201231", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "reportCount": 1, "unitRef": "U_xbrlishares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100380 - Disclosure - Share-Based Compensation - Summary of Stock Option Activity (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails", "shortName": "Share-Based Compensation - Summary of Stock Option Activity (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": "INF", "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross", "reportCount": 1, "unique": true, "unitRef": "U_xbrlishares", "xsiNil": "false" } }, "R39": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210701_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AllocatedShareBasedCompensationExpense", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100390 - Disclosure - Share-Based Compensation - Summary of Share-based Compensation Expense (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfShareBasedCompensationExpenseDetails", "shortName": "Share-Based Compensation - Summary of Share-based Compensation Expense (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "us-gaap:ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock", "ix:continuation", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210701_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AllocatedShareBasedCompensationExpense", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R4": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20191231", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:StockholdersEquity", "reportCount": 1, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "100030 - Statement - CONDENSED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT)", "role": "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT", "shortName": "CONDENSED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20200101_20200331", "decimals": "-3", "lang": null, "name": "nktx:StockIssuedDuringPeriodValueVestingOfSharesOfCommonStockSubjectToRepurchase", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R40": { "firstAnchor": { "ancestors": [ "p", "us-gaap:IncomeTaxDisclosureTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210701_20210930", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:IncomeTaxExpenseBenefit", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100400 - Disclosure - Income Taxes - Additional Information (Details)", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureIncomeTaxesAdditionalInformationDetails", "shortName": "Income Taxes - Additional Information (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "p", "us-gaap:IncomeTaxDisclosureTextBlock", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210701_20210930", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:IncomeTaxExpenseBenefit", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R5": { "firstAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ProfitLoss", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "100040 - Statement - CONDENSED STATEMENT OF CASH FLOWS (Unaudited)", "role": "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited", "shortName": "CONDENSED STATEMENT OF CASH FLOWS (Unaudited)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "p", "td", "tr", "table", "div", "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ProfitLoss", "reportCount": 1, "unique": true, "unitRef": "U_iso4217USD", "xsiNil": "false" } }, "R6": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100050 - Disclosure - Organization and Description of Business", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusiness", "shortName": "Organization and Description of Business", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R7": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100060 - Disclosure - Basis of Presentation and Significant Accounting Policies", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicies", "shortName": "Basis of Presentation and Significant Accounting Policies", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R8": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100070 - Disclosure - Net Loss Per Share", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShare", "shortName": "Net Loss Per Share", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EarningsPerShareTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R9": { "firstAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "100080 - Disclosure - Fair Value of Financial Instruments", "role": "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstruments", "shortName": "Fair Value of Financial Instruments", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "body", "html" ], "baseRef": "nktx-10q_20210930.htm", "contextRef": "C_0001787400_20210101_20210930", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } } }, "segmentCount": 39, "tag": { "dei_AmendmentFlag": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.", "label": "Amendment Flag", "terseLabel": "Amendment Flag" } } }, "localname": "AmendmentFlag", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_CityAreaCode": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Area code of city", "label": "City Area Code", "terseLabel": "City Area Code" } } }, "localname": "CityAreaCode", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_CoverAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Cover page.", "label": "Cover [Abstract]" } } }, "localname": "CoverAbstract", "nsuri": "http://xbrl.sec.gov/dei/2021", "xbrltype": "stringItemType" }, "dei_CurrentFiscalYearEndDate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "End date of current fiscal year in the format --MM-DD.", "label": "Current Fiscal Year End Date", "terseLabel": "Current Fiscal Year End Date" } } }, "localname": "CurrentFiscalYearEndDate", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "gMonthDayItemType" }, "dei_DocumentFiscalPeriodFocus": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Fiscal period values are FY, Q1, Q2, and Q3. 1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.", "label": "Document Fiscal Period Focus", "terseLabel": "Document Fiscal Period Focus" } } }, "localname": "DocumentFiscalPeriodFocus", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "fiscalPeriodItemType" }, "dei_DocumentFiscalYearFocus": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.", "label": "Document Fiscal Year Focus", "terseLabel": "Document Fiscal Year Focus" } } }, "localname": "DocumentFiscalYearFocus", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "gYearItemType" }, "dei_DocumentPeriodEndDate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.", "label": "Document Period End Date", "terseLabel": "Document Period End Date" } } }, "localname": "DocumentPeriodEndDate", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "dateItemType" }, "dei_DocumentQuarterlyReport": { "auth_ref": [ "r484" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true only for a form used as an quarterly report.", "label": "Document Quarterly Report", "terseLabel": "Document Quarterly Report" } } }, "localname": "DocumentQuarterlyReport", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_DocumentTransitionReport": { "auth_ref": [ "r485" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true only for a form used as a transition report.", "label": "Document Transition Report", "terseLabel": "Document Transition Report" } } }, "localname": "DocumentTransitionReport", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_DocumentType": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.", "label": "Document Type", "terseLabel": "Document Type" } } }, "localname": "DocumentType", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "submissionTypeItemType" }, "dei_EntityAddressAddressLine1": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Address Line 1 such as Attn, Building Name, Street Name", "label": "Entity Address Address Line1", "terseLabel": "Entity Address, Address Line One" } } }, "localname": "EntityAddressAddressLine1", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressAddressLine2": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Address Line 2 such as Street or Suite number", "label": "Entity Address Address Line2", "terseLabel": "Entity Address, Address Line Two" } } }, "localname": "EntityAddressAddressLine2", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressCityOrTown": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Name of the City or Town", "label": "Entity Address City Or Town", "terseLabel": "Entity Address, City or Town" } } }, "localname": "EntityAddressCityOrTown", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressPostalZipCode": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Code for the postal or zip code", "label": "Entity Address Postal Zip Code", "terseLabel": "Entity Address, Postal Zip Code" } } }, "localname": "EntityAddressPostalZipCode", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressStateOrProvince": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Name of the state or province.", "label": "Entity Address State Or Province", "terseLabel": "Entity Address, State or Province" } } }, "localname": "EntityAddressStateOrProvince", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "stateOrProvinceItemType" }, "dei_EntityCentralIndexKey": { "auth_ref": [ "r486" ], "lang": { "en-us": { "role": { "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.", "label": "Entity Central Index Key", "terseLabel": "Entity Central Index Key" } } }, "localname": "EntityCentralIndexKey", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "centralIndexKeyItemType" }, "dei_EntityCommonStockSharesOutstanding": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.", "label": "Entity Common Stock Shares Outstanding", "terseLabel": "Entity Common Stock, Shares Outstanding" } } }, "localname": "EntityCommonStockSharesOutstanding", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "sharesItemType" }, "dei_EntityCurrentReportingStatus": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.", "label": "Entity Current Reporting Status", "terseLabel": "Entity Current Reporting Status" } } }, "localname": "EntityCurrentReportingStatus", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "yesNoItemType" }, "dei_EntityEmergingGrowthCompany": { "auth_ref": [ "r486" ], "lang": { "en-us": { "role": { "documentation": "Indicate if registrant meets the emerging growth company criteria.", "label": "Entity Emerging Growth Company", "terseLabel": "Entity Emerging Growth Company" } } }, "localname": "EntityEmergingGrowthCompany", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_EntityExTransitionPeriod": { "auth_ref": [ "r495" ], "lang": { "en-us": { "role": { "documentation": "Indicate if an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards.", "label": "Entity Ex Transition Period", "terseLabel": "Entity Ex Transition Period" } } }, "localname": "EntityExTransitionPeriod", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_EntityFileNumber": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.", "label": "Entity File Number", "terseLabel": "Entity File Number" } } }, "localname": "EntityFileNumber", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "fileNumberItemType" }, "dei_EntityFilerCategory": { "auth_ref": [ "r486" ], "lang": { "en-us": { "role": { "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.", "label": "Entity Filer Category", "terseLabel": "Entity Filer Category" } } }, "localname": "EntityFilerCategory", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "filerCategoryItemType" }, "dei_EntityIncorporationStateCountryCode": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Two-character EDGAR code representing the state or country of incorporation.", "label": "Entity Incorporation State Country Code", "terseLabel": "Entity Incorporation, State or Country Code" } } }, "localname": "EntityIncorporationStateCountryCode", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "edgarStateCountryItemType" }, "dei_EntityInteractiveDataCurrent": { "auth_ref": [ "r494" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).", "label": "Entity Interactive Data Current", "terseLabel": "Entity Interactive Data Current" } } }, "localname": "EntityInteractiveDataCurrent", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "yesNoItemType" }, "dei_EntityRegistrantName": { "auth_ref": [ "r486" ], "lang": { "en-us": { "role": { "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.", "label": "Entity Registrant Name", "terseLabel": "Entity Registrant Name" } } }, "localname": "EntityRegistrantName", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityShellCompany": { "auth_ref": [ "r486" ], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.", "label": "Entity Shell Company", "terseLabel": "Entity Shell Company" } } }, "localname": "EntityShellCompany", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_EntitySmallBusiness": { "auth_ref": [ "r486" ], "lang": { "en-us": { "role": { "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).", "label": "Entity Small Business", "terseLabel": "Entity Small Business" } } }, "localname": "EntitySmallBusiness", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_EntityTaxIdentificationNumber": { "auth_ref": [ "r486" ], "lang": { "en-us": { "role": { "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.", "label": "Entity Tax Identification Number", "terseLabel": "Entity Tax Identification Number" } } }, "localname": "EntityTaxIdentificationNumber", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "employerIdItemType" }, "dei_LocalPhoneNumber": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Local phone number for entity.", "label": "Local Phone Number", "terseLabel": "Local Phone Number" } } }, "localname": "LocalPhoneNumber", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_Security12bTitle": { "auth_ref": [ "r482" ], "lang": { "en-us": { "role": { "documentation": "Title of a 12(b) registered security.", "label": "Security12b Title", "terseLabel": "Title of 12(b) Security" } } }, "localname": "Security12bTitle", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "securityTitleItemType" }, "dei_SecurityExchangeName": { "auth_ref": [ "r483" ], "lang": { "en-us": { "role": { "documentation": "Name of the Exchange on which a security is registered.", "label": "Security Exchange Name", "terseLabel": "Security Exchange Name" } } }, "localname": "SecurityExchangeName", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "edgarExchangeCodeItemType" }, "dei_TradingSymbol": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Trading symbol of an instrument as listed on an exchange.", "label": "Trading Symbol", "terseLabel": "Trading Symbol" } } }, "localname": "TradingSymbol", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DocumentDocumentAndEntityInformation" ], "xbrltype": "tradingSymbolItemType" }, "nktx_AccountingPoliciesLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Accounting policies.", "label": "Accounting Policies [Line Items]", "terseLabel": "Accounting Policies [Line Items]" } } }, "localname": "AccountingPoliciesLineItems", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "nktx_AccountingPoliciesTable": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Accounting policies.", "label": "Accounting Policies [Table]", "terseLabel": "Accounting Policies [Table]" } } }, "localname": "AccountingPoliciesTable", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "nktx_AccruedPropertyAndEquipmentLiabilitiesCurrent": { "auth_ref": [], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfAccruedOtherCurrentLiabilitiesDetails": { "order": 10030.0, "parentTag": "us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Accrued property and equipment liabilities current.", "label": "Accrued Property And Equipment Liabilities Current", "terseLabel": "Accrued property and equipment" } } }, "localname": "AccruedPropertyAndEquipmentLiabilitiesCurrent", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfAccruedOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "nktx_AccruedResearchAndDevelopmentCostsCurrent": { "auth_ref": [], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfAccruedOtherCurrentLiabilitiesDetails": { "order": 10020.0, "parentTag": "us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Accrued research and development costs current.", "label": "Accrued Research And Development Costs Current", "terseLabel": "Accrued research and development costs" } } }, "localname": "AccruedResearchAndDevelopmentCostsCurrent", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfAccruedOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "nktx_AgreementWithFinancialInstitutionMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Agreement with financial institution.", "label": "Agreement With Financial Institution [Member]", "terseLabel": "Agreement with Financial Institution" } } }, "localname": "AgreementWithFinancialInstitutionMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "nktx_AmountsOwedUnderAgreement": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amounts owed under the agreement.", "label": "Amounts Owed Under Agreement", "terseLabel": "Amounts owed under the agreement." } } }, "localname": "AmountsOwedUnderAgreement", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "nktx_AtMarketProgramMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "At Market Program.", "label": "At Market Program [Member]", "terseLabel": "ATM Program" } } }, "localname": "AtMarketProgramMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "nktx_CashCashEquivalentsRestrictedCashAndShortTermInvestments": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Cash cash equivalents restricted cash and short term investments.", "label": "Cash Cash Equivalents Restricted Cash And Short Term Investments", "terseLabel": "Cash, cash equivalents restricted cash and short-term investments" } } }, "localname": "CashCashEquivalentsRestrictedCashAndShortTermInvestments", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "nktx_CashReceivedForTenantImprovementAllowancesToBeRepaid": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Cash received for tenant improvement allowances to be repaid.", "label": "Cash Received For Tenant Improvement Allowances To Be Repaid", "terseLabel": "Cash received for tenant improvement allowances to be repaid" } } }, "localname": "CashReceivedForTenantImprovementAllowancesToBeRepaid", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "nktx_CollaborationAgreementAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Collaboration agreement.", "label": "Collaboration Agreement [Abstract]" } } }, "localname": "CollaborationAgreementAbstract", "nsuri": "http://nkartatx.com/20210930", "xbrltype": "stringItemType" }, "nktx_CommonStockOptionsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Common stock options.", "label": "Common Stock Options [Member]", "terseLabel": "Common Stock Options" } } }, "localname": "CommonStockOptionsMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareSummarizesOutstandingPotentiallyDilutiveSecuritiesExcludedInCalculationOfDilutedNetLossPerShareDetails" ], "xbrltype": "domainItemType" }, "nktx_ComputersAndSoftwareMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Computers and software.", "label": "Computers And Software [Member]", "terseLabel": "Computers and Software" } } }, "localname": "ComputersAndSoftwareMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails" ], "xbrltype": "domainItemType" }, "nktx_CorporateOfficeAndLaboratorySpaceMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Corporate office and laboratory space.", "label": "Corporate Office And Laboratory Space [Member]", "terseLabel": "Corporate Office and Laboratory Space" } } }, "localname": "CorporateOfficeAndLaboratorySpaceMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "nktx_CurrentCorporateOfficesAndLaboratorySpaceMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Current corporate offices and laboratory space.", "label": "Current Corporate Offices And Laboratory Space [Member]", "terseLabel": "Current Corporate Offices and Laboratory Space" } } }, "localname": "CurrentCorporateOfficesAndLaboratorySpaceMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "nktx_DevelopmentAndRegulatoryApprovalMilestonesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Development and regulatory approval milestones.", "label": "Development And Regulatory Approval Milestones [Member]", "terseLabel": "Development and Regulatory Approval Milestones" } } }, "localname": "DevelopmentAndRegulatoryApprovalMilestonesMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "nktx_ExpectedBaseRentOverLeaseTerm": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Expected base rent over the lease term.", "label": "Expected Base Rent Over Lease Term", "terseLabel": "Expects to pay base rent over the lease term" } } }, "localname": "ExpectedBaseRentOverLeaseTerm", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "nktx_Impairments": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Impairments.", "label": "Impairments", "terseLabel": "Impairments" } } }, "localname": "Impairments", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "nktx_IncreaseDecreaseInAccountsPayableAndAccruedAndOtherLiabilities": { "auth_ref": [], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10220.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Increase (Decrease) in accounts payable and accrued and other liabilities.", "label": "Increase Decrease In Accounts Payable And Accrued And Other Liabilities", "terseLabel": "Accounts payable and accrued and other liabilities" } } }, "localname": "IncreaseDecreaseInAccountsPayableAndAccruedAndOtherLiabilities", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "nktx_IncreaseInShareLimitAsPercentageOfOutstandingSharesOfCommonStockOnLastTradingDayInPriorYear": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Increase in share limit as percentage of outstanding shares of common stock on last trading day in prior year.", "label": "Increase In Share Limit As Percentage Of Outstanding Shares Of Common Stock On Last Trading Day In Prior Year", "terseLabel": "Increase in share limit as percentage of outstanding shares of common stock on last trading day in prior year" } } }, "localname": "IncreaseInShareLimitAsPercentageOfOutstandingSharesOfCommonStockOnLastTradingDayInPriorYear", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "nktx_InitialLeaseAgreementMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Initial lease agreement.", "label": "Initial Lease Agreement [Member]", "terseLabel": "Initial Lease Agreement" } } }, "localname": "InitialLeaseAgreementMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "nktx_LeaseExpirationMonthAndYear": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Lease expiration month and year.", "label": "Lease Expiration Month And Year", "terseLabel": "Lease expiration month and year" } } }, "localname": "LeaseExpirationMonthAndYear", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "gYearMonthItemType" }, "nktx_LeaseExpirationYear": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Lease expiration year.", "label": "Lease Expiration Year", "terseLabel": "Lease expiration year" } } }, "localname": "LeaseExpirationYear", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "gYearItemType" }, "nktx_LesseeOperatingLeaseLiabilityPaymentsDueYearFiveAndThereafter": { "auth_ref": [], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": { "order": 10080.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Lessee operating lease liability payments due year five and thereafter.", "label": "Lessee Operating Lease Liability Payments Due Year Five And Thereafter", "terseLabel": "2026 and thereafter" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFiveAndThereafter", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "nktx_LetterOfCreditNoticePeriodByFinancialInstitutionBeforeAnnualExpirationDate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Letter of credit notice period by financial institution before annual expiration date.", "label": "Letter Of Credit Notice Period By Financial Institution Before Annual Expiration Date", "terseLabel": "Letter of credit notice period by financial institution before annual expiration date" } } }, "localname": "LetterOfCreditNoticePeriodByFinancialInstitutionBeforeAnnualExpirationDate", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "nktx_MaximumMonthlyBaseRentAfterIncreaseOnAnnualBasis": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Maximum monthly base rent after increase on annual basis.", "label": "Maximum Monthly Base Rent After Increase On Annual Basis", "terseLabel": "Maximum monthly base rent after increase on annual basis" } } }, "localname": "MaximumMonthlyBaseRentAfterIncreaseOnAnnualBasis", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "nktx_MonthlyBaseRent": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Monthly base rent.", "label": "Monthly Base Rent", "terseLabel": "Monthly base rent" } } }, "localname": "MonthlyBaseRent", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "nktx_NKCellProductsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "NK cell products.", "label": "N K Cell Products [Member]", "terseLabel": "NK Cell Products" } } }, "localname": "NKCellProductsMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "nktx_NumberOfNonExclusiveRightsToGeneEditingTargets": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of non-exclusive rights to gene editing targets.", "label": "Number Of Non Exclusive Rights To Gene Editing Targets", "terseLabel": "Number of non-exclusive rights to gene editing targets" } } }, "localname": "NumberOfNonExclusiveRightsToGeneEditingTargets", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "integerItemType" }, "nktx_PaymentsMadeUnderCollaborativeArrangement": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Payments made under collaborative arrangement.", "label": "Payments Made Under Collaborative Arrangement", "terseLabel": "Amount paid under the agreement" } } }, "localname": "PaymentsMadeUnderCollaborativeArrangement", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "nktx_PaymentsOfDeferredOfferingCosts": { "auth_ref": [], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10100.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Payments of deferred offering costs.", "label": "Payments Of Deferred Offering Costs", "negatedLabel": "Payments of deferred offering costs" } } }, "localname": "PaymentsOfDeferredOfferingCosts", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "nktx_PotentialFuturePaymentsBasedOnAchievementOfMilestones": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Potential future payments based on achievement of milestones.", "label": "Potential Future Payments Based On Achievement Of Milestones", "terseLabel": "Potential future payments" } } }, "localname": "PotentialFuturePaymentsBasedOnAchievementOfMilestones", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "nktx_ProceedsFromEarlyExerciseOfStockOptions": { "auth_ref": [], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10090.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Proceeds from early exercise of stock options.", "label": "Proceeds From Early Exercise Of Stock Options", "terseLabel": "Proceeds from early exercise of stock options" } } }, "localname": "ProceedsFromEarlyExerciseOfStockOptions", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "nktx_ProceedsFromIssuanceOfConvertiblePreferredStockNetOfIssuanceCosts": { "auth_ref": [], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10060.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Proceeds from issuance of convertible preferred stock, net of issuance costs.", "label": "Proceeds From Issuance Of Convertible Preferred Stock Net Of Issuance Costs", "terseLabel": "Proceeds from issuance of convertible preferred stock, net of issuance costs" } } }, "localname": "ProceedsFromIssuanceOfConvertiblePreferredStockNetOfIssuanceCosts", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "nktx_ProceedsFromSaleOfOffering": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Proceeds from sale of offering.", "label": "Proceeds From Sale Of Offering", "terseLabel": "Proceeds from sale of offering" } } }, "localname": "ProceedsFromSaleOfOffering", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "nktx_ReceivableUnderResearchCostSharingProvision": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Receivable under research cost sharing provision.", "label": "Receivable Under Research Cost Sharing Provision", "terseLabel": "Receivable under research cost sharing provision" } } }, "localname": "ReceivableUnderResearchCostSharingProvision", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "nktx_ResearchCollaborationAgreementMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Research collaboration agreement.", "label": "Research Collaboration Agreement [Member]", "terseLabel": "Research Collaboration Agreement" } } }, "localname": "ResearchCollaborationAgreementMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "nktx_ResearchEquipmentMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Research equipment.", "label": "Research Equipment [Member]", "terseLabel": "Research Equipment" } } }, "localname": "ResearchEquipmentMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails" ], "xbrltype": "domainItemType" }, "nktx_ScheduleOfPrepaidExpensesAndOtherCurrentAssetsTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Schedule of prepaid expenses and other current assets.", "label": "Schedule Of Prepaid Expenses And Other Current Assets Table [Text Block]", "terseLabel": "Schedule of Prepaid Expenses and Other Current Assets" } } }, "localname": "ScheduleOfPrepaidExpensesAndOtherCurrentAssetsTableTextBlock", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsTables" ], "xbrltype": "textBlockItemType" }, "nktx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOfferingPeriod": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Share based compensation arrangement by share based payment award offering period.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Offering Period", "terseLabel": "Offering period" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOfferingPeriod", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "nktx_StockIssuedDuringPeriodSharesVestingOfSharesOfCommonStockSubjectToRepurchase": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Stock issued during period shares vesting of shares of common stock subject to repurchase.", "label": "Stock Issued During Period Shares Vesting Of Shares Of Common Stock Subject To Repurchase", "terseLabel": "Vesting of shares of common stock subject to repurchase, Shares" } } }, "localname": "StockIssuedDuringPeriodSharesVestingOfSharesOfCommonStockSubjectToRepurchase", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "sharesItemType" }, "nktx_StockIssuedDuringPeriodValueVestingOfSharesOfCommonStockSubjectToRepurchase": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Stock issued during period value vesting of shares of common stock subject to repurchase.", "label": "Stock Issued During Period Value Vesting Of Shares Of Common Stock Subject To Repurchase", "terseLabel": "Vesting of shares of common stock subject to repurchase" } } }, "localname": "StockIssuedDuringPeriodValueVestingOfSharesOfCommonStockSubjectToRepurchase", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "monetaryItemType" }, "nktx_TemporaryEquityReclassificationOfPreferredStockPurchaseRightLiabilityToEquityUponIssuanceOfConvertiblePreferredStock": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Temporary equity reclassification of preferred stock purchase right liability to equity upon issuance of convertible preferred stock.", "label": "Temporary Equity Reclassification Of Preferred Stock Purchase Right Liability To Equity Upon Issuance Of Convertible Preferred Stock", "terseLabel": "Temporary equity, series B preferred stock purchase right (liability) upon issuance of Series B convertible preferred stock" } } }, "localname": "TemporaryEquityReclassificationOfPreferredStockPurchaseRightLiabilityToEquityUponIssuanceOfConvertiblePreferredStock", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "monetaryItemType" }, "nktx_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Temporary equity stock issued during period shares new issues.", "label": "Temporary Equity Stock Issued During Period Shares New Issues", "terseLabel": "Temporary equity, Issuance of Series B convertible preferred stock, net of issuance costs, Shares" } } }, "localname": "TemporaryEquityStockIssuedDuringPeriodSharesNewIssues", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "sharesItemType" }, "nktx_TenantImprovementsYetToReceiveFromLessor": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Tenant improvements yet to receive from lessor.", "label": "Tenant Improvements Yet To Receive From Lessor", "terseLabel": "Tenant improvement allowances yet to receive" } } }, "localname": "TenantImprovementsYetToReceiveFromLessor", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "nktx_ThirdAmendmentMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Third amendment.", "label": "Third Amendment [Member]", "terseLabel": "Third amendment" } } }, "localname": "ThirdAmendmentMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "nktx_TwoThousandTwentyPerformanceIncentivePlanMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Two thousand twenty performance incentive plan.", "label": "Two Thousand Twenty Performance Incentive Plan [Member]", "terseLabel": "2020 Plan" } } }, "localname": "TwoThousandTwentyPerformanceIncentivePlanMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "nktx_UnusualOrInfrequentItemsDisclosurePolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Unusual or infrequent items disclosure.", "label": "Unusual Or Infrequent Items Disclosure Policy [Text Block]", "terseLabel": "COVID-19 Pandemic" } } }, "localname": "UnusualOrInfrequentItemsDisclosurePolicyTextBlock", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "nktx_UnvestedCommonStockUponEarlyExerciseOfCommonStockOptionsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Unvested common stock upon early exercise of common stock options.", "label": "Unvested Common Stock Upon Early Exercise Of Common Stock Options [Member]", "terseLabel": "Unvested Common Stock Upon Early Exercise of Common Stock Options" } } }, "localname": "UnvestedCommonStockUponEarlyExerciseOfCommonStockOptionsMember", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareSummarizesOutstandingPotentiallyDilutiveSecuritiesExcludedInCalculationOfDilutedNetLossPerShareDetails" ], "xbrltype": "domainItemType" }, "nktx_WeightedAverageNumberOfSharesUnvestedCommonStockIssuedUponEarlyExerciseOfCommonStockOptions": { "auth_ref": [], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareComputationOfBasicAndDilutedNetLossPerShareDetails": { "order": 10020.0, "parentTag": "us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Weighted average number of shares unvested common stock issued upon early exercise of common stock options.", "label": "Weighted Average Number Of Shares Unvested Common Stock Issued Upon Early Exercise Of Common Stock Options", "negatedLabel": "Less: weighted average unvested common stock issued upon early exercise of common stock options" } } }, "localname": "WeightedAverageNumberOfSharesUnvestedCommonStockIssuedUponEarlyExerciseOfCommonStockOptions", "nsuri": "http://nkartatx.com/20210930", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareComputationOfBasicAndDilutedNetLossPerShareDetails" ], "xbrltype": "sharesItemType" }, "srt_MaximumMember": { "auth_ref": [ "r221", "r232", "r256", "r257", "r392", "r393", "r394", "r395", "r396", "r397", "r416", "r446", "r448", "r479", "r480" ], "lang": { "en-us": { "role": { "label": "Maximum [Member]", "terseLabel": "Maximum" } } }, "localname": "MaximumMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "srt_MinimumMember": { "auth_ref": [ "r221", "r232", "r256", "r257", "r392", "r393", "r394", "r395", "r396", "r397", "r416", "r446", "r448", "r479", "r480" ], "lang": { "en-us": { "role": { "label": "Minimum [Member]", "terseLabel": "Minimum [Member]" } } }, "localname": "MinimumMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "srt_ProductOrServiceAxis": { "auth_ref": [ "r147", "r245", "r246", "r418", "r445", "r447" ], "lang": { "en-us": { "role": { "label": "Product Or Service [Axis]", "terseLabel": "Product and Service" } } }, "localname": "ProductOrServiceAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "srt_ProductsAndServicesDomain": { "auth_ref": [ "r147", "r245", "r246", "r418", "r445", "r447" ], "lang": { "en-us": { "role": { "label": "Products And Services [Domain]", "terseLabel": "Product and Service" } } }, "localname": "ProductsAndServicesDomain", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "srt_RangeAxis": { "auth_ref": [ "r221", "r232", "r247", "r256", "r257", "r392", "r393", "r394", "r395", "r396", "r397", "r416", "r446", "r448", "r479", "r480" ], "lang": { "en-us": { "role": { "label": "Range [Axis]", "terseLabel": "Statistical Measurement" } } }, "localname": "RangeAxis", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "srt_RangeMember": { "auth_ref": [ "r221", "r232", "r247", "r256", "r257", "r392", "r393", "r394", "r395", "r396", "r397", "r416", "r446", "r448", "r479", "r480" ], "lang": { "en-us": { "role": { "label": "Range [Member]", "terseLabel": "Statistical Measurement" } } }, "localname": "RangeMember", "nsuri": "http://fasb.org/srt/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountingPoliciesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Accounting Policies [Abstract]" } } }, "localname": "AccountingPoliciesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_AccountingStandardsUpdate201912Member": { "auth_ref": [ "r298", "r299", "r300", "r301" ], "lang": { "en-us": { "role": { "documentation": "Accounting Standards Update 2019-12 Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes.", "label": "Accounting Standards Update201912 [Member]", "terseLabel": "ASU 2019-12" } } }, "localname": "AccountingStandardsUpdate201912Member", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent": { "auth_ref": [ "r36" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfAccruedOtherCurrentLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.", "label": "Accounts Payable And Accrued Liabilities Current", "totalLabel": "Total accrued and other liabilities" } } }, "localname": "AccountsPayableAndAccruedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfAccruedOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent": { "auth_ref": [], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfAccruedOtherCurrentLiabilitiesDetails": { "order": 10040.0, "parentTag": "us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liabilities incurred to vendors for goods and services received, and accrued liabilities classified as other, payable within one year or the normal operating cycle, if longer.", "label": "Accounts Payable And Other Accrued Liabilities Current", "terseLabel": "Other accrued and current liabilities" } } }, "localname": "AccountsPayableAndOtherAccruedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfAccruedOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccountsPayableCurrent": { "auth_ref": [ "r34", "r384" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10120.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).", "label": "Accounts Payable Current", "terseLabel": "Accounts payable" } } }, "localname": "AccountsPayableCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments": { "auth_ref": [ "r82" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10170.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.", "label": "Accretion Amortization Of Discounts And Premiums Investments", "negatedLabel": "Accretion and amortization of premiums and discounts on investments, net" } } }, "localname": "AccretionAmortizationOfDiscountsAndPremiumsInvestments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccruedLiabilitiesCurrent": { "auth_ref": [ "r39" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10140.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).", "label": "Accrued Liabilities Current", "terseLabel": "Accrued and other current liabilities" } } }, "localname": "AccruedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment": { "auth_ref": [ "r32", "r190" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails": { "order": 10020.0, "parentTag": "us-gaap_PropertyPlantAndEquipmentNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.", "label": "Accumulated Depreciation Depletion And Amortization Property Plant And Equipment", "negatedLabel": "Less accumulated depreciation and amortization" } } }, "localname": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": { "auth_ref": [ "r24", "r53", "r54", "r55", "r437", "r456", "r460" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10070.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.", "label": "Accumulated Other Comprehensive Income Loss Net Of Tax", "terseLabel": "Accumulated other comprehensive income (loss)" } } }, "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedOtherComprehensiveIncomeMember": { "auth_ref": [ "r52", "r55", "r62", "r63", "r64", "r95", "r96", "r97", "r321", "r451", "r452", "r500" ], "lang": { "en-us": { "role": { "documentation": "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.", "label": "Accumulated Other Comprehensive Income [Member]", "terseLabel": "Accumulated Other Comprehensive Income (Loss)" } } }, "localname": "AccumulatedOtherComprehensiveIncomeMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "domainItemType" }, "us-gaap_AdditionalPaidInCapitalCommonStock": { "auth_ref": [ "r22" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10060.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.", "label": "Additional Paid In Capital Common Stock", "terseLabel": "Additional paid-in capital" } } }, "localname": "AdditionalPaidInCapitalCommonStock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdditionalPaidInCapitalMember": { "auth_ref": [ "r95", "r96", "r97", "r283", "r284", "r285", "r337" ], "lang": { "en-us": { "role": { "documentation": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders.", "label": "Additional Paid In Capital [Member]", "terseLabel": "Additional Paid-In Capital" } } }, "localname": "AdditionalPaidInCapitalMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "domainItemType" }, "us-gaap_AdjustmentsForNewAccountingPronouncementsAxis": { "auth_ref": [ "r0", "r1", "r2", "r3", "r4", "r99", "r100", "r101", "r102", "r111", "r149", "r150", "r169", "r170", "r171", "r172", "r174", "r175", "r209", "r279", "r280", "r281", "r282", "r283", "r284", "r285", "r286", "r298", "r299", "r300", "r301", "r329", "r330", "r331", "r332", "r333", "r334", "r335", "r336", "r337", "r338", "r339", "r350", "r351", "r353", "r354", "r355", "r356", "r357", "r358", "r381", "r419", "r420", "r421", "r449", "r450", "r451", "r452", "r453", "r454", "r455", "r456", "r457", "r458", "r459", "r460", "r496", "r497", "r498", "r499", "r500" ], "lang": { "en-us": { "role": { "documentation": "Information by amendment to accounting standards.", "label": "Adjustments For New Accounting Pronouncements [Axis]", "terseLabel": "Accounting Standards Update" } } }, "localname": "AdjustmentsForNewAccountingPronouncementsAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": { "auth_ref": [ "r258", "r260", "r288", "r289" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.", "label": "Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value", "terseLabel": "Share-based compensation expense" } } }, "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract]", "terseLabel": "Adjustments to reconcile net loss to net cash used in operating activities:" } } }, "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_AllocatedShareBasedCompensationExpense": { "auth_ref": [ "r260", "r275", "r287" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.", "label": "Allocated Share Based Compensation Expense", "terseLabel": "Share-based compensation expense" } } }, "localname": "AllocatedShareBasedCompensationExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfShareBasedCompensationExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": { "auth_ref": [ "r121" ], "lang": { "en-us": { "role": { "documentation": "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.", "label": "Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount", "terseLabel": "Antidilutive securities excluded from computation of earnings per share" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareSummarizesOutstandingPotentiallyDilutiveSecuritiesExcludedInCalculationOfDilutedNetLossPerShareDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis": { "auth_ref": [ "r121" ], "lang": { "en-us": { "role": { "documentation": "Information by type of antidilutive security.", "label": "Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis]", "terseLabel": "Antidilutive Securities" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareSummarizesOutstandingPotentiallyDilutiveSecuritiesExcludedInCalculationOfDilutedNetLossPerShareDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]", "terseLabel": "Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]" } } }, "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareSummarizesOutstandingPotentiallyDilutiveSecuritiesExcludedInCalculationOfDilutedNetLossPerShareDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AntidilutiveSecuritiesNameDomain": { "auth_ref": [ "r121" ], "lang": { "en-us": { "role": { "documentation": "Incremental common shares attributable to securities that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts for the period presented.", "label": "Antidilutive Securities Name [Domain]", "terseLabel": "Antidilutive Securities, Name" } } }, "localname": "AntidilutiveSecuritiesNameDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareSummarizesOutstandingPotentiallyDilutiveSecuritiesExcludedInCalculationOfDilutedNetLossPerShareDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ArrangementsAndNonarrangementTransactionsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations.", "label": "Arrangements And Nonarrangement Transactions [Member]", "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative" } } }, "localname": "ArrangementsAndNonarrangementTransactionsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_Assets": { "auth_ref": [ "r90", "r139", "r141", "r145", "r165", "r210", "r211", "r212", "r213", "r214", "r215", "r216", "r217", "r218", "r219", "r220", "r316", "r322", "r349", "r382", "r384", "r423", "r435" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "Assets", "totalLabel": "Total assets" } } }, "localname": "Assets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Assets [Abstract]", "terseLabel": "Assets" } } }, "localname": "AssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsCurrent": { "auth_ref": [ "r10", "r12", "r49", "r90", "r165", "r210", "r211", "r212", "r213", "r214", "r215", "r216", "r217", "r218", "r219", "r220", "r316", "r322", "r349", "r382", "r384" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10150.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "Assets Current", "totalLabel": "Total current assets" } } }, "localname": "AssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsCurrentAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Assets Current [Abstract]", "terseLabel": "Current assets" } } }, "localname": "AssetsCurrentAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsFairValueDisclosure": { "auth_ref": [ "r340" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "Assets Fair Value Disclosure", "totalLabel": "Total" } } }, "localname": "AssetsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsFairValueDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Assets Fair Value Disclosure [Abstract]", "terseLabel": "Assets:" } } }, "localname": "AssetsFairValueDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": { "auth_ref": [ "r156" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails": { "order": 10020.0, "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax", "terseLabel": "Available for sale securities, Unrealized Gains" } } }, "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax": { "auth_ref": [ "r157" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails": { "order": 10010.0, "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax", "negatedLabel": "Available for sale securities, Unrealized Losses" } } }, "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis": { "auth_ref": [ "r154", "r181" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Available For Sale Debt Securities Amortized Cost Basis", "totalLabel": "Available for sale securities, Amortized Cost" } } }, "localname": "AvailableForSaleDebtSecuritiesAmortizedCostBasis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtSecurities": { "auth_ref": [ "r152", "r155", "r181", "r427" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails": { "order": 10030.0, "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Available For Sale Securities Debt Securities", "terseLabel": "Available for sale securities,Estimated Fair Value" } } }, "localname": "AvailableForSaleSecuritiesDebtSecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent": { "auth_ref": [ "r153", "r181" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10210.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.", "label": "Available For Sale Securities Debt Securities Current", "terseLabel": "Short-term investments, available-for-sale" } } }, "localname": "AvailableForSaleSecuritiesDebtSecuritiesCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_AwardTypeAxis": { "auth_ref": [ "r261", "r277" ], "lang": { "en-us": { "role": { "documentation": "Information by type of award under share-based payment arrangement.", "label": "Award Type [Axis]", "terseLabel": "Award Type" } } }, "localname": "AwardTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BalanceSheetRelatedDisclosuresAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Balance Sheet Related Disclosures [Abstract]" } } }, "localname": "BalanceSheetRelatedDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).", "label": "Basis Of Accounting Policy Policy [Text Block]", "terseLabel": "Basis of Presentation" } } }, "localname": "BasisOfAccountingPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CashAndCashEquivalentsAtCarryingValue": { "auth_ref": [ "r7", "r30", "r83" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10200.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 }, "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10010.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.", "label": "Cash And Cash Equivalents At Carrying Value", "terseLabel": "Cash and cash equivalents" } } }, "localname": "CashAndCashEquivalentsAtCarryingValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by type of cash and cash equivalent balance.", "label": "Cash And Cash Equivalents [Axis]", "terseLabel": "Cash and Cash Equivalents" } } }, "localname": "CashAndCashEquivalentsAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CashAndCashEquivalentsFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash And Cash Equivalents Fair Value Disclosure", "terseLabel": "Investments" } } }, "localname": "CashAndCashEquivalentsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "auth_ref": [ "r78", "r83", "r87" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents", "totalLabel": "Total cash, cash equivalents and restricted cash" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]", "terseLabel": "Reconciliation of cash, cash equivalents and restricted cash to the balance sheet:" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations": { "auth_ref": [ "r78", "r83", "r87" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including, but not limited to, disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations", "periodEndLabel": "Cash, cash equivalents, and restricted cash end of period", "periodStartLabel": "Cash, cash equivalents, and restricted cash beginning of period" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": { "auth_ref": [ "r78", "r359" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect", "totalLabel": "Net increase in cash and cash equivalents" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdopted": { "auth_ref": [ "r0", "r1", "r95", "r96", "r98", "r149", "r150", "r166", "r167", "r168", "r169", "r170", "r209", "r279", "r280", "r281", "r298", "r327", "r329", "r330", "r350", "r352", "r353", "r354", "r357", "r358", "r367", "r381", "r419", "r420", "r449", "r450", "r496" ], "lang": { "en-us": { "role": { "documentation": "Indicates (true false) whether accounting standards update was adopted.", "label": "Change In Accounting Principle Accounting Standards Update Adopted", "terseLabel": "Change in Accounting Principle, Accounting Standards Update, Adopted [true false]" } } }, "localname": "ChangeInAccountingPrincipleAccountingStandardsUpdateAdopted", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicesAdditionalInformationDetails" ], "xbrltype": "booleanItemType" }, "us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdoptionDate": { "auth_ref": [ "r0", "r1", "r95", "r96", "r105", "r149", "r150", "r166", "r167", "r168", "r169", "r170", "r209", "r279", "r280", "r281", "r298", "r327", "r329", "r330", "r331", "r334", "r350", "r352", "r353", "r354", "r357", "r358", "r367", "r381", "r419", "r420", "r449", "r450", "r496" ], "lang": { "en-us": { "role": { "documentation": "Date accounting standards update was adopted, in YYYY-MM-DD format.", "label": "Change In Accounting Principle Accounting Standards Update Adoption Date", "terseLabel": "Change in Accounting Principle, Accounting Standards Update, Adoption Date" } } }, "localname": "ChangeInAccountingPrincipleAccountingStandardsUpdateAdoptionDate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicesAdditionalInformationDetails" ], "xbrltype": "dateItemType" }, "us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateImmaterialEffect": { "auth_ref": [ "r99", "r110", "r151", "r173", "r286", "r302" ], "lang": { "en-us": { "role": { "documentation": "Indicates (true false) whether effect from applying amendment to accounting standards is immaterial.", "label": "Change In Accounting Principle Accounting Standards Update Immaterial Effect", "terseLabel": "Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]" } } }, "localname": "ChangeInAccountingPrincipleAccountingStandardsUpdateImmaterialEffect", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicesAdditionalInformationDetails" ], "xbrltype": "booleanItemType" }, "us-gaap_ClassOfStockDomain": { "auth_ref": [ "r89", "r90", "r114", "r115", "r116", "r118", "r120", "r126", "r127", "r128", "r165", "r210", "r214", "r215", "r216", "r219", "r220", "r230", "r231", "r234", "r235", "r349", "r487" ], "lang": { "en-us": { "role": { "documentation": "Share of stock differentiated by the voting rights the holder receives. Examples include, but are not limited to, common stock, redeemable preferred stock, nonredeemable preferred stock, and convertible stock.", "label": "Class Of Stock [Domain]", "terseLabel": "Class of Stock" } } }, "localname": "ClassOfStockDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "domainItemType" }, "us-gaap_ClassOfStockLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Class Of Stock [Line Items]", "terseLabel": "Class Of Stock [Line Items]" } } }, "localname": "ClassOfStockLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CollaborativeArrangementDisclosureTextBlock": { "auth_ref": [ "r310", "r311", "r313" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for collaborative arrangements in which the entity is a participant, including a) information about the nature and purpose of such arrangements; b) its rights and obligations thereunder; c) the accounting policy for collaborative arrangements; and d) the income statement classification and amounts attributable to transactions arising from the collaborative arrangement between participants.", "label": "Collaborative Arrangement Disclosure [Text Block]", "terseLabel": "CRISPR Collaboration Agreement" } } }, "localname": "CollaborativeArrangementDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreement" ], "xbrltype": "textBlockItemType" }, "us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]", "terseLabel": "Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]" } } }, "localname": "CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CommercialPaperMember": { "auth_ref": [ "r208" ], "lang": { "en-us": { "role": { "documentation": "Unsecured promissory note (generally negotiable) that provides institutions with short-term funds.", "label": "Commercial Paper [Member]", "terseLabel": "Commercial Paper" } } }, "localname": "CommercialPaperMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommitmentsAndContingencies": { "auth_ref": [ "r42", "r197", "r428", "r441" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10020.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.", "label": "Commitments And Contingencies", "terseLabel": "Commitments and contingencies (Note 7)" } } }, "localname": "CommitmentsAndContingencies", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Commitments And Contingencies Disclosure [Abstract]" } } }, "localname": "CommitmentsAndContingenciesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": { "auth_ref": [ "r194", "r195", "r196", "r204", "r478" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for commitments and contingencies.", "label": "Commitments And Contingencies Disclosure [Text Block]", "terseLabel": "Commitments and Contingencies" } } }, "localname": "CommitmentsAndContingenciesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingencies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CommonStockCapitalSharesReservedForFutureIssuance": { "auth_ref": [ "r44" ], "lang": { "en-us": { "role": { "documentation": "Aggregate number of common shares reserved for future issuance.", "label": "Common Stock Capital Shares Reserved For Future Issuance", "verboseLabel": "Number of common stock available for issuance" } } }, "localname": "CommonStockCapitalSharesReservedForFutureIssuance", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_CommonStockMember": { "auth_ref": [ "r95", "r96", "r337" ], "lang": { "en-us": { "role": { "documentation": "Stock that is subordinate to all other stock of the issuer.", "label": "Common Stock [Member]", "terseLabel": "Common Stock" } } }, "localname": "CommonStockMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "domainItemType" }, "us-gaap_CommonStockValue": { "auth_ref": [ "r21", "r384" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10050.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.", "label": "Common Stock Value", "terseLabel": "Common stock" } } }, "localname": "CommonStockValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ComprehensiveIncomeNetOfTax": { "auth_ref": [ "r58", "r60", "r61", "r66", "r430", "r443" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.", "label": "Comprehensive Income Net Of Tax", "totalLabel": "Comprehensive loss" } } }, "localname": "ComprehensiveIncomeNetOfTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ComprehensiveIncomeNetOfTaxAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Comprehensive Income Net Of Tax [Abstract]", "terseLabel": "Comprehensive loss:" } } }, "localname": "ComprehensiveIncomeNetOfTaxAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_ConstructionInProgressMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.", "label": "Construction In Progress [Member]", "terseLabel": "Construction in Progress" } } }, "localname": "ConstructionInProgressMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ConversionOfStockAmountConverted1": { "auth_ref": [ "r84", "r85", "r86" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The value of the stock converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.", "label": "Conversion Of Stock Amount Converted1", "terseLabel": "Temporary equity, conversion of convertible preferred stock to common stock" } } }, "localname": "ConversionOfStockAmountConverted1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "monetaryItemType" }, "us-gaap_ConversionOfStockSharesConverted1": { "auth_ref": [ "r84", "r85", "r86" ], "lang": { "en-us": { "role": { "documentation": "The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.", "label": "Conversion Of Stock Shares Converted1", "terseLabel": "Temporary equity, conversion of convertible preferred stock to common stock, Shares" } } }, "localname": "ConversionOfStockSharesConverted1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "sharesItemType" }, "us-gaap_ConvertiblePreferredStockMember": { "auth_ref": [ "r230", "r231", "r234" ], "lang": { "en-us": { "role": { "documentation": "Preferred stock that may be exchanged into common shares or other types of securities at the owner's option.", "label": "Convertible Preferred Stock [Member]", "terseLabel": "Convertible Preferred Stock" } } }, "localname": "ConvertiblePreferredStockMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "domainItemType" }, "us-gaap_CorporateDebtSecuritiesMember": { "auth_ref": [ "r248", "r255", "r461" ], "lang": { "en-us": { "role": { "documentation": "Debt securities issued by domestic or foreign corporate business, banks and other entities with a promise of repayment.", "label": "Corporate Debt Securities [Member]", "terseLabel": "Corporate Debt Securities" } } }, "localname": "CorporateDebtSecuritiesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleRealizedGainLoss": { "auth_ref": [ "r160" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Debt Securities Available For Sale Realized Gain Loss", "terseLabel": "Realized gain or loss on available-for-sale securities" } } }, "localname": "DebtSecuritiesAvailableForSaleRealizedGainLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock": { "auth_ref": [ "r161" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).", "label": "Debt Securities Available For Sale Table [Text Block]", "terseLabel": "Schedule of Short-term Investments" } } }, "localname": "DebtSecuritiesAvailableForSaleTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_DebtSecuritiesAvailableForSaleTerm": { "auth_ref": [ "r343" ], "lang": { "en-us": { "role": { "documentation": "Period between issuance and maturity of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Debt Securities Available For Sale Term", "terseLabel": "Available-for-sale securities, Maturity (in years)" } } }, "localname": "DebtSecuritiesAvailableForSaleTerm", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails" ], "xbrltype": "durationItemType" }, "us-gaap_DepreciationAndAmortization": { "auth_ref": [ "r81", "r188" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10160.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.", "label": "Depreciation And Amortization", "terseLabel": "Depreciation and amortization" } } }, "localname": "DepreciationAndAmortization", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepreciationDepletionAndAmortization": { "auth_ref": [ "r81", "r137" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.", "label": "Depreciation Depletion And Amortization", "terseLabel": "Depreciation and amortization expense" } } }, "localname": "DepreciationDepletionAndAmortization", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": { "auth_ref": [ "r290" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for share-based payment arrangement.", "label": "Disclosure Of Compensation Related Costs Share Based Payments [Text Block]", "terseLabel": "Share-Based Compensation" } } }, "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensation" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]" } } }, "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Earnings Per Share [Abstract]" } } }, "localname": "EarningsPerShareAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_EarningsPerShareBasicAndDiluted": { "auth_ref": [ "r119" ], "lang": { "en-us": { "role": { "documentation": "The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.", "label": "Earnings Per Share Basic And Diluted", "terseLabel": "Net loss per share, basic and diluted" } } }, "localname": "EarningsPerShareBasicAndDiluted", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareComputationOfBasicAndDilutedNetLossPerShareDetails", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "perShareItemType" }, "us-gaap_EarningsPerSharePolicyTextBlock": { "auth_ref": [ "r121", "r122" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.", "label": "Earnings Per Share Policy [Text Block]", "terseLabel": "Net Loss Per Share" } } }, "localname": "EarningsPerSharePolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_EarningsPerShareTextBlock": { "auth_ref": [ "r121", "r122", "r123", "r124" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for earnings per share.", "label": "Earnings Per Share [Text Block]", "terseLabel": "Net Loss Per Share" } } }, "localname": "EarningsPerShareTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShare" ], "xbrltype": "textBlockItemType" }, "us-gaap_EmployeeRelatedLiabilitiesCurrent": { "auth_ref": [ "r39" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfAccruedOtherCurrentLiabilitiesDetails": { "order": 10010.0, "parentTag": "us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).", "label": "Employee Related Liabilities Current", "terseLabel": "Accrued compensation" } } }, "localname": "EmployeeRelatedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfAccruedOtherCurrentLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]", "terseLabel": "Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]" } } }, "localname": "EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfShareBasedCompensationExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized": { "auth_ref": [ "r276" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cost not yet recognized for nonvested award under share-based payment arrangement.", "label": "Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized", "terseLabel": "Unrecognized compensation cost" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": { "auth_ref": [ "r276" ], "lang": { "en-us": { "role": { "documentation": "Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1", "terseLabel": "Unrecognized compensation cost, expected to be recognized over weighted average remaining service period" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_EmployeeStockMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "An Employee Stock Purchase Plan is a tax-efficient means by which employees of a corporation can purchase the corporation's stock.", "label": "Employee Stock [Member]", "terseLabel": "2020 Employee Stock Purchase Plan" } } }, "localname": "EmployeeStockMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EquityComponentDomain": { "auth_ref": [ "r2", "r62", "r63", "r64", "r95", "r96", "r97", "r100", "r107", "r109", "r125", "r172", "r237", "r244", "r283", "r284", "r285", "r300", "r301", "r337", "r360", "r361", "r362", "r363", "r364", "r365", "r451", "r452", "r453", "r500" ], "lang": { "en-us": { "role": { "documentation": "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc.", "label": "Equity Component [Domain]", "terseLabel": "Equity Component" } } }, "localname": "EquityComponentDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Abstract]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]", "terseLabel": "Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": { "auth_ref": [ "r340", "r341", "r342", "r347" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about asset and liability measured at fair value on recurring and nonrecurring basis.", "label": "Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]", "terseLabel": "Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByBalanceSheetGroupingTextBlock": { "auth_ref": [ "r340", "r348" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.", "label": "Fair Value By Balance Sheet Grouping [Text Block]", "terseLabel": "Summary of Fair Value of Financial Instrument" } } }, "localname": "FairValueByBalanceSheetGroupingTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueByFairValueHierarchyLevelAxis": { "auth_ref": [ "r222", "r225", "r226", "r248", "r249", "r250", "r251", "r252", "r253", "r254", "r255", "r341", "r389", "r390", "r391" ], "lang": { "en-us": { "role": { "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient.", "label": "Fair Value By Fair Value Hierarchy Level [Axis]", "terseLabel": "Fair Value Hierarchy and NAV" } } }, "localname": "FairValueByFairValueHierarchyLevelAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosuresAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Fair Value Disclosures [Abstract]" } } }, "localname": "FairValueDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosuresTextBlock": { "auth_ref": [ "r346" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.", "label": "Fair Value Disclosures [Text Block]", "terseLabel": "Fair Value of Financial Instruments" } } }, "localname": "FairValueDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstruments" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueInputsLevel1Member": { "auth_ref": [ "r222", "r248", "r249", "r254", "r255", "r341", "r389" ], "lang": { "en-us": { "role": { "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.", "label": "Fair Value Inputs Level1 [Member]", "terseLabel": "Quoted Prices in Active Markets for Identical Assets (Level 1)" } } }, "localname": "FairValueInputsLevel1Member", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel2Member": { "auth_ref": [ "r222", "r225", "r226", "r248", "r249", "r254", "r255", "r341", "r390" ], "lang": { "en-us": { "role": { "documentation": "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets.", "label": "Fair Value Inputs Level2 [Member]", "terseLabel": "Significant Other Observable Inputs (Level 2)" } } }, "localname": "FairValueInputsLevel2Member", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel3Member": { "auth_ref": [ "r222", "r225", "r226", "r248", "r249", "r250", "r251", "r252", "r253", "r254", "r255", "r341", "r391" ], "lang": { "en-us": { "role": { "documentation": "Unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.", "label": "Fair Value Inputs Level3 [Member]", "terseLabel": "Significant Unobservable Inputs (Level 3)" } } }, "localname": "FairValueInputsLevel3Member", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]", "terseLabel": "Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]" } } }, "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable": { "auth_ref": [ "r344", "r347" ], "lang": { "en-us": { "role": { "documentation": "Schedule of information required and determined to be provided for purposes of reconciling beginning and ending balances of fair value measurements of liabilities using significant unobservable inputs (level 3). Separately presenting changes during the period, attributable to: (1) total gains or losses for the period (realized and unrealized) and location reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (net); (3) transfers in and/or out of Level 3.", "label": "Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table]", "terseLabel": "Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table]" } } }, "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings": { "auth_ref": [ "r345" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10190.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 }, "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited": { "order": 10050.0, "parentTag": "us-gaap_NonoperatingIncomeExpense", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).", "label": "Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings", "negatedLabel": "Change in fair value of preferred stock purchase right liability", "terseLabel": "Change in fair value of preferred stock purchase right liability" } } }, "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": { "auth_ref": [ "r222", "r225", "r226", "r248", "r249", "r250", "r251", "r252", "r253", "r254", "r255", "r389", "r390", "r391" ], "lang": { "en-us": { "role": { "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value.", "label": "Fair Value Measurements Fair Value Hierarchy [Domain]", "terseLabel": "Fair Value Hierarchy and NAV" } } }, "localname": "FairValueMeasurementsFairValueHierarchyDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinancialInstrumentAxis": { "auth_ref": [ "r158", "r159", "r162", "r163", "r164", "r176", "r177", "r178", "r179", "r180", "r182", "r183", "r184", "r185", "r224", "r236", "r328", "r386", "r387", "r388", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r396", "r397", "r398", "r399", "r400", "r401", "r402", "r403", "r404", "r405", "r406", "r407", "r408", "r409", "r410", "r411", "r412", "r413", "r414", "r415", "r487", "r488", "r489", "r490", "r491", "r492", "r493" ], "lang": { "en-us": { "role": { "documentation": "Information by type of financial instrument.", "label": "Financial Instrument [Axis]", "terseLabel": "Financial Instrument" } } }, "localname": "FinancialInstrumentAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FurnitureAndFixturesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.", "label": "Furniture And Fixtures [Member]", "terseLabel": "Furniture and Fixtures" } } }, "localname": "FurnitureAndFixturesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails" ], "xbrltype": "domainItemType" }, "us-gaap_GeneralAndAdministrativeExpense": { "auth_ref": [ "r68" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited": { "order": 10100.0, "parentTag": "us-gaap_OperatingExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.", "label": "General And Administrative Expense", "terseLabel": "General and administrative" } } }, "localname": "GeneralAndAdministrativeExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_GeneralAndAdministrativeExpenseMember": { "auth_ref": [ "r67" ], "lang": { "en-us": { "role": { "documentation": "Primary financial statement caption encompassing general and administrative expense.", "label": "General And Administrative Expense [Member]", "terseLabel": "General and Administrative" } } }, "localname": "GeneralAndAdministrativeExpenseMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfShareBasedCompensationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_GuaranteeObligationsCurrentCarryingValue": { "auth_ref": [ "r207" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.", "label": "Guarantee Obligations Current Carrying Value", "terseLabel": "Liabilities recorded for agreements" } } }, "localname": "GuaranteeObligationsCurrentCarryingValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeStatementAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Income Statement [Abstract]" } } }, "localname": "IncomeStatementAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementLocationAxis": { "auth_ref": [ "r192", "r193" ], "lang": { "en-us": { "role": { "documentation": "Information by location in the income statement.", "label": "Income Statement Location [Axis]", "terseLabel": "Income Statement Location" } } }, "localname": "IncomeStatementLocationAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfShareBasedCompensationExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IncomeStatementLocationDomain": { "auth_ref": [ "r193" ], "lang": { "en-us": { "role": { "documentation": "Location in the income statement.", "label": "Income Statement Location [Domain]", "terseLabel": "Income Statement Location" } } }, "localname": "IncomeStatementLocationDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfShareBasedCompensationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IncomeTaxDisclosureAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Income Tax Disclosure [Abstract]" } } }, "localname": "IncomeTaxDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxDisclosureTextBlock": { "auth_ref": [ "r91", "r295", "r296", "r297", "r303", "r305", "r307", "r308", "r309" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.", "label": "Income Tax Disclosure [Text Block]", "terseLabel": "Income Taxes" } } }, "localname": "IncomeTaxDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureIncomeTaxes" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxExpenseBenefit": { "auth_ref": [ "r92", "r108", "r109", "r138", "r294", "r304", "r306", "r444" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.", "label": "Income Tax Expense Benefit", "terseLabel": "Provision for income taxes" } } }, "localname": "IncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureIncomeTaxesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Increase Decrease In Operating Capital [Abstract]", "terseLabel": "Changes in operating assets and liabilities:" } } }, "localname": "IncreaseDecreaseInOperatingCapitalAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets": { "auth_ref": [ "r80" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10210.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of increase (decrease) in prepaid expenses, and assets classified as other.", "label": "Increase Decrease In Prepaid Deferred Expense And Other Assets", "negatedLabel": "Prepaid expenses and other assets" } } }, "localname": "IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestReceivableCurrent": { "auth_ref": [ "r47" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Carrying amount as of the balance sheet date of current interest earned but not received. Also called accrued interest or accrued interest receivable. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.", "label": "Interest Receivable Current", "terseLabel": "Accrued interest receivable" } } }, "localname": "InterestReceivableCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InvestmentIncomeNet": { "auth_ref": [ "r69", "r71" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited": { "order": 10060.0, "parentTag": "us-gaap_NonoperatingIncomeExpense", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.", "label": "Investment Income Net", "terseLabel": "Interest income" } } }, "localname": "InvestmentIncomeNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_InvestmentTypeAxis": { "auth_ref": [ "r462", "r463", "r464", "r465", "r466", "r467", "r468", "r469", "r470", "r471", "r472", "r473", "r474", "r475", "r476" ], "lang": { "en-us": { "role": { "documentation": "Information by type of investments.", "label": "Investment Type [Axis]", "terseLabel": "Investment Type" } } }, "localname": "InvestmentTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsTables" ], "xbrltype": "stringItemType" }, "us-gaap_InvestmentTypeCategorizationMember": { "auth_ref": [ "r462", "r463", "r464", "r465", "r466", "r467", "r468", "r469", "r470", "r471", "r472", "r473", "r474", "r475", "r476" ], "lang": { "en-us": { "role": { "documentation": "Asset obtained to generate income or appreciate in value.", "label": "Investment Type Categorization [Member]", "terseLabel": "Investments" } } }, "localname": "InvestmentTypeCategorizationMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsTables" ], "xbrltype": "domainItemType" }, "us-gaap_LeaseContractualTermAxis": { "auth_ref": [ "r374" ], "lang": { "en-us": { "role": { "documentation": "Information by contractual term of lease arrangement.", "label": "Lease Contractual Term [Axis]", "terseLabel": "Lease Contractual Term" } } }, "localname": "LeaseContractualTermAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LeaseContractualTermDomain": { "auth_ref": [ "r374" ], "lang": { "en-us": { "role": { "documentation": "Contractual term of lease arrangement.", "label": "Lease Contractual Term [Domain]", "terseLabel": "Lease Contractual Term" } } }, "localname": "LeaseContractualTermDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LeaseholdImprovementsMember": { "auth_ref": [ "r189" ], "lang": { "en-us": { "role": { "documentation": "Additions or improvements to assets held under a lease arrangement.", "label": "Leasehold Improvements [Member]", "terseLabel": "Leasehold Improvements" } } }, "localname": "LeaseholdImprovementsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LeasesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Leases [Abstract]" } } }, "localname": "LeasesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_LesseeLeaseDescriptionLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Lessee Lease Description [Line Items]", "terseLabel": "Lessee Lease Description [Line Items]" } } }, "localname": "LesseeLeaseDescriptionLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LesseeLeaseDescriptionTable": { "auth_ref": [ "r374" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about lessee's leases.", "label": "Lessee Lease Description [Table]", "terseLabel": "Lessee Lease Description [Table]" } } }, "localname": "LesseeLeaseDescriptionTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LesseeOperatingLeaseExistenceOfOptionToExtend": { "auth_ref": [ "r373" ], "lang": { "en-us": { "role": { "documentation": "Indicates (true false) whether lessee has option to extend operating lease.", "label": "Lessee Operating Lease Existence Of Option To Extend", "terseLabel": "Operating lease, existence of option to extend" } } }, "localname": "LesseeOperatingLeaseExistenceOfOptionToExtend", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "booleanItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": { "auth_ref": [ "r378" ], "lang": { "en-us": { "role": { "documentation": "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.", "label": "Lessee Operating Lease Liability Maturity Table [Text Block]", "terseLabel": "Schedule of Maturities of Operating Lease Liabilities" } } }, "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": { "auth_ref": [ "r378" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails2": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease.", "label": "Lessee Operating Lease Liability Payments Due", "totalLabel": "Total future minimum lease payments" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": { "auth_ref": [ "r378" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": { "order": 10040.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee Operating Lease Liability Payments Due Next Twelve Months", "terseLabel": "2022" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": { "auth_ref": [ "r378" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": { "order": 10070.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee Operating Lease Liability Payments Due Year Four", "terseLabel": "2025" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFour", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": { "auth_ref": [ "r378" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": { "order": 10060.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee Operating Lease Liability Payments Due Year Three", "terseLabel": "2024" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": { "auth_ref": [ "r378" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": { "order": 10050.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).", "label": "Lessee Operating Lease Liability Payments Due Year Two", "terseLabel": "2023" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear": { "auth_ref": [ "r378" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": { "order": 10030.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.", "label": "Lessee Operating Lease Liability Payments Remainder Of Fiscal Year", "terseLabel": "2021 (remaining three months)" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": { "auth_ref": [ "r378" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails2": { "order": 10010.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.", "label": "Lessee Operating Lease Liability Undiscounted Excess Amount", "negatedLabel": "Less imputed interest" } } }, "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseOptionToExtend": { "auth_ref": [ "r373" ], "lang": { "en-us": { "role": { "documentation": "Description of terms and conditions of option to extend lessee's operating lease. Includes, but is not limited to, information about option recognized as part of right-of-use asset and lease liability.", "label": "Lessee Operating Lease Option To Extend", "terseLabel": "Lessee option to extend description" } } }, "localname": "LesseeOperatingLeaseOptionToExtend", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LesseeOperatingLeaseRemainingLeaseTerm": { "auth_ref": [ "r372" ], "lang": { "en-us": { "role": { "documentation": "Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Lessee Operating Lease Remaining Lease Term", "terseLabel": "Lease term" } } }, "localname": "LesseeOperatingLeaseRemainingLeaseTerm", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_LesseeOperatingLeaseRenewalTerm": { "auth_ref": [ "r373" ], "lang": { "en-us": { "role": { "documentation": "Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Lessee Operating Lease Renewal Term", "terseLabel": "Renewal term" } } }, "localname": "LesseeOperatingLeaseRenewalTerm", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_LesseeOperatingLeaseTermOfContract": { "auth_ref": [ "r373" ], "lang": { "en-us": { "role": { "documentation": "Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Lessee Operating Lease Term Of Contract", "terseLabel": "Lessee, operating lease, term of contract" } } }, "localname": "LesseeOperatingLeaseTermOfContract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_LesseeOperatingLeasesTextBlock": { "auth_ref": [ "r380" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.", "label": "Lessee Operating Leases [Text Block]", "terseLabel": "Leases" } } }, "localname": "LesseeOperatingLeasesTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeases" ], "xbrltype": "textBlockItemType" }, "us-gaap_LetterOfCreditMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "A document typically issued by a financial institution which acts as a guarantee of payment to a beneficiary, or as the source of payment for a specific transaction (for example, wiring funds to a foreign exporter if and when specified merchandise is accepted pursuant to the terms of the letter of credit).", "label": "Letter Of Credit [Member]", "terseLabel": "Letter of Credit" } } }, "localname": "LetterOfCreditMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LettersOfCreditOutstandingAmount": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.", "label": "Letters Of Credit Outstanding Amount", "terseLabel": "Letters of credit outstanding amount" } } }, "localname": "LettersOfCreditOutstandingAmount", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_Liabilities": { "auth_ref": [ "r37", "r90", "r142", "r165", "r210", "r211", "r212", "r214", "r215", "r216", "r217", "r218", "r219", "r220", "r317", "r322", "r323", "r349", "r382", "r383" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10010.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.", "label": "Liabilities", "totalLabel": "Total liabilities" } } }, "localname": "Liabilities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquity": { "auth_ref": [ "r27", "r90", "r165", "r349", "r384", "r424", "r439" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.", "label": "Liabilities And Stockholders Equity", "totalLabel": "Total liabilities and stockholders\u2019 equity" } } }, "localname": "LiabilitiesAndStockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Liabilities And Stockholders Equity [Abstract]", "terseLabel": "Liabilities and stockholders\u2019 equity" } } }, "localname": "LiabilitiesAndStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_LiabilitiesCurrent": { "auth_ref": [ "r40", "r90", "r165", "r210", "r211", "r212", "r214", "r215", "r216", "r217", "r218", "r219", "r220", "r317", "r322", "r323", "r349", "r382", "r383", "r384" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10090.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.", "label": "Liabilities Current", "totalLabel": "Total current liabilities" } } }, "localname": "LiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesCurrentAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Liabilities Current [Abstract]", "terseLabel": "Current liabilities" } } }, "localname": "LiabilitiesCurrentAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_LossContingenciesLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Loss Contingencies [Line Items]", "terseLabel": "Loss Contingencies [Line Items]" } } }, "localname": "LossContingenciesLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LossContingenciesTable": { "auth_ref": [ "r197", "r198", "r199", "r200", "r201", "r202", "r203", "r205", "r206" ], "lang": { "en-us": { "role": { "documentation": "Discloses the specific components (such as the nature, name, and date) of the loss contingency and gives an estimate of the possible loss or range of loss, or states that a reasonable estimate cannot be made. Excludes environmental contingencies, warranties and unconditional purchase obligations.", "label": "Loss Contingencies [Table]", "terseLabel": "Loss Contingencies [Table]" } } }, "localname": "LossContingenciesTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_MarketableSecuritiesCurrent": { "auth_ref": [ "r8", "r38" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investment in marketable security, classified as current.", "label": "Marketable Securities Current", "terseLabel": "Marketable securities" } } }, "localname": "MarketableSecuritiesCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_MoneyMarketFundsAtCarryingValue": { "auth_ref": [], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails": { "order": 10010.0, "parentTag": "us-gaap_AssetsFairValueDisclosure", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.", "label": "Money Market Funds At Carrying Value", "terseLabel": "Money market funds" } } }, "localname": "MoneyMarketFundsAtCarryingValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_MoneyMarketFundsMember": { "auth_ref": [ "r248" ], "lang": { "en-us": { "role": { "documentation": "Fund that invests in short-term money-market instruments, for example, but not limited to, commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and other highly liquid securities.", "label": "Money Market Funds [Member]", "terseLabel": "Money Market Funds" } } }, "localname": "MoneyMarketFundsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivities": { "auth_ref": [ "r78" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10050.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.", "label": "Net Cash Provided By Used In Financing Activities", "totalLabel": "Net cash provided by financing activities" } } }, "localname": "NetCashProvidedByUsedInFinancingActivities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Net Cash Provided By Used In Financing Activities [Abstract]", "terseLabel": "Cash flows from financing activities" } } }, "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivities": { "auth_ref": [ "r78" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10040.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.", "label": "Net Cash Provided By Used In Investing Activities", "totalLabel": "Net cash provided by (used in) investing activities" } } }, "localname": "NetCashProvidedByUsedInInvestingActivities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Net Cash Provided By Used In Investing Activities [Abstract]", "terseLabel": "Cash flows from investing activities" } } }, "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivities": { "auth_ref": [ "r78", "r79", "r82" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10030.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.", "label": "Net Cash Provided By Used In Operating Activities", "totalLabel": "Net cash used in operating activities" } } }, "localname": "NetCashProvidedByUsedInOperatingActivities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Net Cash Provided By Used In Operating Activities [Abstract]", "terseLabel": "Cash flows from operating activities" } } }, "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_NetIncomeLoss": { "auth_ref": [ "r5", "r56", "r59", "r64", "r65", "r82", "r90", "r99", "r103", "r104", "r105", "r106", "r108", "r109", "r117", "r139", "r140", "r143", "r144", "r146", "r165", "r210", "r211", "r212", "r214", "r215", "r216", "r217", "r218", "r219", "r220", "r339", "r349", "r429", "r442" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited": { "order": 10010.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.", "label": "Net Income Loss", "terseLabel": "Net loss", "totalLabel": "Net loss" } } }, "localname": "NetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareComputationOfBasicAndDilutedNetLossPerShareDetails", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetIncomeLossAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Net Income Loss [Abstract]", "terseLabel": "Numerator:" } } }, "localname": "NetIncomeLossAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareComputationOfBasicAndDilutedNetLossPerShareDetails" ], "xbrltype": "stringItemType" }, "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.", "label": "New Accounting Pronouncements Policy Policy [Text Block]", "terseLabel": "Recent Accounting Pronouncements" } } }, "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_NonoperatingIncomeExpense": { "auth_ref": [ "r70" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited": { "order": 10040.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).", "label": "Nonoperating Income Expense", "totalLabel": "Total other income (expense), net" } } }, "localname": "NonoperatingIncomeExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_NonoperatingIncomeExpenseAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Nonoperating Income Expense [Abstract]", "terseLabel": "Other income (expense), net:" } } }, "localname": "NonoperatingIncomeExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_NumberOfOperatingSegments": { "auth_ref": [ "r136" ], "lang": { "en-us": { "role": { "documentation": "Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.", "label": "Number Of Operating Segments", "terseLabel": "Number of operating segments" } } }, "localname": "NumberOfOperatingSegments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails" ], "xbrltype": "integerItemType" }, "us-gaap_OperatingExpenses": { "auth_ref": [], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited": { "order": 10080.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.", "label": "Operating Expenses", "totalLabel": "Total operating expenses" } } }, "localname": "OperatingExpenses", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingExpensesAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Operating Expenses [Abstract]", "terseLabel": "Operating expenses" } } }, "localname": "OperatingExpensesAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingIncomeLoss": { "auth_ref": [ "r139", "r140", "r143", "r144", "r146" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited": { "order": 10030.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The net result for the period of deducting operating expenses from operating revenues.", "label": "Operating Income Loss", "totalLabel": "Loss from operations" } } }, "localname": "OperatingIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseExpense": { "auth_ref": [ "r370" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of operating lease expense. Excludes sublease income.", "label": "Operating Lease Expense", "terseLabel": "Rent expense" } } }, "localname": "OperatingLeaseExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiability": { "auth_ref": [ "r369" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails2": { "order": 10020.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease.", "label": "Operating Lease Liability", "terseLabel": "Present value of net minimum lease payments", "totalLabel": "Total lease liability" } } }, "localname": "OperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Operating Lease Liability [Abstract]", "terseLabel": "Operating lease liabilities:" } } }, "localname": "OperatingLeaseLiabilityAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingLeaseLiabilityCurrent": { "auth_ref": [ "r369" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": { "order": 10010.0, "parentTag": "us-gaap_OperatingLeaseLiability", "weight": 1.0 }, "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10130.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.", "label": "Operating Lease Liability Current", "terseLabel": "Operating lease liabilities, current portion" } } }, "localname": "OperatingLeaseLiabilityCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilityNoncurrent": { "auth_ref": [ "r369" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails": { "order": 10020.0, "parentTag": "us-gaap_OperatingLeaseLiability", "weight": 1.0 }, "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10100.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.", "label": "Operating Lease Liability Noncurrent", "terseLabel": "Operating lease liabilities, net of current portion" } } }, "localname": "OperatingLeaseLiabilityNoncurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasePayments": { "auth_ref": [ "r371", "r375" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.", "label": "Operating Lease Payments", "terseLabel": "Cash paid for operating leases" } } }, "localname": "OperatingLeasePayments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseRightOfUseAsset": { "auth_ref": [ "r368" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10180.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of lessee's right to use underlying asset under operating lease.", "label": "Operating Lease Right Of Use Asset", "terseLabel": "Operating lease right-of-use assets" } } }, "localname": "OperatingLeaseRightOfUseAsset", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense": { "auth_ref": [ "r81" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10180.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of amortization expense for right-of-use asset from operating lease.", "label": "Operating Lease Right Of Use Asset Amortization Expense", "terseLabel": "Non-cash lease expense" } } }, "localname": "OperatingLeaseRightOfUseAssetAmortizationExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": { "auth_ref": [ "r377", "r379" ], "lang": { "en-us": { "role": { "documentation": "Weighted average discount rate for operating lease calculated at point in time.", "label": "Operating Lease Weighted Average Discount Rate Percent", "terseLabel": "Weighted-average discount rate" } } }, "localname": "OperatingLeaseWeightedAverageDiscountRatePercent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": { "auth_ref": [ "r376", "r379" ], "lang": { "en-us": { "role": { "documentation": "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.", "label": "Operating Lease Weighted Average Remaining Lease Term1", "terseLabel": "Weighted-average remaining lease term" } } }, "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "durationItemType" }, "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Organization Consolidation And Presentation Of Financial Statements [Abstract]" } } }, "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock": { "auth_ref": [ "r6", "r326" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.", "label": "Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block]", "terseLabel": "Organization and Description of Business" } } }, "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusiness" ], "xbrltype": "textBlockItemType" }, "us-gaap_OtherAssetsCurrent": { "auth_ref": [ "r47", "r384" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPrepaidExpensesAndOtherCurrentAssetsDetails": { "order": 10020.0, "parentTag": "us-gaap_PrepaidExpenseAndOtherAssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of current assets classified as other.", "label": "Other Assets Current", "terseLabel": "Other current assets" } } }, "localname": "OtherAssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPrepaidExpensesAndOtherCurrentAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherAssetsNoncurrent": { "auth_ref": [ "r33" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10190.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of noncurrent assets classified as other.", "label": "Other Assets Noncurrent", "terseLabel": "Other long-term assets" } } }, "localname": "OtherAssetsNoncurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent": { "auth_ref": [ "r57", "r60", "r314", "r315", "r320" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited": { "order": 10020.0, "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount after tax of other comprehensive income (loss) attributable to parent entity.", "label": "Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent", "terseLabel": "Other comprehensive gain (loss)" } } }, "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax": { "auth_ref": [ "r51", "r53" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.", "label": "Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax", "terseLabel": "Unrealized gain (loss) on short-term investments" } } }, "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherLiabilitiesNoncurrent": { "auth_ref": [ "r41" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10110.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.", "label": "Other Liabilities Noncurrent", "terseLabel": "Other long-term liabilities" } } }, "localname": "OtherLiabilitiesNoncurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherNoncashIncomeExpense": { "auth_ref": [ "r82" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10200.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.", "label": "Other Noncash Income Expense", "negatedLabel": "Others" } } }, "localname": "OtherNoncashIncomeExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherNonoperatingIncomeExpense": { "auth_ref": [ "r72" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited": { "order": 10070.0, "parentTag": "us-gaap_NonoperatingIncomeExpense", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Amount of income (expense) related to nonoperating activities, classified as other.", "label": "Other Nonoperating Income Expense", "terseLabel": "Other expense, net" } } }, "localname": "OtherNonoperatingIncomeExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": { "auth_ref": [ "r74" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10110.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.", "label": "Payments To Acquire Property Plant And Equipment", "negatedLabel": "Purchases of property and equipment" } } }, "localname": "PaymentsToAcquirePropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireShortTermInvestments": { "auth_ref": [ "r75" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10120.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term.", "label": "Payments To Acquire Short Term Investments", "negatedLabel": "Purchases of short-term investments" } } }, "localname": "PaymentsToAcquireShortTermInvestments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PlanNameAxis": { "auth_ref": [ "r261", "r277" ], "lang": { "en-us": { "role": { "documentation": "Information by plan name for share-based payment arrangement.", "label": "Plan Name [Axis]", "terseLabel": "Plan Name" } } }, "localname": "PlanNameAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PlanNameDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Plan name for share-based payment arrangement.", "label": "Plan Name [Domain]", "terseLabel": "Plan Name" } } }, "localname": "PlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PreferredStockValue": { "auth_ref": [ "r20", "r384" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10040.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.", "label": "Preferred Stock Value", "terseLabel": "Preferred stock" } } }, "localname": "PreferredStockValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PrepaidExpenseAndOtherAssetsCurrent": { "auth_ref": [ "r10", "r28", "r29" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPrepaidExpensesAndOtherCurrentAssetsDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10220.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.", "label": "Prepaid Expense And Other Assets Current", "terseLabel": "Prepaid expenses and other current assets", "totalLabel": "Total prepaid expenses and other current assets" } } }, "localname": "PrepaidExpenseAndOtherAssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPrepaidExpensesAndOtherCurrentAssetsDetails", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PrepaidExpenseCurrent": { "auth_ref": [ "r9", "r11", "r186", "r187" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPrepaidExpensesAndOtherCurrentAssetsDetails": { "order": 10010.0, "parentTag": "us-gaap_PrepaidExpenseAndOtherAssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.", "label": "Prepaid Expense Current", "terseLabel": "Prepaid expenses" } } }, "localname": "PrepaidExpenseCurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPrepaidExpensesAndOtherCurrentAssetsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceInitialPublicOffering": { "auth_ref": [ "r76" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10070.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow associated with the amount received from entity's first offering of stock to the public.", "label": "Proceeds From Issuance Initial Public Offering", "terseLabel": "Proceeds from initial public offering, net of issuance costs" } } }, "localname": "ProceedsFromIssuanceInitialPublicOffering", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceOrSaleOfEquity": { "auth_ref": [ "r76" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.", "label": "Proceeds From Issuance Or Sale Of Equity", "terseLabel": "Issuance and sale of equity" } } }, "localname": "ProceedsFromIssuanceOrSaleOfEquity", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromSaleOfShortTermInvestments": { "auth_ref": [ "r73" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10130.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The cash inflow from sales of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, within the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the short-term.", "label": "Proceeds From Sale Of Short Term Investments", "terseLabel": "Maturities of short-term investments" } } }, "localname": "ProceedsFromSaleOfShortTermInvestments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromStockOptionsExercised": { "auth_ref": [ "r76", "r278" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10080.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash inflow from exercise of option under share-based payment arrangement.", "label": "Proceeds From Stock Options Exercised", "terseLabel": "Proceeds from stock option exercises" } } }, "localname": "ProceedsFromStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProfitLoss": { "auth_ref": [ "r5", "r56", "r59", "r64", "r77", "r90", "r99", "r108", "r109", "r139", "r140", "r143", "r144", "r146", "r165", "r210", "r211", "r212", "r214", "r215", "r216", "r217", "r218", "r219", "r220", "r314", "r318", "r319", "r324", "r325", "r339", "r349", "r431" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10140.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.", "label": "Profit Loss", "terseLabel": "Net loss" } } }, "localname": "ProfitLoss", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentByTypeAxis": { "auth_ref": [ "r32", "r191" ], "lang": { "en-us": { "role": { "documentation": "Information by type of long-lived, physical assets used to produce goods and services and not intended for resale.", "label": "Property Plant And Equipment By Type [Axis]", "terseLabel": "Long-Lived Tangible Asset" } } }, "localname": "PropertyPlantAndEquipmentByTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentGross": { "auth_ref": [ "r31", "r189" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails": { "order": 10010.0, "parentTag": "us-gaap_PropertyPlantAndEquipmentNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.", "label": "Property Plant And Equipment Gross", "terseLabel": "Total property and equipment" } } }, "localname": "PropertyPlantAndEquipmentGross", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Property Plant And Equipment [Line Items]", "terseLabel": "Property Plant And Equipment [Line Items]" } } }, "localname": "PropertyPlantAndEquipmentLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentNet": { "auth_ref": [ "r14", "r15", "r191", "r384", "r433", "r440" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10170.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.", "label": "Property Plant And Equipment Net", "terseLabel": "Property and equipment, net", "totalLabel": "Total property and equipment, net" } } }, "localname": "PropertyPlantAndEquipmentNet", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentTextBlock": { "auth_ref": [ "r14", "r191" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.", "label": "Property Plant And Equipment [Text Block]", "terseLabel": "Schedule of Property and Equipment, Net" } } }, "localname": "PropertyPlantAndEquipmentTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTypeDomain": { "auth_ref": [ "r14", "r189" ], "lang": { "en-us": { "role": { "documentation": "Listing of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.", "label": "Property Plant And Equipment Type [Domain]", "terseLabel": "Long-Lived Tangible Asset" } } }, "localname": "PropertyPlantAndEquipmentTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersByTypeAxis": { "auth_ref": [ "r292", "r293" ], "lang": { "en-us": { "role": { "documentation": "Information by form of arrangement related to research and development.", "label": "Research And Development Arrangement Contract To Perform For Others By Type [Axis]", "terseLabel": "Research and Development Arrangement, Contract to Perform for Others, Type" } } }, "localname": "ResearchAndDevelopmentArrangementContractToPerformForOthersByTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersTypeDomain": { "auth_ref": [ "r292", "r293" ], "lang": { "en-us": { "role": { "documentation": "Listing of significant agreements under research and development arrangements accounted for as a contract to perform research and development for others.", "label": "Research And Development Arrangement Contract To Perform For Others Type [Domain]", "terseLabel": "Research and Development Arrangement, Contract to Perform for Others, Type" } } }, "localname": "ResearchAndDevelopmentArrangementContractToPerformForOthersTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ResearchAndDevelopmentExpense": { "auth_ref": [ "r291", "r417", "r481" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited": { "order": 10090.0, "parentTag": "us-gaap_OperatingExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.", "label": "Research And Development Expense", "terseLabel": "Research and development" } } }, "localname": "ResearchAndDevelopmentExpense", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ResearchAndDevelopmentExpenseMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Primary financial statement caption in which the reported facts about research and development expense have been included.", "label": "Research And Development Expense [Member]", "terseLabel": "Research and Development" } } }, "localname": "ResearchAndDevelopmentExpenseMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfShareBasedCompensationExpenseDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RestrictedCash": { "auth_ref": [ "r87", "r422", "r436" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10020.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.", "label": "Restricted Cash", "terseLabel": "Restricted cash" } } }, "localname": "RestrictedCash", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Type of cash and cash equivalent. Cash is currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Restricted Cash And Cash Equivalents Cash And Cash Equivalents [Member]", "terseLabel": "Cash and Cash Equivalents" } } }, "localname": "RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RestrictedCashNoncurrent": { "auth_ref": [ "r13", "r16", "r87", "r477" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10160.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of cash restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.", "label": "Restricted Cash Noncurrent", "terseLabel": "Restricted cash" } } }, "localname": "RestrictedCashNoncurrent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_RestrictedStockMember": { "auth_ref": [ "r121" ], "lang": { "en-us": { "role": { "documentation": "Stock including a provision that prohibits sale or substantive sale of an equity instrument for a specified period of time or until specified performance conditions are met.", "label": "Restricted Stock [Member]", "terseLabel": "Restricted Stock" } } }, "localname": "RestrictedStockMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RetainedEarningsAccumulatedDeficit": { "auth_ref": [ "r23", "r244", "r286", "r384", "r438", "r455", "r460" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10080.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained Earnings Accumulated Deficit", "negatedLabel": "Accumulated deficit", "terseLabel": "Accumulated deficit" } } }, "localname": "RetainedEarningsAccumulatedDeficit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_RetainedEarningsMember": { "auth_ref": [ "r2", "r95", "r96", "r97", "r100", "r107", "r109", "r172", "r283", "r284", "r285", "r300", "r301", "r337", "r451", "r453" ], "lang": { "en-us": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained Earnings [Member]", "terseLabel": "Accumulated Deficit" } } }, "localname": "RetainedEarningsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "domainItemType" }, "us-gaap_SaleOfStockNameOfTransactionDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Sale of the entity's stock, including, but not limited to, initial public offering (IPO) and private placement.", "label": "Sale Of Stock Name Of Transaction [Domain]", "terseLabel": "Sale of Stock" } } }, "localname": "SaleOfStockNameOfTransactionDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of the (a) carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses.", "label": "Schedule Of Accounts Payable And Accrued Liabilities Table [Text Block]", "terseLabel": "Schedule of Accrued Other Current Liabilities" } } }, "localname": "ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable": { "auth_ref": [ "r121" ], "lang": { "en-us": { "role": { "documentation": "Schedule for securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by Antidilutive Securities.", "label": "Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table]", "terseLabel": "Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table]" } } }, "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareSummarizesOutstandingPotentiallyDilutiveSecuritiesExcludedInCalculationOfDilutedNetLossPerShareDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock": { "auth_ref": [ "r121" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.", "label": "Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block]", "terseLabel": "Summarizes the Outstanding Potentially Dilutive Securities Excluded in Calculation of Diluted Net Loss Per Share" } } }, "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable": { "auth_ref": [ "r312" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations.", "label": "Schedule Of Collaborative Arrangements And Noncollaborative Arrangement Transactions [Table]", "terseLabel": "Schedule Of Collaborative Arrangements And Noncollaborative Arrangement Transactions [Table]" } } }, "localname": "ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock": { "auth_ref": [ "r274" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.", "label": "Schedule Of Compensation Cost For Share Based Payment Arrangements Allocation Of Share Based Compensation Costs By Plan Table [Text Block]", "terseLabel": "Summary of Share-based Compensation Expense" } } }, "localname": "ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": { "auth_ref": [ "r120" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.", "label": "Schedule Of Earnings Per Share Basic And Diluted Table [Text Block]", "terseLabel": "Computation of Basic and Diluted Net Loss Per Share" } } }, "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable": { "auth_ref": [ "r260", "r274", "r287" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about amount recognized for award under share-based payment arrangement. Includes, but is not limited to, amount expensed in statement of income or comprehensive income, amount capitalized in statement of financial position, and corresponding reporting line item in financial statements.", "label": "Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table]", "terseLabel": "Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table]" } } }, "localname": "ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfShareBasedCompensationExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable": { "auth_ref": [ "r32", "r191" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.", "label": "Schedule Of Property Plant And Equipment [Table]", "terseLabel": "Schedule Of Property Plant And Equipment [Table]" } } }, "localname": "ScheduleOfPropertyPlantAndEquipmentTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponentsScheduleOfPropertyAndEquipmentNetDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": { "auth_ref": [ "r261", "r277" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of information about share-based payment arrangement.", "label": "Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]", "terseLabel": "Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]" } } }, "localname": "ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock": { "auth_ref": [ "r264", "r270", "r272" ], "lang": { "en-us": { "role": { "documentation": "Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.", "label": "Schedule Of Share Based Compensation Stock Options Activity Table [Text Block]", "terseLabel": "Summary of Stock Option Activity" } } }, "localname": "ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfStockByClassTable": { "auth_ref": [ "r43", "r89", "r126", "r127", "r227", "r228", "r229", "r230", "r231", "r232", "r233", "r234", "r235", "r236", "r238", "r239", "r240", "r241", "r242", "r243", "r244" ], "lang": { "en-us": { "role": { "documentation": "Schedule detailing information related to equity by class of stock. Class of stock includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. It also includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity.", "label": "Schedule Of Stock By Class [Table]", "terseLabel": "Schedule Of Stock By Class [Table]" } } }, "localname": "ScheduleOfStockByClassTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SecurityDeposit": { "auth_ref": [ "r48" ], "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease.", "label": "Security Deposit", "terseLabel": "Security deposit" } } }, "localname": "SecurityDeposit", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensation": { "auth_ref": [ "r80" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited": { "order": 10150.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of noncash expense for share-based payment arrangement.", "label": "Share Based Compensation", "terseLabel": "Share-based compensation expense" } } }, "localname": "ShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTOFCASHFLOWSUnaudited" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Share Based Compensation Arrangement By Share Based Payment Award [Line Items]", "terseLabel": "Share Based Compensation Arrangement By Share Based Payment Award [Line Items]" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate": { "auth_ref": [ "r277" ], "lang": { "en-us": { "role": { "documentation": "The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Maximum Employee Subscription Rate", "terseLabel": "Maximum percentage of employee compensation eligible for plan" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized": { "auth_ref": [ "r262" ], "lang": { "en-us": { "role": { "documentation": "Number of shares authorized for issuance under share-based payment arrangement.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized", "terseLabel": "Number of common stock authorized for issuance" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber": { "auth_ref": [ "r267" ], "lang": { "en-us": { "role": { "documentation": "The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number", "terseLabel": "Number of shares, exercisable" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice": { "auth_ref": [ "r267" ], "lang": { "en-us": { "role": { "documentation": "The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price", "terseLabel": "Weighted-average exercise price, exercisable" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod": { "auth_ref": [ "r269" ], "lang": { "en-us": { "role": { "documentation": "The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period", "negatedLabel": "Number of shares, forfeited" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Gross number of share options (or share units) granted during the period.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross", "terseLabel": "Number of shares, granted" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r271" ], "lang": { "en-us": { "role": { "documentation": "The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value", "terseLabel": "Weighted average grant date fair value of stock option" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber": { "auth_ref": [ "r266", "r277" ], "lang": { "en-us": { "role": { "documentation": "Number of options outstanding, including both vested and non-vested options.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number", "periodEndLabel": "Number of shares, outstanding ending balance", "periodStartLabel": "Number of shares, outstanding beginning balance" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice": { "auth_ref": [ "r265" ], "lang": { "en-us": { "role": { "documentation": "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price", "periodEndLabel": "Weighted-average exercise price, outstanding ending balance", "periodStartLabel": "Weighted-average exercise price, outstanding beginning balance" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber": { "auth_ref": [ "r273" ], "lang": { "en-us": { "role": { "documentation": "Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number", "terseLabel": "Number of shares, vested and expected to vest" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice": { "auth_ref": [ "r273" ], "lang": { "en-us": { "role": { "documentation": "Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price", "terseLabel": "Weighted-average exercise price, vested and expected to vest" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod": { "auth_ref": [ "r277" ], "lang": { "en-us": { "role": { "documentation": "Number of shares issued under share-based payment arrangement.", "label": "Share Based Compensation Arrangement By Share Based Payment Award Shares Issued In Period", "terseLabel": "Shares issued" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": { "auth_ref": [ "r259", "r263" ], "lang": { "en-us": { "role": { "documentation": "Award under share-based payment arrangement.", "label": "Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain]", "terseLabel": "Award Type" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Weighted average price at which option holders acquired shares when converting their stock options into shares.", "label": "Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price", "terseLabel": "Weighted-average exercise price, exercised" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.", "label": "Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price", "terseLabel": "Weighted-average exercise price, forfeited" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.", "label": "Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price", "terseLabel": "Weighted-average exercise price, granted" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1": { "auth_ref": [ "r277" ], "lang": { "en-us": { "role": { "documentation": "Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1", "terseLabel": "Weighted-average remaining contractual term (in years), exercisable" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2": { "auth_ref": [ "r273" ], "lang": { "en-us": { "role": { "documentation": "Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2", "terseLabel": "Weighted-average remaining contractual term (in years), outstanding balance" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1": { "auth_ref": [ "r273" ], "lang": { "en-us": { "role": { "documentation": "Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.", "label": "Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1", "terseLabel": "Weighted-average remaining contractual term (in years), vested and expected to vest" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Purchase price of common stock expressed as a percentage of its fair value.", "label": "Sharebased Compensation Arrangement By Sharebased Payment Award Purchase Price Of Common Stock Percent", "terseLabel": "Commons stock purchase price as percentage of fair value" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "percentItemType" }, "us-gaap_SharesOutstanding": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Number of shares issued which are neither cancelled nor held in the treasury.", "label": "Shares Outstanding", "periodEndLabel": "Ending Balance, Shares", "periodStartLabel": "Beginning Balance, Shares" } } }, "localname": "SharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "sharesItemType" }, "us-gaap_ShortTermDebtTypeAxis": { "auth_ref": [ "r35" ], "lang": { "en-us": { "role": { "documentation": "Information by type of short-term debt arrangement.", "label": "Short Term Debt Type [Axis]", "terseLabel": "Short-term Debt, Type" } } }, "localname": "ShortTermDebtTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShortTermDebtTypeDomain": { "auth_ref": [ "r34" ], "lang": { "en-us": { "role": { "documentation": "Type of short-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing.", "label": "Short Term Debt Type [Domain]", "terseLabel": "Short-term Debt, Type" } } }, "localname": "ShortTermDebtTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShortTermInvestments": { "auth_ref": [ "r17", "r425", "r426", "r434" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails": { "order": 10020.0, "parentTag": "us-gaap_AssetsFairValueDisclosure", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-us": { "role": { "documentation": "Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.", "label": "Short Term Investments", "terseLabel": "Total short-term investments" } } }, "localname": "ShortTermInvestments", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShortTermInvestmentsMember": { "auth_ref": [ "r473", "r474", "r475", "r476" ], "lang": { "en-us": { "role": { "documentation": "Investments which are not otherwise included in another category or item that the entity has the intent to sell or dispose of within one year from the date of the balance sheet.", "label": "Short Term Investments [Member]", "terseLabel": "Short-term investments" } } }, "localname": "ShortTermInvestmentsMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsTables" ], "xbrltype": "domainItemType" }, "us-gaap_SignificantAccountingPoliciesTextBlock": { "auth_ref": [ "r88", "r94" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for all significant accounting policies of the reporting entity.", "label": "Significant Accounting Policies [Text Block]", "terseLabel": "Basis of Presentation and Significant Accounting Policies" } } }, "localname": "SignificantAccountingPoliciesTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_StatementClassOfStockAxis": { "auth_ref": [ "r19", "r20", "r21", "r89", "r90", "r114", "r115", "r116", "r118", "r120", "r126", "r127", "r128", "r165", "r210", "r214", "r215", "r216", "r219", "r220", "r230", "r231", "r234", "r235", "r237", "r349", "r487" ], "lang": { "en-us": { "role": { "documentation": "Information by the different classes of stock of the entity.", "label": "Statement Class Of Stock [Axis]", "terseLabel": "Class of Stock" } } }, "localname": "StatementClassOfStockAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "stringItemType" }, "us-gaap_StatementEquityComponentsAxis": { "auth_ref": [ "r2", "r46", "r62", "r63", "r64", "r95", "r96", "r97", "r100", "r107", "r109", "r125", "r172", "r237", "r244", "r283", "r284", "r285", "r300", "r301", "r337", "r360", "r361", "r362", "r363", "r364", "r365", "r451", "r452", "r453", "r500" ], "lang": { "en-us": { "role": { "documentation": "Information by component of equity.", "label": "Statement Equity Components [Axis]", "terseLabel": "Accumulated Other Comprehensive (Income) Loss" } } }, "localname": "StatementEquityComponentsAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "stringItemType" }, "us-gaap_StatementLineItems": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Statement [Line Items]", "terseLabel": "Statement [Line Items]" } } }, "localname": "StatementLineItems", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsTables", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "stringItemType" }, "us-gaap_StatementOfCashFlowsAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement Of Cash Flows [Abstract]" } } }, "localname": "StatementOfCashFlowsAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfFinancialPositionAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement Of Financial Position [Abstract]" } } }, "localname": "StatementOfFinancialPositionAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementOfStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Statement Of Stockholders Equity [Abstract]" } } }, "localname": "StatementOfStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementTable": { "auth_ref": [ "r95", "r96", "r97", "r125", "r418" ], "lang": { "en-us": { "role": { "documentation": "Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.", "label": "Statement [Table]", "terseLabel": "Statement [Table]" } } }, "localname": "StatementTable", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsTables", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "stringItemType" }, "us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities": { "auth_ref": [ "r45", "r223", "r237", "r238", "r244" ], "lang": { "en-us": { "role": { "documentation": "Number of shares issued during the period as a result of the conversion of convertible securities.", "label": "Stock Issued During Period Shares Conversion Of Convertible Securities", "terseLabel": "Conversion of convertible preferred stock to common stock, Shares" } } }, "localname": "StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesNewIssues": { "auth_ref": [ "r20", "r21", "r237", "r244" ], "lang": { "en-us": { "role": { "documentation": "Number of new stock issued during the period.", "label": "Stock Issued During Period Shares New Issues", "terseLabel": "Issuance of common stock upon initial public offering, net of issuance costs, Shares" } } }, "localname": "StockIssuedDuringPeriodSharesNewIssues", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": { "auth_ref": [ "r20", "r21", "r237", "r244", "r268" ], "lang": { "en-us": { "role": { "documentation": "Number of share options (or share units) exercised during the current period.", "label": "Stock Issued During Period Shares Stock Options Exercised", "negatedLabel": "Number of shares, exercised", "terseLabel": "Issuance of common stock upon exercise of stock option, net of repurchase, Shares" } } }, "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationSummaryOfStockOptionActivityDetails", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities": { "auth_ref": [ "r46", "r237", "r244" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "The gross value of stock issued during the period upon the conversion of convertible securities.", "label": "Stock Issued During Period Value Conversion Of Convertible Securities", "terseLabel": "Conversion of convertible preferred stock to common stock" } } }, "localname": "StockIssuedDuringPeriodValueConversionOfConvertibleSecurities", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueNewIssues": { "auth_ref": [ "r20", "r21", "r237", "r244" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.", "label": "Stock Issued During Period Value New Issues", "terseLabel": "Issuance of common stock upon initial public offering, net of issuance costs" } } }, "localname": "StockIssuedDuringPeriodValueNewIssues", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised": { "auth_ref": [ "r46", "r237", "r244" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Value of stock issued as a result of the exercise of stock options.", "label": "Stock Issued During Period Value Stock Options Exercised", "terseLabel": "Issuance of common stock upon exercise of stock option, net of repurchase" } } }, "localname": "StockIssuedDuringPeriodValueStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.", "label": "Stock Repurchase Program Number Of Shares Authorized To Be Repurchased", "terseLabel": "Shares subject to repurchase" } } }, "localname": "StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_StockholdersEquity": { "auth_ref": [ "r21", "r25", "r26", "r90", "r148", "r165", "r349", "r384" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited": { "order": 10030.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.", "label": "Stockholders Equity", "periodEndLabel": "Ending Balance", "periodStartLabel": "Beginning Balance", "totalLabel": "Total stockholders\u2019 equity" } } }, "localname": "StockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Stockholders Equity [Abstract]", "terseLabel": "Stockholders\u2019 equity" } } }, "localname": "StockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDBALANCESHEETSUnaudited" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventMember": { "auth_ref": [ "r366", "r385" ], "lang": { "en-us": { "role": { "documentation": "Identifies event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event [Member]", "terseLabel": "Subsequent Event" } } }, "localname": "SubsequentEventMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventTypeAxis": { "auth_ref": [ "r366", "r385" ], "lang": { "en-us": { "role": { "documentation": "Information by event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event Type [Axis]", "terseLabel": "Subsequent Event Type" } } }, "localname": "SubsequentEventTypeAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventTypeDomain": { "auth_ref": [ "r366", "r385" ], "lang": { "en-us": { "role": { "documentation": "Event that occurred after the balance sheet date but before financial statements are issued or available to be issued.", "label": "Subsequent Event Type [Domain]", "terseLabel": "Subsequent Event Type" } } }, "localname": "SubsequentEventTypeDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsidiarySaleOfStockAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Information by type of sale of the entity's stock.", "label": "Subsidiary Sale Of Stock [Axis]", "terseLabel": "Sale of Stock" } } }, "localname": "SubsidiarySaleOfStockAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureOrganizationAndDescriptionOfBusinessAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SupplementalBalanceSheetDisclosuresTextBlock": { "auth_ref": [ "r50" ], "lang": { "en-us": { "role": { "documentation": "The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity.", "label": "Supplemental Balance Sheet Disclosures [Text Block]", "terseLabel": "Balance Sheet Components" } } }, "localname": "SupplementalBalanceSheetDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBalanceSheetComponents" ], "xbrltype": "textBlockItemType" }, "us-gaap_TemporaryEquityCarryingAmountAttributableToParent": { "auth_ref": [ "r210", "r214", "r215", "r216", "r219", "r220" ], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Carrying amount, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.", "label": "Temporary Equity Carrying Amount Attributable To Parent", "periodEndLabel": "Temporary Equity, Ending Balance", "periodStartLabel": "Temporary Equity, Beginning Balance" } } }, "localname": "TemporaryEquityCarryingAmountAttributableToParent", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "monetaryItemType" }, "us-gaap_TemporaryEquitySharesOutstanding": { "auth_ref": [ "r18" ], "lang": { "en-us": { "role": { "documentation": "The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.", "label": "Temporary Equity Shares Outstanding", "periodEndLabel": "Temporary Equity, Ending Balance, Shares", "periodStartLabel": "Temporary Equity, Beginning Balance, Shares" } } }, "localname": "TemporaryEquitySharesOutstanding", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "sharesItemType" }, "us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues": { "auth_ref": [], "crdr": "credit", "lang": { "en-us": { "role": { "documentation": "Value of new stock classified as temporary equity issued during the period.", "label": "Temporary Equity Stock Issued During Period Value New Issues", "terseLabel": "Temporary equity, Issuance of Series B convertible preferred stock, net of issuance costs" } } }, "localname": "TemporaryEquityStockIssuedDuringPeriodValueNewIssues", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFCONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITYDEFICIT" ], "xbrltype": "monetaryItemType" }, "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain": { "auth_ref": [ "r158", "r159", "r162", "r163", "r164", "r224", "r236", "r328", "r386", "r387", "r388", "r389", "r390", "r391", "r392", "r393", "r394", "r395", "r396", "r397", "r398", "r399", "r400", "r401", "r402", "r403", "r404", "r405", "r406", "r407", "r408", "r409", "r410", "r411", "r412", "r413", "r414", "r415", "r487", "r488", "r489", "r490", "r491", "r492", "r493" ], "lang": { "en-us": { "role": { "documentation": "Instrument or contract that imposes a contractual obligation to deliver cash or another financial instrument or to exchange other financial instruments on potentially unfavorable terms and conveys a contractual right to receive cash or another financial instrument or to exchange other financial instruments on potentially favorable terms.", "label": "Transfers And Servicing Of Financial Instruments Types Of Financial Instruments [Domain]", "terseLabel": "Financial Instruments" } } }, "localname": "TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_TypeOfAdoptionMember": { "auth_ref": [ "r0", "r1", "r2", "r3", "r4", "r99", "r100", "r101", "r102", "r111", "r149", "r150", "r169", "r170", "r171", "r172", "r174", "r175", "r209", "r279", "r280", "r281", "r282", "r283", "r284", "r285", "r286", "r298", "r299", "r300", "r301", "r329", "r330", "r331", "r332", "r333", "r334", "r335", "r336", "r337", "r338", "r339", "r350", "r351", "r353", "r354", "r355", "r356", "r357", "r358", "r381", "r419", "r420", "r421", "r449", "r450", "r451", "r452", "r453", "r454", "r455", "r456", "r457", "r458", "r459", "r460", "r496", "r497", "r498", "r499", "r500" ], "lang": { "en-us": { "role": { "documentation": "Amendment to accounting standards.", "label": "Type Of Adoption [Member]", "terseLabel": "Accounting Standards Update" } } }, "localname": "TypeOfAdoptionMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPolicesAdditionalInformationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_TypeOfArrangementAxis": { "auth_ref": [ "r312" ], "lang": { "en-us": { "role": { "documentation": "Information by collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations.", "label": "Type Of Arrangement [Axis]", "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative" } } }, "localname": "TypeOfArrangementAxis", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureCRISPRCollaborationAgreementAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetails", "http://nkartatx.com/20210930/taxonomy/role/DisclosureLeasesAdditionalInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_USGovernmentAgenciesDebtSecuritiesMember": { "auth_ref": [ "r93", "r248", "r432" ], "lang": { "en-us": { "role": { "documentation": "Debentures, notes, and other debt securities issued by US government agencies, for example, but not limited to, Government National Mortgage Association (GNMA or Ginnie Mae). Excludes US treasury securities and debt issued by government-sponsored Enterprises (GSEs), for example, but is not limited to, Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac), Federal National Mortgage Association (FNMA or Fannie Mae), and the Federal Home Loan Bank (FHLB).", "label": "U S Government Agencies Debt Securities [Member]", "terseLabel": "U.S. Government Securities" } } }, "localname": "USGovernmentAgenciesDebtSecuritiesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsSummaryOfFairValueOfFinancialInstrumentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember": { "auth_ref": [ "r432" ], "lang": { "en-us": { "role": { "documentation": "This category includes information about debt issued by US Government Corporations and Agencies. Investments in such US Government Corporations may include debt securities issued by the Government National Mortgage Association (Ginnie Mae) and by the Federal National Mortgage Association (Fannie Mae) and the Federal Home Loan Mortgage Corporation (Freddie Mac).", "label": "U S Government Corporations And Agencies Securities [Member]", "terseLabel": "U.S. Government Securities" } } }, "localname": "USGovernmentCorporationsAndAgenciesSecuritiesMember", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureFairValueOfFinancialInstrumentsScheduleOfShortTermInvestmentsAccountedAsAvailableForSaleSecuritiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_UseOfEstimates": { "auth_ref": [ "r129", "r130", "r131", "r132", "r133", "r134", "r135" ], "lang": { "en-us": { "role": { "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.", "label": "Use Of Estimates", "terseLabel": "Use of Estimates" } } }, "localname": "UseOfEstimates", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureBasisOfPresentationAndSignificantAccountingPoliciesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted": { "auth_ref": [], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareComputationOfBasicAndDilutedNetLossPerShareDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "lang": { "en-us": { "role": { "documentation": "Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).", "label": "Weighted Average Number Of Share Outstanding Basic And Diluted", "terseLabel": "Weighted average shares used to compute net loss per share, basic and diluted", "totalLabel": "Weighted average shares used to compute net loss per share, basic and diluted" } } }, "localname": "WeightedAverageNumberOfShareOutstandingBasicAndDiluted", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareComputationOfBasicAndDilutedNetLossPerShareDetails", "http://nkartatx.com/20210930/taxonomy/role/StatementCONDENSEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSUnaudited" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfSharesIssuedBasic": { "auth_ref": [ "r112", "r113" ], "calculation": { "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareComputationOfBasicAndDilutedNetLossPerShareDetails": { "order": 10010.0, "parentTag": "us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "This element represents the weighted average total number of shares issued throughout the period including the first (beginning balance outstanding) and last (ending balance outstanding) day of the period before considering any reductions (for instance, shares held in treasury) to arrive at the weighted average number of shares outstanding. Weighted average relates to the portion of time within a reporting period that common shares have been issued and outstanding to the total time in that period. Such concept is used in determining the weighted average number of shares outstanding for purposes of calculating earnings per share (basic).", "label": "Weighted Average Number Of Shares Issued Basic", "terseLabel": "Weighted average common shares outstanding" } } }, "localname": "WeightedAverageNumberOfSharesIssuedBasic", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareComputationOfBasicAndDilutedNetLossPerShareDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Weighted Average Number Of Shares Outstanding [Abstract]", "terseLabel": "Denominator:" } } }, "localname": "WeightedAverageNumberOfSharesOutstandingAbstract", "nsuri": "http://fasb.org/us-gaap/2021-01-31", "presentation": [ "http://nkartatx.com/20210930/taxonomy/role/DisclosureNetLossPerShareComputationOfBasicAndDilutedNetLossPerShareDetails" ], "xbrltype": "stringItemType" } }, "unitCount": 6 } }, "std_ref": { "r0": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "105", "URI": "http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695" }, "r1": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "105", "URI": "http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695" }, "r10": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765" }, "r100": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(3)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794" }, "r101": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(4)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794" }, "r102": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794" }, "r103": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794" }, "r104": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794" }, "r105": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794" }, "r106": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794" }, "r107": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794" }, "r108": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22658-107794" }, "r109": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22663-107794" }, "r11": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6787-107765" }, "r110": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=122038215&loc=d3e31010-122693" }, "r111": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 11.M.Q2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=122038215&loc=d3e31137-122693" }, "r112": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256" }, "r113": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e2646-109256" }, "r114": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1252-109256" }, "r115": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1278-109256" }, "r116": { "Name": "Accounting Standards Codification", "Paragraph": "55", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e2626-109256" }, "r117": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256" }, "r118": { "Name": "Accounting Standards Codification", "Paragraph": "60B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256" }, "r119": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1337-109256" }, "r12": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6801-107765" }, "r120": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257" }, "r121": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257" }, "r122": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257" }, "r123": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537" }, "r124": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "260", "URI": "http://asc.fasb.org/topic&trid=2144383" }, "r125": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "272", "URI": "http://asc.fasb.org/extlink&oid=125520817&loc=d3e70191-108054" }, "r126": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "272", "URI": "http://asc.fasb.org/extlink&oid=125520817&loc=d3e70229-108054" }, "r127": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "272", "URI": "http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055" }, "r128": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "272", "URI": "http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055" }, "r129": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r13": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6812-107765" }, "r130": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r131": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592" }, "r132": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592" }, "r133": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592" }, "r134": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592" }, "r135": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592" }, "r136": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599" }, "r137": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r138": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r139": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599" }, "r14": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(13))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r140": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599" }, "r141": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599" }, "r142": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599" }, "r143": { "Name": "Accounting Standards Codification", "Paragraph": "31", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599" }, "r144": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599" }, "r145": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599" }, "r146": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599" }, "r147": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599" }, "r148": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 4.E)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=122038336&loc=d3e74512-122707" }, "r149": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=124402435&loc=SL124402458-218513" }, "r15": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(14))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r150": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=124402435&loc=SL124402458-218513" }, "r151": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(d)(1)", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=124402435&loc=SL124402458-218513" }, "r152": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562" }, "r153": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=124260329&loc=d3e26626-111562" }, "r154": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563" }, "r155": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(aa)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563" }, "r156": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563" }, "r157": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563" }, "r158": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563" }, "r159": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=SL120269820-111563" }, "r16": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(17))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r160": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27357-111563" }, "r161": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "320", "URI": "http://asc.fasb.org/topic&trid=2196928" }, "r162": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "321", "URI": "http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714" }, "r163": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "321", "URI": "http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714" }, "r164": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "321", "URI": "http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714" }, "r165": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r166": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL120254519-210437" }, "r167": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL120320025-210437" }, "r168": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL120320025-210437" }, "r169": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r17": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(2))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r170": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r171": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r172": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r173": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(1)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r174": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(3)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r175": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(4)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437" }, "r176": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919244-210447" }, "r177": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447" }, "r178": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919253-210447" }, "r179": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447" }, "r18": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(27)(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r180": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447" }, "r181": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454" }, "r182": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455" }, "r183": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922895-210455" }, "r184": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455" }, "r185": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "30", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456" }, "r186": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "05", "SubTopic": "10", "Topic": "340", "URI": "http://asc.fasb.org/extlink&oid=123349782&loc=d3e5879-108316" }, "r187": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "340", "URI": "http://asc.fasb.org/extlink&oid=6387103&loc=d3e6435-108320" }, "r188": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r189": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r19": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(27))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r190": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r191": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r192": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230" }, "r193": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "420", "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869" }, "r194": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308" }, "r195": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "440", "URI": "http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308" }, "r196": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "440", "URI": "http://asc.fasb.org/topic&trid=2144648" }, "r197": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349" }, "r198": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14615-108349" }, "r199": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14394-108349" }, "r2": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "105", "URI": "http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695" }, "r20": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(28))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r200": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349" }, "r201": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14453-108349" }, "r202": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14472-108349" }, "r203": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349" }, "r204": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "450", "URI": "http://asc.fasb.org/topic&trid=2127136" }, "r205": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=124440162&loc=d3e12021-110248" }, "r206": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=124440162&loc=d3e12053-110248" }, "r207": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=124440162&loc=d3e12069-110248" }, "r208": { "Name": "Accounting Standards Codification", "Paragraph": "12A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=99376301&loc=SL5988623-112600" }, "r209": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S65", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359872&loc=SL124427846-239511" }, "r21": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(29))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r210": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(i))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r211": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(ii))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r212": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(iii)(A))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r213": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(iii))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r214": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(4)(iv))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r215": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-01(a)(5))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756" }, "r216": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(4)(i))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r217": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(4)(iii)(A))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r218": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(4)(iii)(B))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r219": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(4)(iv))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r22": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r220": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.13-02(a)(5))", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756" }, "r221": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611" }, "r222": { "Name": "Accounting Standards Codification", "Paragraph": "1D", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611" }, "r223": { "Name": "Accounting Standards Codification", "Paragraph": "1E", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611" }, "r224": { "Name": "Accounting Standards Codification", "Paragraph": "1I", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611" }, "r225": { "Name": "Accounting Standards Codification", "Paragraph": "69B", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612" }, "r226": { "Name": "Accounting Standards Codification", "Paragraph": "69C", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612" }, "r227": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(CFRR 211.02)", "Topic": "480", "URI": "http://asc.fasb.org/extlink&oid=122040564&loc=d3e177068-122764" }, "r228": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=65888546&loc=d3e21300-112643" }, "r229": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21553-112644" }, "r23": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(3))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r230": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r231": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r232": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r233": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r234": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644" }, "r235": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644" }, "r236": { "Name": "Accounting Standards Codification", "Paragraph": "18", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644" }, "r237": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644" }, "r238": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644" }, "r239": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21484-112644" }, "r24": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30)(a)(4))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r240": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21488-112644" }, "r241": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21506-112644" }, "r242": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21521-112644" }, "r243": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21538-112644" }, "r244": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.3-04)", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770" }, "r245": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045" }, "r246": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=123410239&loc=SL49130690-203046-203046" }, "r247": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(i)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r248": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(ii)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r249": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(01)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r25": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(30))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r250": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r251": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)(A)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r252": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)(B)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r253": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(02)(C)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r254": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(iv)(03)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920" }, "r255": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921" }, "r256": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(d)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947" }, "r257": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "80", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948" }, "r258": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "35", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=123468992&loc=d3e4534-113899" }, "r259": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901" }, "r26": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(31))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r260": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901" }, "r261": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901" }, "r262": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(3)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r263": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a),(g)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r264": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r265": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r266": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(i)-(ii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r267": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r268": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r269": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(3)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r27": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(32))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r270": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r271": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r272": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r273": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r274": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r275": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(1)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r276": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r277": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901" }, "r278": { "Name": "Accounting Standards Codification", "Paragraph": "2A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=SL79508275-113901" }, "r279": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r28": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(7))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r280": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r281": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r282": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r283": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r284": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(f)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r285": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(f)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r286": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(g)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333" }, "r287": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 14.F)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809" }, "r288": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=122142933&loc=d3e11149-113907" }, "r289": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=122142933&loc=d3e11178-113907" }, "r29": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(8))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r290": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "718", "URI": "http://asc.fasb.org/topic&trid=2228938" }, "r291": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "730", "URI": "http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373" }, "r292": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "730", "URI": "http://asc.fasb.org/extlink&oid=6420387&loc=d3e23199-108380" }, "r293": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "730", "URI": "http://asc.fasb.org/extlink&oid=6420387&loc=d3e23221-108380" }, "r294": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32672-109319" }, "r295": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319" }, "r296": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319" }, "r297": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319" }, "r298": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277" }, "r299": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277" }, "r3": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "105", "URI": "http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695" }, "r30": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.1)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r300": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(2)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277" }, "r301": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(d)(3)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277" }, "r302": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)(3)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277" }, "r303": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB TOPIC 6.I.5.Q1)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817" }, "r304": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB TOPIC 6.I.7)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817" }, "r305": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 11.C)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817" }, "r306": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=123586238&loc=d3e38679-109324" }, "r307": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "270", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338" }, "r308": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331" }, "r309": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "740", "URI": "http://asc.fasb.org/topic&trid=2144680" }, "r31": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.13)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r310": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "808", "URI": "http://asc.fasb.org/extlink&oid=6931272&loc=SL5834143-161434" }, "r311": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "808", "URI": "http://asc.fasb.org/extlink&oid=6931272&loc=SL5834143-161434" }, "r312": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "808", "URI": "http://asc.fasb.org/extlink&oid=6931272&loc=SL5834143-161434" }, "r313": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "808", "URI": "http://asc.fasb.org/topic&trid=5833765" }, "r314": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123454820&loc=SL4569616-111683" }, "r315": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123454820&loc=SL4569643-111683" }, "r316": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988" }, "r317": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988" }, "r318": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r319": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r32": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.14)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r320": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(3)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r321": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c),(3)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r322": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bb)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685" }, "r323": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685" }, "r324": { "Name": "Accounting Standards Codification", "Paragraph": "4J", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=120409616&loc=SL4591551-111686" }, "r325": { "Name": "Accounting Standards Codification", "Paragraph": "4K", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=120409616&loc=SL4591552-111686" }, "r326": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "810", "URI": "http://asc.fasb.org/topic&trid=2197479" }, "r327": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=121483254&loc=SL120254523-199619" }, "r328": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(f)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123477628&loc=d3e90205-114008" }, "r329": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(a)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r33": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.17)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r330": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(a)(2)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r331": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(a)(3)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r332": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(b)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r333": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(b)(2)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r334": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(c)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r335": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(d)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r336": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)(2)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r337": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)(3)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r338": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)(4)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r339": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011" }, "r34": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r340": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r341": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r342": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bb)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r343": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)(2)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r344": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r345": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r346": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258" }, "r347": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19279-110258" }, "r348": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123594938&loc=d3e13467-108611" }, "r349": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612" }, "r35": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r350": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL120254526-165497" }, "r351": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL120254526-165497" }, "r352": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL120254526-165497" }, "r353": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL121967933-165497" }, "r354": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL121967933-165497" }, "r355": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL121967933-165497" }, "r356": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(c)(2)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL121967933-165497" }, "r357": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL122642865-165497" }, "r358": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=123597120&loc=SL122642865-165497" }, "r359": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "230", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=123444420&loc=d3e33268-110906" }, "r36": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19,20)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r360": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900" }, "r361": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r362": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r363": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(c)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r364": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900" }, "r365": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901" }, "r366": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32618-110901" }, "r367": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123341672&loc=SL120154346-209984" }, "r368": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977" }, "r369": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977" }, "r37": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19-26)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r370": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977" }, "r371": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918643-209977" }, "r372": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(1)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980" }, "r373": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(3)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980" }, "r374": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980" }, "r375": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(1)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r376": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(3)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r377": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(4)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980" }, "r378": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980" }, "r379": { "Name": "Accounting Standards Codification", "Paragraph": "53", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971" }, "r38": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.2)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r380": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/subtopic&trid=77888251" }, "r381": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "848", "URI": "http://asc.fasb.org/extlink&oid=122150657&loc=SL122150809-237846" }, "r382": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "852", "URI": "http://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765" }, "r383": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "852", "URI": "http://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765" }, "r384": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "852", "URI": "http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766" }, "r385": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "855", "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662" }, "r386": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)(i)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r387": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)(ii)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r388": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r389": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r39": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.20)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r390": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r391": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r392": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r393": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r394": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719" }, "r395": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r396": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r397": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r398": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719" }, "r399": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728" }, "r4": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "105", "URI": "http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695" }, "r40": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.21)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r400": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729" }, "r401": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746" }, "r402": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746" }, "r403": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746" }, "r404": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(4)(i)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746" }, "r405": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r406": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r407": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r408": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(4)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r409": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(5)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r41": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.24)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r410": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(6)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r411": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(a)(7)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r412": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(b)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r413": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r414": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r415": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "50", "Subparagraph": "(e)(3)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746" }, "r416": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "910", "URI": "http://asc.fasb.org/extlink&oid=123353855&loc=SL119991595-234733" }, "r417": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "25", "SubTopic": "730", "Topic": "912", "URI": "http://asc.fasb.org/extlink&oid=6472174&loc=d3e58812-109433" }, "r418": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 11.L)", "Topic": "924", "URI": "http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856" }, "r419": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r42": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.25)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r420": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r421": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "926", "URI": "http://asc.fasb.org/extlink&oid=120154821&loc=SL120154904-197079" }, "r422": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(1)(a))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r423": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(11))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r424": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(23))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r425": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(4))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r426": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(5))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r427": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(6))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r428": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03.17)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878" }, "r429": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(22))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r43": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.28,29)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r430": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(26))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260" }, "r431": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "235", "Subparagraph": "(SX 210.9-05(b)(2))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884" }, "r432": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "320", "Subparagraph": "(b)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=d3e62557-112803" }, "r433": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "360", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=124429447&loc=SL124453093-239630" }, "r434": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(1)(g))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r435": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(12))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r436": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(2))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r437": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(23)(a)(3))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r438": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r439": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(25))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r44": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.29)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r440": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(8))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r441": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03.(a),19)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910" }, "r442": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(18))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r443": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(22))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r444": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(9))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263" }, "r445": { "Name": "Accounting Standards Codification", "Paragraph": "4H", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671331-158438" }, "r446": { "Name": "Accounting Standards Codification", "Paragraph": "7A", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(d)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124506351&loc=SL117782755-158439" }, "r447": { "Name": "Accounting Standards Codification", "Paragraph": "13H", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Subparagraph": "(a)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124504033&loc=SL117783719-158441" }, "r448": { "Name": "Accounting Standards Codification", "Paragraph": "29F", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124504033&loc=SL117819544-158441" }, "r449": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(a)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r45": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.29-30)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r450": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(b)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r451": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(e)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r452": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r453": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(f)(2)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r454": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r455": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(i)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r456": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(ii)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r457": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(iii)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r458": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(g)(2)(iv)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r459": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(h)(1)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r46": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.29-31)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r460": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "40", "Subparagraph": "(h)(2)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641" }, "r461": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "80", "Subparagraph": "(e)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=124508989&loc=d3e19393-158473" }, "r462": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 1))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r463": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 6))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r464": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 7))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r465": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 1))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r466": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 6))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r467": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 7))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r468": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 1))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r469": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 6))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r47": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.8)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r470": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 7))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010" }, "r471": { "Name": "Accounting Standards Codification", "Paragraph": "5D", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-13D(Column B)(Footnote 2))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=SL120429264-123010" }, "r472": { "Name": "Accounting Standards Codification", "Paragraph": "5D", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-13D(Column C)(Footnote 2))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=SL120429264-123010" }, "r473": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-15(Column A))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010" }, "r474": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-15(Column B))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010" }, "r475": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-15(Column C))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010" }, "r476": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-15(Column D))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010" }, "r477": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "210", "Topic": "954", "URI": "http://asc.fasb.org/extlink&oid=120413173&loc=SL116631458-115580" }, "r478": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "440", "Subparagraph": "(a)", "Topic": "954", "URI": "http://asc.fasb.org/extlink&oid=6491277&loc=d3e6429-115629" }, "r479": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "310", "Subparagraph": "(c)", "Topic": "976", "URI": "http://asc.fasb.org/extlink&oid=6497875&loc=d3e22274-108663" }, "r48": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.8,17)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r480": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "310", "Subparagraph": "(b)", "Topic": "978", "URI": "http://asc.fasb.org/extlink&oid=123360121&loc=d3e27327-108691" }, "r481": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "985", "URI": "http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756" }, "r482": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b" }, "r483": { "Name": "Exchange Act", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "d1-1" }, "r484": { "Name": "Form 10-Q", "Number": "240", "Publisher": "SEC", "Section": "308", "Subsection": "a" }, "r485": { "Name": "Forms 10-K, 10-Q, 20-F", "Number": "240", "Publisher": "SEC", "Section": "13", "Subsection": "a-1" }, "r486": { "Name": "Regulation 12B", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-2" }, "r487": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(a)", "Publisher": "SEC", "Section": "1402" }, "r488": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(b)", "Publisher": "SEC", "Section": "1402", "Subparagraph": "(1)" }, "r489": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(b)", "Publisher": "SEC", "Section": "1402", "Subparagraph": "(2)" }, "r49": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.9)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682" }, "r490": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(b)", "Publisher": "SEC", "Section": "1402", "Subparagraph": "(3)" }, "r491": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(c)", "Publisher": "SEC", "Section": "1402", "Subparagraph": "(2)(i)" }, "r492": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(c)", "Publisher": "SEC", "Section": "1402", "Subparagraph": "(2)(ii)" }, "r493": { "Name": "Regulation S-K (SK)", "Number": "229", "Paragraph": "(c)", "Publisher": "SEC", "Section": "1402", "Subparagraph": "(2)(iii)" }, "r494": { "Name": "Regulation S-T", "Number": "232", "Publisher": "SEC", "Section": "405" }, "r495": { "Name": "Securities Act", "Number": "7A", "Publisher": "SEC", "Section": "B", "Subsection": "2" }, "r496": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "848" }, "r497": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "848" }, "r498": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "848" }, "r499": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)(3)(iii)(01)", "Topic": "848" }, "r5": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760" }, "r50": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "210", "URI": "http://asc.fasb.org/topic&trid=2122208" }, "r500": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "65", "SubTopic": "10", "Subparagraph": "(a)(3)(iii)(03)", "Topic": "848" }, "r51": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580" }, "r52": { "Name": "Accounting Standards Codification", "Paragraph": "10A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580" }, "r53": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580" }, "r54": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e681-108580" }, "r55": { "Name": "Accounting Standards Codification", "Paragraph": "14A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580" }, "r56": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580" }, "r57": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580" }, "r58": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580" }, "r59": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580" }, "r6": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "205", "URI": "http://asc.fasb.org/topic&trid=2122149" }, "r60": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580" }, "r61": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e557-108580" }, "r62": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124442407-227067" }, "r63": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124442411-227067" }, "r64": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124452729-227067" }, "r65": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(20))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r66": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(24))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r67": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(4))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r68": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.4)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r69": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.7(a),(b))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r7": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765" }, "r70": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.7)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r71": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.8)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r72": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.9)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227" }, "r73": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585" }, "r74": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585" }, "r75": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585" }, "r76": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585" }, "r77": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3000-108585" }, "r78": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3521-108585" }, "r79": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585" }, "r8": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765" }, "r80": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585" }, "r81": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585" }, "r82": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585" }, "r83": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3044-108585" }, "r84": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586" }, "r85": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4313-108586" }, "r86": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4332-108586" }, "r87": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=SL98516268-108586" }, "r88": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=123372394&loc=d3e18726-107790" }, "r89": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(d))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r9": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765" }, "r90": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(g)(1)(ii))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r91": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(h)(2))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r92": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(h))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r93": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(m)(1)(ii)(A))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690" }, "r94": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "235", "URI": "http://asc.fasb.org/topic&trid=2122369" }, "r95": { "Name": "Accounting Standards Codification", "Paragraph": "23", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21914-107793" }, "r96": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21930-107793" }, "r97": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21711-107793" }, "r98": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794" }, "r99": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(2)", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794" } }, "version": "2.1" }