3.22.2 html 360 353 1 false 98 0 false 6 false false R1.htm 100000 - Document - Document and Entity Information Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 100010 - Statement - Condensed Consolidated Balance Sheets Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets Condensed Consolidated Balance Sheets Statements 2 false false R3.htm 100020 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical Condensed Consolidated Balance Sheets (Parenthetical) Statements 3 false false R4.htm 100030 - Statement - Condensed Consolidated Statements of Income (unaudited) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/StatementCondensedConsolidatedStatementsOfIncomeUnaudited Condensed Consolidated Statements of Income (unaudited) Statements 4 false false R5.htm 100040 - Statement - Condensed Consolidated Statements of Comprehensive Income (unaudited) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveIncomeUnaudited Condensed Consolidated Statements of Comprehensive Income (unaudited) Statements 5 false false R6.htm 100050 - Statement - Condensed Consolidated Statements of Stockholders' Equity (unaudited) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquityUnaudited Condensed Consolidated Statements of Stockholders' Equity (unaudited) Statements 6 false false R7.htm 100060 - Statement - Condensed Consolidated Statements of Stockholders' Equity (unaudited) (Parenthetical) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquityUnauditedParenthetical Condensed Consolidated Statements of Stockholders' Equity (unaudited) (Parenthetical) Statements 7 false false R8.htm 100070 - Statement - Condensed Consolidated Statements of Cash Flows (unaudited) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlowsUnaudited Condensed Consolidated Statements of Cash Flows (unaudited) Statements 8 false false R9.htm 100080 - Disclosure - Overview and Basis of Presentation Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureOverviewAndBasisOfPresentation Overview and Basis of Presentation Notes 9 false false R10.htm 100090 - Disclosure - Summary of Significant Accounting Policies Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 10 false false R11.htm 100100 - Disclosure - Equity and Debt Securities Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureEquityAndDebtSecurities1 Equity and Debt Securities Notes 11 false false R12.htm 100110 - Disclosure - Fair Value Measurements Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureFairValueMeasurements Fair Value Measurements Notes 12 false false R13.htm 100120 - Disclosure - Fixed Assets Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureFixedAssets Fixed Assets Notes 13 false false R14.htm 100130 - Disclosure - Other Current Assets Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureOtherCurrentAssets Other Current Assets Notes 14 false false R15.htm 100140 - Disclosure - Reporting Segment and Geographic Information Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureReportingSegmentAndGeographicInformation Reporting Segment and Geographic Information Notes 15 false false R16.htm 100150 - Disclosure - Debt, Commitments and Contingencies Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureDebtCommitmentsAndContingencies Debt, Commitments and Contingencies Notes 16 false false R17.htm 100160 - Disclosure - Leases Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureLeases Leases Notes 17 false false R18.htm 100170 - Disclosure - Equity-Based Compensation Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureEquityBasedCompensation Equity-Based Compensation Notes 18 false false R19.htm 100180 - Disclosure - Provision for Income Taxes Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureProvisionForIncomeTaxes Provision for Income Taxes Notes 19 false false R20.htm 100190 - Disclosure - Income per Share Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureIncomePerShare Income per Share Notes 20 false false R21.htm 100200 - Disclosure - Related Parties Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureRelatedParties Related Parties Notes 21 false false R22.htm 100220 - Disclosure - Goodwill and Acquisition-Related Intangibles Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureGoodwillAndAcquisitionRelatedIntangibles Goodwill and Acquisition-Related Intangibles Notes 22 false false R23.htm 100230 - Disclosure - Business Combinations Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureBusinessCombinations Business Combinations Notes 23 false false R24.htm 100240 - Disclosure - Stock Repurchase Program Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureStockRepurchaseProgram1 Stock Repurchase Program Notes 24 false false R25.htm 100250 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies 25 false false R26.htm 100260 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesTables Summary of Significant Accounting Policies (Tables) Tables http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies 26 false false R27.htm 100270 - Disclosure - Equity and Debt Securities (Tables) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureEquityAndDebtSecuritiesTables Equity and Debt Securities (Tables) Tables http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureEquityAndDebtSecurities1 27 false false R28.htm 100280 - Disclosure - Fair Value Measurements (Tables) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureFairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureFairValueMeasurements 28 false false R29.htm 100290 - Disclosure - Fixed Assets (Tables) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureFixedAssetsTables Fixed Assets (Tables) Tables http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureFixedAssets 29 false false R30.htm 100300 - Disclosure - Other Current Assets (Tables) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureOtherCurrentAssetsTables Other Current Assets (Tables) Tables http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureOtherCurrentAssets 30 false false R31.htm 100310 - Disclosure - Reporting Segment and Geographic Information (Tables) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureReportingSegmentAndGeographicInformationTables Reporting Segment and Geographic Information (Tables) Tables http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureReportingSegmentAndGeographicInformation 31 false false R32.htm 100320 - Disclosure - Leases (Tables) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureLeasesTables Leases (Tables) Tables http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureLeases 32 false false R33.htm 100330 - Disclosure - Equity-Based Compensation (Tables) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureEquityBasedCompensationTables Equity-Based Compensation (Tables) Tables http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureEquityBasedCompensation 33 false false R34.htm 100340 - Disclosure - Income per Share (Tables) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureIncomePerShareTables Income per Share (Tables) Tables http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureIncomePerShare 34 false false R35.htm 100350 - Disclosure - Goodwill and Acquisition-Related Intangibles (Tables) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureGoodwillAndAcquisitionRelatedIntangiblesTables Goodwill and Acquisition-Related Intangibles (Tables) Tables http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureGoodwillAndAcquisitionRelatedIntangibles 35 false false R36.htm 100360 - Disclosure - Business Combinations (Tables) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureBusinessCombinationsTables Business Combinations (Tables) Tables http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureBusinessCombinations 36 false false R37.htm 100370 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetails Summary of Significant Accounting Policies - Additional Information (Details) Details 37 false false R38.htm 100380 - Disclosure - Summary of Significant Accounting Policies - Summary of Revenue from Contracts with Customers by Payor Type (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfRevenueFromContractsWithCustomersByPayorTypeDetails Summary of Significant Accounting Policies - Summary of Revenue from Contracts with Customers by Payor Type (Details) Details 38 false false R39.htm 100390 - Disclosure - Equity and Debt Securities - Summary of Equity -Based Compensation (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureEquityAndDebtSecuritiesSummaryOfEquityBasedCompensationDetails Equity and Debt Securities - Summary of Equity -Based Compensation (Details) Details 39 false false R40.htm 100400 - Disclosure - Equity and Debt Securities - Additional Information (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureEquityAndDebtSecuritiesAdditionalInformationDetails Equity and Debt Securities - Additional Information (Details) Details 40 false false R41.htm 100410 - Disclosure - Fair Value Measurements - Information about Financial Assets Measured at Fair Value on Recurring Basis Based on Three-Tier Fair Value Hierarchy (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureFairValueMeasurementsInformationAboutFinancialAssetsMeasuredAtFairValueOnRecurringBasisBasedOnThreeTierFairValueHierarchyDetails Fair Value Measurements - Information about Financial Assets Measured at Fair Value on Recurring Basis Based on Three-Tier Fair Value Hierarchy (Details) Details 41 false false R42.htm 100420 - Disclosure - Fair Value Measurements - Additional Information (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureFairValueMeasurementsAdditionalInformationDetails Fair Value Measurements - Additional Information (Details) Details 42 false false R43.htm 100430 - Disclosure - Fixed Assets - Major Classes of Fixed Assets (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureFixedAssetsMajorClassesOfFixedAssetsDetails Fixed Assets - Major Classes of Fixed Assets (Details) Details 43 false false R44.htm 100440 - Disclosure - Fixed Assets - Additional Information (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureFixedAssetsAdditionalInformationDetails Fixed Assets - Additional Information (Details) Details 44 false false R45.htm 100450 - Disclosure - Other Current Assets - Schedule of Other Current Assets (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureOtherCurrentAssetsScheduleOfOtherCurrentAssetsDetails Other Current Assets - Schedule of Other Current Assets (Details) Details 45 false false R46.htm 100460 - Disclosure - Reporting Segment and Geographical Information - Additional Information (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureReportingSegmentAndGeographicalInformationAdditionalInformationDetails Reporting Segment and Geographical Information - Additional Information (Details) Details 46 false false R47.htm 100470 - Disclosure - Reporting Segment and Geographical Information - Summary of Revenue by Geographic Region (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureReportingSegmentAndGeographicalInformationSummaryOfRevenueByGeographicRegionDetails Reporting Segment and Geographical Information - Summary of Revenue by Geographic Region (Details) Details 47 false false R48.htm 100480 - Disclosure - Debt, Commitments and Contingencies - Additional Information (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureDebtCommitmentsAndContingenciesAdditionalInformationDetails Debt, Commitments and Contingencies - Additional Information (Details) Details 48 false false R49.htm 100490 - Disclosure - Leases - Additional Information (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureLeasesAdditionalInformationDetails Leases - Additional Information (Details) Details 49 false false R50.htm 100500 - Disclosure - Leases - Schedule of Operating and Finance Lease Right-of-Use Asset, Short-term Lease Liabilities, and Long-term Lease Liabilities (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureLeasesScheduleOfOperatingAndFinanceLeaseRightOfUseAssetShortTermLeaseLiabilitiesAndLongTermLeaseLiabilitiesDetails Leases - Schedule of Operating and Finance Lease Right-of-Use Asset, Short-term Lease Liabilities, and Long-term Lease Liabilities (Details) Details 50 false false R51.htm 100510 - Disclosure - Leases - Schedule of Operating and Financing Lease Expense (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureLeasesScheduleOfOperatingAndFinancingLeaseExpenseDetails Leases - Schedule of Operating and Financing Lease Expense (Details) Details 51 false false R52.htm 100520 - Disclosure - Leases - Schedule of Supplemental Information Related to Operating Leases and Finance Leases (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureLeasesScheduleOfSupplementalInformationRelatedToOperatingLeasesAndFinanceLeasesDetails Leases - Schedule of Supplemental Information Related to Operating Leases and Finance Leases (Details) Details 52 false false R53.htm 100530 - Disclosure - Leases - Schedule of Maturity Analysis of Operating and Finance Lease Liabilities using Undiscounted Cash Flows on an Annual Basis (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureLeasesScheduleOfMaturityAnalysisOfOperatingAndFinanceLeaseLiabilitiesUsingUndiscountedCashFlowsOnAnnualBasisDetails Leases - Schedule of Maturity Analysis of Operating and Finance Lease Liabilities using Undiscounted Cash Flows on an Annual Basis (Details) Details 53 false false R54.htm 100540 - Disclosure - Leases - Schedule of Lease Income (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureLeasesScheduleOfLeaseIncomeDetails Leases - Schedule of Lease Income (Details) Details 54 false false R55.htm 100550 - Disclosure - Leases - Schedule of Future Fixed Lease Payments from Tenants for All Noncancelable Operating Leases (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureLeasesScheduleOfFutureFixedLeasePaymentsFromTenantsForAllNoncancelableOperatingLeasesDetails Leases - Schedule of Future Fixed Lease Payments from Tenants for All Noncancelable Operating Leases (Details) Details 55 false false R56.htm 100560 - Disclosure - Equity-Based Compensation - Summary of Equity-Based Compensation Expenses as Part of Cost of Revenue and Operating Expenses (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureEquityBasedCompensationSummaryOfEquityBasedCompensationExpensesAsPartOfCostOfRevenueAndOperatingExpensesDetails Equity-Based Compensation - Summary of Equity-Based Compensation Expenses as Part of Cost of Revenue and Operating Expenses (Details) Details 56 false false R57.htm 100580 - Disclosure - Provision for Income Taxes - Additional Information (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureProvisionForIncomeTaxesAdditionalInformationDetails Provision for Income Taxes - Additional Information (Details) Details 57 false false R58.htm 100590 - Disclosure - Income per Share - Reconciliation of Basic and Diluted Income Per Share Computations (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureIncomePerShareReconciliationOfBasicAndDilutedIncomePerShareComputationsDetails Income per Share - Reconciliation of Basic and Diluted Income Per Share Computations (Details) Details 58 false false R59.htm 100600 - Disclosure - Income per Share - Anti-dilutive Securities Excluded from Calculation of Diluted Income Per Share (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureIncomePerShareAntiDilutiveSecuritiesExcludedFromCalculationOfDilutedIncomePerShareDetails Income per Share - Anti-dilutive Securities Excluded from Calculation of Diluted Income Per Share (Details) Details 59 false false R60.htm 100610 - Disclosure - Related Parties - Additional Information (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureRelatedPartiesAdditionalInformationDetails Related Parties - Additional Information (Details) Details 60 false false R61.htm 100620 - Disclosure - Goodwill and Acquisition-Related Intangibles - Summaries of Goodwill and Acquisitions-Related Intangibles Balances (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureGoodwillAndAcquisitionRelatedIntangiblesSummariesOfGoodwillAndAcquisitionsRelatedIntangiblesBalancesDetails Goodwill and Acquisition-Related Intangibles - Summaries of Goodwill and Acquisitions-Related Intangibles Balances (Details) Details 61 false false R62.htm 100630 - Disclosure - Goodwill and Acquisition-Related Intangibles (Additional Information) (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureGoodwillAndAcquisitionrelatedIntangiblesAdditionalInformationDetails Goodwill and Acquisition-Related Intangibles (Additional Information) (Details) Details http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureGoodwillAndAcquisitionRelatedIntangiblesTables 62 false false R63.htm 100640 - Disclosure - Goodwill and Acquisition-Related Intangibles - Summary of Annual Amortization Expense For Acquisition-Related Intangibles (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/Role_DisclosureGoodwillAndAcquisitionRelatedIntangiblesSummaryOfAnnualAmortizationExpenseForAcquisitionRelatedIntangiblesDetails Goodwill and Acquisition-Related Intangibles - Summary of Annual Amortization Expense For Acquisition-Related Intangibles (Details) Details 63 false false R64.htm 100650 - Disclosure - Business Combinations - Additional Information (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureBusinessCombinationsAdditionalInformationDetails Business Combinations - Additional Information (Details) Details 64 false false R65.htm 100660 - Disclosure - Business Combinations - Summary of Consideration Paid and Amount of Assets Acquired and Liabilities Assumed (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureBusinessCombinationsSummaryOfConsiderationPaidAndAmountOfAssetsAcquiredAndLiabilitiesAssumedDetails Business Combinations - Summary of Consideration Paid and Amount of Assets Acquired and Liabilities Assumed (Details) Details 65 false false R66.htm 100670 - Disclosure - Business Combinations - Summary of Unaudited Pro Forma Financial Information (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureBusinessCombinationsSummaryOfUnauditedProFormaFinancialInformationDetails Business Combinations - Summary of Unaudited Pro Forma Financial Information (Details) Details 66 false false R67.htm 100680 - Disclosure - Stock Repurchase Program - Additional Information (Details) Sheet http://fulgentdiagnostics.com/20220630/taxonomy/role/DisclosureStockRepurchaseProgramAdditionalInformationDetails Stock Repurchase Program - Additional Information (Details) Details 67 false false All Reports Book All Reports flgt-20220630.htm flgt-20220630.xsd flgt-20220630_cal.xml flgt-20220630_def.xml flgt-20220630_lab.xml flgt-20220630_pre.xml flgt-ex31_1.htm flgt-ex31_2.htm flgt-ex32_1.htm http://fasb.org/us-gaap/2022 http://xbrl.sec.gov/dei/2022 true true