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Schedule of Intrinsic Value of Options Exercised Schedule of Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Grant Date Intrinsic Value [Table Text Block] Availability threshold, percentage of maximum commitment amount Debt Instrument, Debt Default, Availability Threshold, Percentage Of Maximum Commitment Amount Debt Instrument, Debt Default, Availability Threshold, Percentage Of Maximum Commitment Amount Gross unrealized holding losses Investments And Cash, Accumulated Gross Unrealized Loss, before Tax Investments And Cash, Accumulated Gross Unrealized Loss, before Tax Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Payables and Accruals [Abstract] Payables and Accruals [Abstract] Product and Service [Domain] Product and Service [Domain] Other Performance Measure, Amount Other Performance Measure, Amount Non-deductible officer compensation Income Tax Reconciliation Nondeductible Expense Officers Compensation Income tax reconciliation nondeductible expense officers compensation. 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Gain on sale of Myriad RBM, Inc. Myriad RBM, Inc [Member] Myriad RBM, Inc Net proceeds Sale of Stock, Consideration Received on Transaction Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Schedule of Recorded Amortization for Intangible Assets Finite-Lived Intangible Assets Amortization Expense [Table Text Block] Testing Revenue Testing Revenue [Member] Molecular diagnostic testing. 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Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Accrued expenses and liabilities Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Net loss Business Acquisition, Pro Forma Net Income (Loss) Issuance of common stock under stock-based compensation plans, net of shares exchanged for withholding tax Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture South San Francisco, California South San Francisco, California [Member] South San Francisco, California Federal income tax expense at the statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Inventory Inventory, Net Total Assets, Less Cash, Cash Equivalents, And Investments Assets, Less Cash, Cash Equivalents, And Investments Financial Instrument [Axis] Financial Instrument [Axis] DIVESTITURES Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Other non-current assets Business Combination, 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Customer [Domain] Number of shares Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Total income tax expense (benefit) Effective Income Tax Rate Reconciliation, Percent Operating Lease, Liability Operating Lease, Liability Gateway Genomics, LLC Gateway Genomics, LLC [Member] Gateway Genomics, LLC Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Share-Based Compensation Expense [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Inventory Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Cost of other revenue Cost Of Other Revenue [Member] Primary financial statement caption in which the reported facts about the cost of pharmaceutical and clinical services expense have been included. Vesting [Domain] Vesting [Domain] Accumulated other comprehensive loss AOCI Attributable to Parent [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash, cash equivalents, and marketable investment securities Cash, Cash Equivalents, and Short-Term Investments All Executive Categories All Executive Categories [Member] Prenatal Prenatal Testing [Member] Molecular diagnostic Prenatal testing. Unrecognized tax benefits Increase Decrease In Unrecognized Tax Benefits Increase decrease in unrecognized tax benefits. Other, net Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Plan Name [Axis] Plan Name [Axis] ACCRUED LIABILITIES Accounts Payable and Accrued Liabilities Disclosure [Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Number of reportable segments Number of Reportable Segments Cost of testing revenue Cost Of Testing [Member] Primary financial statement caption in which the reported facts about the cost of molecular diagnostic testing expense have been included. Common stock, $0.01 par value, 89.9 and 81.2 shares outstanding at December 31, 2023 and 2022, respectively Common Stock, Value, Issued Non-cash lease expense Operating Lease, Right-of-Use Asset, Periodic Reduction Capital loss Capital Loss Carryforward [Member] Deferred: Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Payment on finance leases Finance Lease, Principal Payments Number of patents allegedly infringed Loss Contingency, Patents Allegedly Infringed, Number Gross unrealized holding gains Investments And Cash, Accumulated Gross Unrealized Gain, before Tax Investments And Cash, Accumulated Gross Unrealized Gain, before Tax Restricted cash Restricted Cash All Individuals All Individuals [Member] Change in operating lease right-of-use assets and lease liabilities Cash Flow, Operating Activities, Lessee [Abstract] Litigation Case [Domain] Litigation Case [Domain] Other Total other income (expense) Other Nonoperating Income (Expense) Entity Filer Category Entity Filer Category Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Statement [Table] Statement [Table] Contingent consideration Business Combination, Contingent Consideration, Liability, Noncurrent Current Fiscal Year End Date Current Fiscal Year End Date Schedule of Differences Between Statutory Federal Income Tax Rate and Income Taxes Reported Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Unrecognized tax benefits Unrecognized tax benefits at the beginning of period Unrecognized tax benefits at end of year Unrecognized Tax Benefits Income Tax Authority [Axis] Income Tax Authority [Axis] PEO Name PEO Name Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Preferred stock authorized (in shares) Preferred Stock, Shares Authorized Restricted cash, current Restricted Cash, Current Schedule of Changes in Carrying Amount of Goodwill Schedule of Goodwill [Table Text Block] Preferred stock outstanding (in shares) Preferred Stock, Shares Outstanding Stock compensation expense Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost Other accrued liabilities Other Accrued Liabilities, Current Change in earnings (loss) per share (in dollars per share) Increase Decrease In Earnings Loss Per Share Increase decrease in earnings (loss) per share. 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Net identifiable assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Estimated remaining useful life Weighted-Average Useful Life (in Years) Finite-Lived Intangible Asset, Useful Life 2027 Lessee, Operating Lease, Liability, to be Paid, Year Four Raygen, Inc Versus Myriad Women's Health, Inc. Raygen, Inc Versus Myriad Women's Health, Inc. [Member] Raygen, Inc Versus Myriad Women's Health, Inc. 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Lease term (in years) Lessee, Operating Lease, Term of Contract ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Schedule of Stock Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Exercise Price Award Exercise Price Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Contingent consideration Contingent Consideration [Member] Contingent consideration. Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Financial liabilities Liabilities, Fair Value Disclosure Other revenue Product and Service, Other [Member] Consideration recognized at acquisition Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Change in foreign currency translation adjustment, net of tax Period translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Developed technologies Developed technology Developed Technology Rights [Member] Schedule of Stock-Based Compensation Expense Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Total liabilities and stockholders’ equity Liabilities and Equity Amortized cost Debt Securities, Available-for-Sale, Amortized Cost Other assets Other Assets, Noncurrent Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Risk-free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Weighted-Average Remaining Useful Life (in Years) Finite-Lived Intangible Assets, Remaining Amortization Period Operating lease right-of-use assets Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Foreign Current Foreign Tax Expense (Benefit) Arrangement Duration Trading Arrangement Duration Measurement period for earn out liability Business Combination, Contingent Consideration, Liability, Measurement Input, Term Business Combination, Contingent Consideration, Liability, Measurement Input, Term Entity Address, City or Town Entity Address, City or Town Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Change in Accounting Estimate, Type [Domain] Change in Accounting Estimate, Type [Domain] Non-deductible meals and entertainment Effective Income Tax Rate Reconciliation, Nondeductible Expense, Meals and Entertainment, Percent Termination Date Trading Arrangement Termination Date Common stock authorized (in shares) Common Stock, Shares Authorized Proceeds from maturities and sales of marketable investment securities Proceeds from Sale and Maturity of Marketable Securities Estimated fair value Debt Securities, Available-for-Sale Gross unrealized holding gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Present value of future lease payments Operating Lease, Liability, Including Leases Not Yet Commenced Operating Lease, Liability, Including Leases Not Yet Commenced Adjustments to reconcile net loss to net cash provided by (used in) operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Measurement Input Type [Axis] Measurement Input Type [Axis] Award Timing Disclosures [Line Items] Proceeds from sale of business Proceeds from Divestiture of Interest in Consolidated Subsidiaries Title of Individual [Domain] Title of Individual [Domain] New York Federal Reserve Bank Rate New York Federal Reserve Bank Rate [Member] New York Federal Reserve Bank Rate Total identifiable assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Fair value of restricted stock units that vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Tenant improvement allowance received Payments for (Proceeds from) Tenant Allowance Goodwill And Intangible Assets [Line Items] Goodwill And Intangible Assets [Line Items] Goodwill and intangible assets. Gain on sale of businesses and assets Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Relative Total Stockholders Return Share-Based Payment Arrangement, Tranche Three [Member] Reconciliation of Deferred Revenue Change in Contract with Customer, Liability [Abstract] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] SUPPLEMENTAL CASH FLOW INFORMATION Cash Flow, Supplemental Disclosures [Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Three Municipal bonds Municipal bonds Municipal Bonds [Member] Insider Trading Arrangements [Line Items] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Cash and cash equivalents: Cash and Cash Equivalents, at Carrying Value [Abstract] Aggregate intrinsic value of options outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Fair value, recurring basis, unobservable input reconciliation, gain (loss), statement of income Fair Value Recurring Basis Unobservable Input Reconciliation Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag Fair Value Recurring Basis Unobservable Input Reconciliation Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag Entity Registrant Name Entity Registrant Name Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Award Timing Method Award Timing Method [Text Block] Foreign rate differential Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Two Adjustment to Compensation, Amount Adjustment to Compensation Amount Performance based on Nasdaq Healthcare Provider Index Share-Based Payment Arrangement, Tranche Two [Member] Auditor Name Auditor Name Proceeds from revolving credit facility Proceeds from Lines of Credit Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Less accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Disposal Group Name [Axis] Disposal Group Name [Axis] Options exercisable (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Entity Central Index Key Entity Central Index Key Purchases of property, plant and equipment and capitalization of internal-use software in accounts payable and accrued liabilities Purchases Of Property, Plant And Equipment And Capitalization Of Internal-use Software In Accounts Payable And Accrued Liabilities Purchases Of Property, Plant And Equipment And Capitalization Of Internal-use Software In Accounts Payable And Accrued Liabilities Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Gross carrying amount, amortizable Finite-Lived Intangible Assets, Gross Income Tax Authority [Domain] Income Tax Authority [Domain] Employee compensation and benefits Employee-related Liabilities, Current Schedule of Net Operating Loss and Research Credit Carryforwards (Tax Effected) Summary of Operating Loss Carryforwards [Table Text Block] Revenue Revenue Benchmark [Member] Name Trading Arrangement, Individual Name Other comprehensive (loss) income, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Schedule of Revenue by Type Disaggregation of Revenue [Table Text Block] Issuance of common stock for public offering, net Stock Issued During Period, Value, New Issues Foreign rate differential Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Total revenue Revenue from Contract with Customer, Excluding Assessed Tax Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Amendment Flag Amendment Flag Non-deductible legal settlement Income Tax Reconciliation Non Deductible Legal Settlement Income tax reconciliation non-deductible legal settlement. Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Variable Rate Scenario [Axis] Variable Rate Scenario [Axis] Variable Rate Scenario Operating lease weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Available-for-sale, Due within one year Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Unrecognized tax benefits Unrecognized Tax Benefits, Net Unrecognized Tax Benefits, Net Business Acquisitions Business Combinations Policy [Policy Text Block] Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Long-term debt Long-Term Debt, Excluding Current Maturities Debt instrument, maximum amount borrowing base period Debt Instrument, Maximum Amount Borrowing Base Period Debt Instrument, Maximum Amount Borrowing Base Period Leasehold improvements Leasehold Improvements [Member] Net deferred tax liability Net deferred tax liabilities Deferred Tax Liabilities, Net Diluted (in shares) Weighted-average shares outstanding and dilutive securities used to compute diluted EPS (in shares) Weighted Average Number of Shares Outstanding, Diluted Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expenses, Other Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Realized losses Debt Securities, Available-for-Sale, Realized Gain (Loss) Income Tax Authority, Name [Axis] Income Tax Authority, Name [Axis] Schedule of Amounts Recognized in Other Income Disposal Groups, Including Discontinued Operations [Table Text Block] Unamortized software costs Capitalized Computer Software, Gross Number of additional shares authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized Company Selected Measure Amount Company Selected Measure Amount Options outstanding, Weighted average remaining contractual life (in years) Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Remaining Contractual Term Legal settlements Legal Charges Pending Settlement, Noncurrent Legal Charges Pending Settlement, Noncurrent Variable Rate, Scenario One Variable Rate, Scenario One [Member] Variable Rate, Scenario One Total assets Total Assets Name Awards Close in Time to MNPI Disclosures, Individual Name Equipment Equipment [Member] Options vested and expected to vest, Weighted average remaining contractual life (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term Stock-based payment expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition OTHER LONG-TERM LIABILITIES Other Liabilities Disclosure [Text Block] Area of real estate, space utilized to perform testing Area Of Real Estate Property, Space Utilized To Perform Testing Area Of Real Estate Property, Space Utilized To Perform Testing RSUs vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Non-NEOs Non-NEOs [Member] CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Non-PEO NEO Non-PEO NEO [Member] Goodwill and long-lived asset impairment charges Impairment of goodwill and long-lived assets Goodwill and Intangible Asset Impairment Line of credit facility, borrowing base, eligible cash held Line Of Credit Facility, Borrowing Base, Eligible Cash Held Line Of Credit Facility, Borrowing Base, Eligible Cash Held Adjustment to Compensation: Adjustment to Compensation [Axis] Transaction costs Disposal Group, Not Discontinued Operation, Transaction Costs Disposal Group, Not Discontinued Operation, Transaction Costs Autoimmune Autoimmune [Member] Autoimmune Other Other State [Member] Other State. Scenario [Axis] Scenario [Axis] Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Debt Instrument [Line Items] Debt Instrument [Line Items] Basic (in shares) Weighted-average shares outstanding used to compute basic EPS (in shares) Weighted Average Number of Shares Outstanding, Basic Property, plant and equipment Deferred Tax Liabilities, Property, Plant and Equipment Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Future Amortization Expense Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Loss on non-cancelable purchase commitment Inventory, Firm Purchase Commitment, Loss Common stock issued upon exercise of options, vesting of restricted stock units, and purchases under employee stock purchase plans (in shares) Stock Issued During Period, Shares, Share-Based Payment Arrangement And Employee Stock Purchase Plans Stock Issued During Period, Shares, Share-Based Payment Arrangement And Employee Stock Purchase Plans Debt instrument, covenant, availability amount, minimum Debt Instrument, Covenant, Availability Amount, Minimum Debt Instrument, Covenant, Availability Amount, Minimum Proceeds from common stock issued under stock-based compensation plans Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Undrawn fee (percent) Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Statement [Line Items] Statement [Line Items] Plan compensation expense Share-Based Payment Arrangement, Expensed and Capitalized, Amount Options vested and expected to vest (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Intangible assets Deferred Tax Liabilities, Intangible Assets Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis]