$MYGN
MYRIAD GENETICS INC Stock $mygn

$mygn Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000089992324000018 Filed on February 28, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$202.2M	$196.6M	$753.2M
YoY Change	11.59%	10.57%	11.03%
Cost Of Revenue	$64.60M	$61.60M	$236.2M
YoY Change	9.12%	14.29%	16.93%
Gross Profit	$137.6M	$135.0M	$517.0M
YoY Change	12.79%	8.96%	8.52%
Gross Profit Margin	68.05%	68.67%	68.64%
Selling, General & Admin	$140.6M	$136.7M	$572.9M
YoY Change	-7.32%	-6.69%	11.31%
% of Gross Profit	102.18%	101.26%	110.81%
Research & Development	$24.90M	$21.00M	$88.70M
YoY Change	10.67%	-10.26%	3.86%
% of Gross Profit	18.1%	15.56%	17.16%
Depreciation & Amortization	$4.900M	$15.10M	$19.10M
YoY Change	-43.68%	10.22%	64.66%
% of Gross Profit	3.56%	11.19%	3.69%
Operating Expenses	$165.5M	$157.7M	$661.6M
YoY Change	-4.99%	-7.18%	10.25%
Operating Profit	-$27.90M	-$22.70M	-$257.4M
YoY Change	-46.55%	-50.65%	83.07%
Interest Expense	$500.0K	-$200.0K	$2.900M
YoY Change	0.0%	-300.0%	-9.38%
% of Operating Profit
Other Income/Expense, Net	$2.000M	-$700.0K	-$4.800M
YoY Change	-600.0%
Pretax Income	-$25.90M	-$32.30M	-$262.2M
YoY Change	-50.76%	-38.0%	86.49%
Income Tax	$100.0K	-$1.100M	$1.100M
% Of Pretax Income
Net Earnings	-$26.00M	-$31.20M	-$263.3M
YoY Change	-52.47%	-26.24%	135.09%
Net Earnings / Revenue	-12.86%	-15.87%	-34.96%
Basic Earnings Per Share	-$0.29		-$3.18
Diluted Earnings Per Share	-$0.29	-$0.36	-$3.18
COMMON SHARES
Basic Shares Outstanding	89.87M shares	82.20M shares	82.80M shares
Diluted Shares Outstanding	89.90M shares		82.80M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$104.3M	$140.9M	$140.9M
YoY Change	32.53%	22.63%	22.63%
Cash & Equivalents	$96.90M	$132.1M	$2.200M
Short-Term Investments	$7.400M	$8.800M	$8.800M
Other Short-Term Assets	$43.30M	$36.40M	$36.40M
YoY Change	3.1%	-4.21%	-4.21%
Inventory	$24.60M	$22.00M	$22.00M
Prepaid Expenses
Receivables	$118.1M	$114.3M	$114.3M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$290.3M	$313.6M	$313.6M
YoY Change	10.97%	14.2%	14.2%
LONG-TERM ASSETS
Property, Plant & Equipment	$118.5M	$119.0M	$180.6M
YoY Change	23.05%	42.69%	-3.58%
Goodwill	$287.0M	$287.4M
YoY Change	-0.03%	0.21%
Intangibles	$340.9M	$349.5M
YoY Change	-7.72%	-7.95%
Long-Term Investments		$0.00	$0.00
YoY Change		-100.0%	-100.0%
Other Assets	$14.90M	$15.40M	$15.40M
YoY Change	-14.86%	-0.65%	-0.65%
Total Long-Term Assets	$820.2M	$832.9M	$832.9M
YoY Change	-9.64%	-9.87%	-9.87%
TOTAL ASSETS
Total Short-Term Assets	$290.3M	$313.6M	$313.6M
Total Long-Term Assets	$820.2M	$832.9M	$832.9M
Total Assets	$1.111B	$1.147B	$1.147B
YoY Change	-5.03%	-4.35%	-4.35%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$33.10M	$25.80M	$25.80M
YoY Change	-9.32%	-10.42%	-10.42%
Accrued Expenses	$99.20M	$113.9M	$104.8M
YoY Change	8.18%	20.78%	31.99%
Deferred Revenue		$500.0K
YoY Change		-16.67%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$146.1M	$155.9M	$155.9M
YoY Change	1.95%	13.63%	13.63%
LONG-TERM LIABILITIES
Long-Term Debt	$38.70M	$38.50M	$38.50M
YoY Change
Other Long-Term Liabilities	$40.60M	$41.30M	$168.9M
YoY Change	253.04%	184.83%	-1.92%
Total Long-Term Liabilities	$79.30M	$79.80M	$207.4M
YoY Change	589.57%	450.34%	20.44%
TOTAL LIABILITIES
Total Short-Term Liabilities	$146.1M	$155.9M	$155.9M
Total Long-Term Liabilities	$79.30M	$79.80M	$207.4M
Total Liabilities	$350.5M	$363.3M	$363.3M
YoY Change	4.91%	16.11%	16.11%
SHAREHOLDERS EQUITY
Retained Earnings	-$655.5M	-$629.5M
YoY Change	55.74%	71.9%
Common Stock	$1.420B	$1.416B
YoY Change	12.36%	12.33%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$760.0M	$783.2M	$783.2M
YoY Change
Total Liabilities & Shareholders Equity	$1.111B	$1.147B	$1.147B
YoY Change	-5.03%	-4.35%	-4.35%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	-$26.00M	-$31.20M	-$263.3M
YoY Change	-52.47%	-26.24%	135.09%
Depreciation, Depletion And Amortization	$4.900M	$15.10M	$19.10M
YoY Change	-43.68%	10.22%	64.66%
Cash From Operating Activities	-$18.60M	-$54.70M	-$110.9M
YoY Change	-43.98%	610.39%	4.33%
INVESTING ACTIVITIES
Capital Expenditures	$8.600M	$13.50M	$73.30M
YoY Change	-63.4%	-7.53%	61.81%
Acquisitions			$0.00
YoY Change			-100.0%
Other Investing Activities	$1.500M	$1.500M	$105.2M
YoY Change	-97.42%	-107.14%	-426.71%
Cash From Investing Activities	-$7.100M	-$12.00M	$31.90M
YoY Change	-120.52%	-66.29%	-141.16%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$8.800M	121.9M	$152.9M
YoY Change	79.59%	-5904.76%	-2011.25%
NET CHANGE
Cash From Operating Activities	-$18.60M	-54.70M	-$110.9M
Cash From Investing Activities	-$7.100M	-12.00M	$31.90M
Cash From Financing Activities	-$8.800M	121.9M	$152.9M
Net Change In Cash	-$35.30M	55.20M	$74.50M
YoY Change	969.7%	-221.59%	-138.72%
FREE CASH FLOW
Cash From Operating Activities	-$18.60M	-$54.70M	-$110.9M
Capital Expenditures	$8.600M	$13.50M	$73.30M
Free Cash Flow	-$27.20M	-$68.20M	-$184.2M
YoY Change	-52.03%	205.83%	21.5%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	dei	Trading Symbol TradingSymbol	MYGN
CY2023	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2023	us-gaap	Interest Expense InterestExpense	2900000	usd
CY2022	us-gaap	Interest Expense InterestExpense	3200000	usd
CY2021	us-gaap	Interest Expense InterestExpense	6600000	usd
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.35
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0000899923
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity Registrant Name EntityRegistrantName	MYRIAD GENETICS, INC.
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	322 North 2200 West,
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Salt Lake City
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	UT
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	87-0494517
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	84116
CY2023	dei	City Area Code CityAreaCode	801
CY2023	dei	Local Phone Number LocalPhoneNumber	584-3600
CY2023	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	1897979976	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	89874886	shares
CY2023	dei	Auditor Firm AuditorFirmId	42
CY2023	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2023	dei	Auditor Location AuditorLocation	Salt Lake City, UT
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	132100000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	56900000	usd
CY2023Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	8800000	usd
CY2022Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	58000000.0	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	114300000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	101600000	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	22000000.0	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	20100000	usd
CY2023Q4	us-gaap	Prepaid Taxes PrepaidTaxes	17000000.0	usd
CY2022Q4	us-gaap	Prepaid Taxes PrepaidTaxes	17600000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	19400000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	20400000	usd
CY2023Q4	us-gaap	Assets Current AssetsCurrent	313600000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	274600000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	61600000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	103900000	usd
CY2023Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	0	usd
CY2022Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	54800000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	119000000.0	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	83400000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	349500000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	379700000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	287400000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	286800000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	15400000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	15500000	usd
CY2023Q4	us-gaap	Assets Assets	1146500000	usd
CY2022Q4	us-gaap	Assets Assets	1198700000	usd
CY2023Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	25800000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	28800000	usd
CY2023Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	113900000	usd
CY2022Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	94300000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	16200000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	14100000	usd
CY2023Q4	us-gaap	Liabilities Current LiabilitiesCurrent	155900000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	137200000	usd
CY2023Q4	mygn	Unrecognized Tax Benefits Net UnrecognizedTaxBenefitsNet	30200000	usd
CY2022Q4	mygn	Unrecognized Tax Benefits Net UnrecognizedTaxBenefitsNet	26800000	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	38500000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	97400000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	130900000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	41300000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	18000000.0	usd
CY2023Q4	us-gaap	Liabilities Liabilities	363300000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	312900000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	89900000	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	81200000	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	900000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	800000	usd
CY2023Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1415500000	usd
CY2022Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1260100000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3700000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-8900000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-629500000	usd
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CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	783200000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	885800000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1146500000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1198700000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	753200000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	678400000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	690600000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	88700000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	85400000	usd
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	81900000	usd
CY2023	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	572900000	usd
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	514700000	usd
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	537800000	usd
CY2023	us-gaap	Legal Fees LegalFees	112800000	usd
CY2022	us-gaap	Legal Fees LegalFees	0	usd
CY2021	us-gaap	Legal Fees LegalFees	62000000.0	usd
CY2023	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	usd
CY2022	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	16900000	usd
CY2021	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	1800000	usd
CY2023	us-gaap	Costs And Expenses CostsAndExpenses	1010600000	usd
CY2022	us-gaap	Costs And Expenses CostsAndExpenses	819000000.0	usd
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	881100000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	-140600000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	-190500000	usd
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	700000	usd
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.18
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.39
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.39
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.35
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	82800000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	82800000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	80600000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	78000000.0	shares
CY2023	us-gaap	Net Income Loss NetIncomeLoss	-263300000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-112000000.0	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-27200000	usd
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CY2023	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	2100000	usd
CY2022	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-1300000	usd
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-1800000	usd
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CY2023	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	-400000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	usd
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-258100000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-115800000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-30000000.0	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	881000000.0	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	80300000	usd
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CY2021	us-gaap	Net Income Loss NetIncomeLoss	-27200000	usd
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CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	967800000	usd
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CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	38100000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-112000000.0	usd
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CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	885800000	usd
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CY2023	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	117600000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	40700000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	-263300000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	5200000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	783200000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-112000000.0	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-27200000	usd
CY2023	us-gaap	Depreciation And Amortization DepreciationAndAmortization	61900000	usd
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	52700000	usd
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	62800000	usd
CY2023	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	11300000	usd
CY2022	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	11700000	usd
CY2021	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	12800000	usd
CY2023	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	-7700000	usd
CY2022	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	0	usd
CY2021	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	0	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	40700000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	38100000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	36300000	usd
CY2023	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-4000000.0	usd
CY2022	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-30800000	usd
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-32100000	usd
CY2023	mygn	Increase Decrease In Unrecognized Tax Benefits IncreaseDecreaseInUnrecognizedTaxBenefits	-3400000	usd
CY2022	mygn	Increase Decrease In Unrecognized Tax Benefits IncreaseDecreaseInUnrecognizedTaxBenefits	1100000	usd
CY2021	mygn	Increase Decrease In Unrecognized Tax Benefits IncreaseDecreaseInUnrecognizedTaxBenefits	2600000	usd
CY2023	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	-1500000	usd
CY2022	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	0	usd
CY2021	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	0	usd
CY2023	us-gaap	Inventory Write Down InventoryWriteDown	0	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	0	usd
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	6500000	usd
CY2023	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	usd
CY2022	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	16900000	usd
CY2021	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	1800000	usd
CY2023	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	0	usd
CY2022	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	0	usd
CY2021	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	162000000.0	usd
CY2023	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	2900000	usd
CY2022	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	1700000	usd
CY2021	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	1500000	usd
CY2023	us-gaap	Increase Decrease In Prepaid Expenses Other IncreaseDecreaseInPrepaidExpensesOther	-200000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Expenses Other IncreaseDecreaseInPrepaidExpensesOther	-1600000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Expenses Other IncreaseDecreaseInPrepaidExpensesOther	6600000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	12500000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	10300000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	8800000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	1800000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	2900000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-1600000	usd
CY2023	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-700000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-700000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Taxes IncreaseDecreaseInPrepaidTaxes	-89900000	usd
CY2023	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-600000	usd
CY2022	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	900000	usd
CY2021	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	3600000	usd
CY2023	us-gaap	Payments For Proceeds From Tenant Allowance PaymentsForProceedsFromTenantAllowance	-16300000	usd
CY2022	us-gaap	Payments For Proceeds From Tenant Allowance PaymentsForProceedsFromTenantAllowance	-18000000.0	usd
CY2021	us-gaap	Payments For Proceeds From Tenant Allowance PaymentsForProceedsFromTenantAllowance	0	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-3700000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-3500000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	9200000	usd
CY2023	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	27400000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-81200000	usd
CY2021	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	65700000	usd
CY2023	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-200000	usd
CY2022	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-5000000.0	usd
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-26600000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-110900000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-106300000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	18600000	usd
CY2023	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	63200000	usd
CY2022	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	45300000	usd
CY2021	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	18000000.0	usd
CY2023	us-gaap	Payments For Software PaymentsForSoftware	10100000	usd
CY2022	us-gaap	Payments For Software PaymentsForSoftware	0	usd
CY2021	us-gaap	Payments For Software PaymentsForSoftware	0	usd
CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	57200000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
CY2023	us-gaap	Proceeds From Sales Of Business Affiliate And Productive Assets ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets	0	usd
CY2022	us-gaap	Proceeds From Sales Of Business Affiliate And Productive Assets ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets	0	usd
CY2021	us-gaap	Proceeds From Sales Of Business Affiliate And Productive Assets ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets	379100000	usd
CY2023	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	0	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	103200000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	147800000	usd
CY2023	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	105200000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	128200000	usd
CY2021	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	61100000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	31900000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-77500000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	274400000	usd
CY2023	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	6000000.0	usd
CY2022	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	6300000	usd
CY2021	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	91800000	usd
CY2023	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	8800000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	10600000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	11500000	usd
CY2023	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	117600000	usd
CY2022	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	0	usd
CY2021	us-gaap	Proceeds From Issuance Initial Public Offering ProceedsFromIssuanceInitialPublicOffering	0	usd
CY2023	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	80000000.0	usd
CY2022	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	usd
CY2021	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	usd
CY2023	us-gaap	Payments Of Debt Restructuring Costs PaymentsOfDebtRestructuringCosts	1700000	usd
CY2022	us-gaap	Payments Of Debt Restructuring Costs PaymentsOfDebtRestructuringCosts	700000	usd
CY2021	us-gaap	Payments Of Debt Restructuring Costs PaymentsOfDebtRestructuringCosts	1200000	usd
CY2023	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	40000000.0	usd
CY2022	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	usd
CY2021	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	226400000	usd
CY2023	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	usd
CY2022	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	3000000.0	usd
CY2021	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	3300000	usd
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	200000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	0	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	0	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	152900000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-8000000.0	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-150600000	usd
CY2023	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	600000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-600000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-600000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	74500000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-192400000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	141800000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	66400000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	258800000	usd
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of the consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the consolidated financial statements, as well as the reported amounts of revenue and expenses during the reporting period. Significant items subject to such estimates and assumptions include revenue recognition estimates for the average expected reimbursement per test, valuation allowances for deferred income tax assets, our incremental borrowing rates used to calculate our lease balances, certain accrued liabilities, stock-based compensation, purchase accounting, and impairment analysis of goodwill and long-lived assets. Actual results could differ from those estimates.</span></div>
CY2023	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Concentration of Credit Risk</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. Substantially all of the Company’s accounts receivable are with companies in the healthcare industry, U.S. and state governmental agencies, and individuals. The Company does not believe that receivables due from U.S. and state governmental agencies, such as Medicare, represent a credit risk since the related health care programs are funded by the U.S. and state governments. The Company only has one payor, Medicare, that represents greater than 10% of its revenues. Revenues received from Medicare represented approximately 12%, 14%, and 17% of total revenue for the years ended December 31, 2023, 2022, and 2021, respectively. Concentrations of credit risk are mitigated due to the number of the Company’s customers as well as their dispersion across many geographic regions. The Company has only one payor that accounted for more than 10% of accounts receivable at December 31, 2023. The balance of accounts receivable from the payor represented 12% of the total accounts receivable balance as of December 31, 2023. <span id="i2e8d2271b3af48149448e8d01e789382_36657"></span>No payor accounted for more than 10% of accounts receivable at December 31, 2022. The Company does not require collateral from its customers.</span></div>
CY2023Q4	us-gaap	Restricted Cash RestrictedCash	8800000	usd
CY2023Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	1200000	usd
CY2023Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	7600000	usd
CY2022Q4	us-gaap	Restricted Cash RestrictedCash	9500000	usd
CY2022Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	2000000	usd
CY2022Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	7500000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	132100000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	56900000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	257400000	usd
CY2023Q4	us-gaap	Restricted Cash RestrictedCash	8800000	usd
CY2022Q4	us-gaap	Restricted Cash RestrictedCash	9500000	usd
CY2021Q4	us-gaap	Restricted Cash RestrictedCash	1400000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	140900000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	66400000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	258800000	usd
CY2022Q4	us-gaap	Hosting Arrangement Service Contract Implementation Cost Capitalized Before Accumulated Amortization HostingArrangementServiceContractImplementationCostCapitalizedBeforeAccumulatedAmortization	7100000	usd
CY2023	mygn	Contract With Customer Liability Prepayments ContractWithCustomerLiabilityPrepayments	400000	usd
CY2022	mygn	Contract With Customer Liability Prepayments ContractWithCustomerLiabilityPrepayments	300000	usd
CY2021	mygn	Contract With Customer Liability Prepayments ContractWithCustomerLiabilityPrepayments	14000000.0	usd
CY2023Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P10Y
CY2023Q4	us-gaap	Hosting Arrangement Service Contract Implementation Cost Capitalized Before Accumulated Amortization HostingArrangementServiceContractImplementationCostCapitalizedBeforeAccumulatedAmortization	4600000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	753200000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	678400000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	690600000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	753200000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	678400000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	690600000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	600000	usd
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	5200000	usd
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	32700000	usd
CY2023	mygn	Contract With Customer Liability Including New Contract Revenue Recognized ContractWithCustomerLiabilityIncludingNewContractRevenueRecognized	500000	usd
CY2022	mygn	Contract With Customer Liability Including New Contract Revenue Recognized ContractWithCustomerLiabilityIncludingNewContractRevenueRecognized	4900000	usd
CY2021	mygn	Contract With Customer Liability Including New Contract Revenue Recognized ContractWithCustomerLiabilityIncludingNewContractRevenueRecognized	40500000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	82800000	shares
CY2023	mygn	Contract With Customer Liability Divestitures ContractWithCustomerLiabilityDivestitures	0	usd
CY2022	mygn	Contract With Customer Liability Divestitures ContractWithCustomerLiabilityDivestitures	0	usd
CY2021	mygn	Contract With Customer Liability Divestitures ContractWithCustomerLiabilityDivestitures	1000000.0	usd
CY2023Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	500000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	600000	usd
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	5200000	usd
CY2023	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	7200000	usd
CY2022	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	22100000	usd
CY2021	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	15900000	usd
CY2021	mygn	Contract With Customer Asset Adjustment To Revenue For Expanded Coverage Previously Constrained ContractWithCustomerAssetAdjustmentToRevenueForExpandedCoveragePreviouslyConstrained	6800000	usd
CY2023Q4	us-gaap	Capitalized Contract Cost Gross CapitalizedContractCostGross	0	usd
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	80600000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	78000000.0	shares
CY2023	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5100000	shares
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4400000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4500000	shares
CY2023	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-3400000	usd
CY2022	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	200000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	132100000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	132100000	usd
CY2023Q4	mygn	Investments And Cash Amortized Cost InvestmentsAndCashAmortizedCost	141000000.0	usd
CY2023Q4	mygn	Investments And Cash Accumulated Gross Unrealized Gain Before Tax InvestmentsAndCashAccumulatedGrossUnrealizedGainBeforeTax	0	usd
CY2023Q4	mygn	Investments And Cash Accumulated Gross Unrealized Loss Before Tax InvestmentsAndCashAccumulatedGrossUnrealizedLossBeforeTax	100000	usd
CY2023Q4	us-gaap	Investments And Cash InvestmentsAndCash	140900000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	56900000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	56900000	usd
CY2022Q4	mygn	Investments And Cash Amortized Cost InvestmentsAndCashAmortizedCost	172400000	usd
CY2022Q4	mygn	Investments And Cash Accumulated Gross Unrealized Gain Before Tax InvestmentsAndCashAccumulatedGrossUnrealizedGainBeforeTax	0	usd
CY2022Q4	mygn	Investments And Cash Accumulated Gross Unrealized Loss Before Tax InvestmentsAndCashAccumulatedGrossUnrealizedLossBeforeTax	2700000	usd
CY2022Q4	us-gaap	Investments And Cash InvestmentsAndCash	169700000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	8900000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	8800000	usd
CY2023Q4	mygn	Investments And Cash Amortized Cost InvestmentsAndCashAmortizedCost	141000000.0	usd
CY2023Q4	us-gaap	Investments And Cash InvestmentsAndCash	140900000	usd
CY2023	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	90400000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	28400000	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	8300000	usd
CY2023	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	-1500000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	7	position
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	100000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	8800000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	118	position
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	2700000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	111600000	usd
CY2023Q4	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	5600000	usd
CY2022Q4	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	109300000	usd
CY2022Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	6800000	usd
CY2021Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	8600000	usd
CY2020Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	10900000	usd
CY2023	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	3000000.0	usd
CY2021	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	3300000	usd
CY2023	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	0	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	-2100000	usd
CY2021	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	0	usd
CY2022	mygn	Fair Value Recurring Basis Unobservable Input Reconciliation Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfIncomeExtensibleListNotDisclosedFlag	Change in fair value recognized in the statement of operations
CY2021	mygn	Fair Value Recurring Basis Unobservable Input Reconciliation Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfIncomeExtensibleListNotDisclosedFlag	Change in fair value recognized in the statement of operations
CY2023	mygn	Fair Value Recurring Basis Unobservable Input Reconciliation Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfIncomeExtensibleListNotDisclosedFlag	Change in fair value recognized in the statement of operations
CY2023	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	-1500000	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	-400000	usd
CY2021	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	1800000	usd
CY2023	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	-100000	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	500000	usd
CY2021	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Other Comprehensive Income FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInOtherComprehensiveIncome	800000	usd
CY2023Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	5400000	usd
CY2022Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	6800000	usd
CY2021Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	8600000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	238900000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	192600000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	119900000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	109200000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	119000000.0	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	83400000	usd
CY2023	us-gaap	Depreciation Depreciation	19100000	usd
CY2022	us-gaap	Depreciation Depreciation	11600000	usd
CY2021	us-gaap	Depreciation Depreciation	12100000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	286800000	usd
CY2023	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	600000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	287400000	usd
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2023	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2023Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	645800000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	296300000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	349500000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P13Y10M24D
CY2023Q4	us-gaap	Finite Lived Intangible Assets Remaining Amortization Period1 FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1	P7Y10M24D
CY2022Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	632700000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	253000000.0	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	379700000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P14Y4M24D
CY2022Q4	us-gaap	Finite Lived Intangible Assets Remaining Amortization Period1 FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1	P9Y1M6D
CY2023	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2022	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2021	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	42800000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	41100000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	50700000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	45000000.0	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	46300000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	46500000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	44700000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	43400000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	123600000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	349500000	usd
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	49700000	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	41200000	usd
CY2023Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	4600000	usd
CY2022Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	4800000	usd
CY2023Q4	mygn	Refunds Payable And Reserve Current RefundsPayableAndReserveCurrent	20100000	usd
CY2022Q4	mygn	Refunds Payable And Reserve Current RefundsPayableAndReserveCurrent	19300000	usd
CY2023Q4	us-gaap	Business Combination Contingent Consideration Liability Current BusinessCombinationContingentConsiderationLiabilityCurrent	3100000	usd
CY2022Q4	us-gaap	Business Combination Contingent Consideration Liability Current BusinessCombinationContingentConsiderationLiabilityCurrent	0	usd
CY2023Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	5300000	usd
CY2022Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	4800000	usd
CY2023Q4	us-gaap	Litigation Reserve Current LitigationReserveCurrent	6000000.0	usd
CY2022Q4	us-gaap	Litigation Reserve Current LitigationReserveCurrent	0	usd
CY2023Q4	mygn	Lease Termination Accrual Current LeaseTerminationAccrualCurrent	4400000	usd
CY2022Q4	mygn	Lease Termination Accrual Current LeaseTerminationAccrualCurrent	0	usd
CY2023Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	20700000	usd
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	24200000	usd
CY2023Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	113900000	usd
CY2022Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	94300000	usd
CY2023Q4	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	2300000	usd
CY2022Q4	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	6800000	usd
CY2023Q4	mygn	Escrow Liability Noncurrent EscrowLiabilityNoncurrent	7500000	usd
CY2022Q4	mygn	Escrow Liability Noncurrent EscrowLiabilityNoncurrent	7500000	usd
CY2023Q4	mygn	Legal Charges Pending Settlement Noncurrent LegalChargesPendingSettlementNoncurrent	24000000.0	usd
CY2022Q4	mygn	Legal Charges Pending Settlement Noncurrent LegalChargesPendingSettlementNoncurrent	0	usd
CY2023Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	7500000	usd
CY2022Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	3700000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	41300000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	18000000.0	usd
CY2023Q4	mygn	Escrow Liability Noncurrent EscrowLiabilityNoncurrent	7500000	usd
CY2023Q4	mygn	Legal Charges Pending Settlement Noncurrent LegalChargesPendingSettlementNoncurrent	24000000	usd
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	700000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	150000000	shares
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	150000000	shares
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	7400000	shares
CY2023Q4	us-gaap	Sale Of Stock Price Per Share SaleOfStockPricePerShare	17.00
CY2023Q4	mygn	Sale Of Stock Consideration Received On Transaction Gross SaleOfStockConsiderationReceivedOnTransactionGross	126500000	usd
CY2023Q4	us-gaap	Sale Of Stock Consideration Received On Transaction SaleOfStockConsiderationReceivedOnTransaction	117600000	usd
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	89900000	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	89900000	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	81200000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	81200000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	81200000	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	81200000	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	80000000.0	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	80000000.0	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	75400000	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	75400000	shares
CY2023	mygn	Stock Issued During Period Shares Share Based Payment Arrangement And Employee Stock Purchase Plans StockIssuedDuringPeriodSharesShareBasedPaymentArrangementAndEmployeeStockPurchasePlans	1300000	shares
CY2022	mygn	Stock Issued During Period Shares Share Based Payment Arrangement And Employee Stock Purchase Plans StockIssuedDuringPeriodSharesShareBasedPaymentArrangementAndEmployeeStockPurchasePlans	1200000	shares
CY2021	mygn	Stock Issued During Period Shares Share Based Payment Arrangement And Employee Stock Purchase Plans StockIssuedDuringPeriodSharesShareBasedPaymentArrangementAndEmployeeStockPurchasePlans	4600000	shares
CY2023	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	7400000	shares
CY2022	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	0	shares
CY2021	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	0	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	89900000	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	89900000	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	81200000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	81200000	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	80000000.0	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	80000000.0	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	700000	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	13.38
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	700000	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	13.38
CY2023	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P3Y7M13D
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	500000	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	13.38
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y7M13D
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	13.38
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P3Y7M13D
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	40700000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	38100000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	36300000	usd
CY2023Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	66200000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y10M24D
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	3900000	usd
CY2023Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	2600000	usd
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	0	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	0	usd
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	29200000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	3400000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-500000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-1900000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1800000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1900000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	3600000	usd
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	200000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	500000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	100000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	5400000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1900000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1800000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-51800000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-25800000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-33700000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-5200000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-4800000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	5100000	usd
CY2023	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	100000	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-2900000	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	100000	usd
CY2023	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-52600000	usd
CY2022	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-3000000.0	usd
CY2021	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	3200000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-4300000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-30500000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-31700000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1100000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-28600000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-29900000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-263200000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-141300000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-53800000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1000000.0	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	700000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-3300000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-262200000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-140600000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-57100000	usd
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-54900000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-29500000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-12000000.0	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-4100000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.016
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-3300000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.023
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-1800000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.032
CY2023	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	1600000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.006
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	3500000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.025
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	-2500000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.044
CY2023	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	3700000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.014
CY2022	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	600000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	-0.004
CY2021	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-3000000.0	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.053
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	1200000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.005
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	2500000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.018
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	700000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.012
CY2023	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-400000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.002
CY2022	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	0	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0
CY2021	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	500000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.009
CY2023	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	52600000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.201
CY2022	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	2600000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.018
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-3200000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.056
CY2023	mygn	Income Tax Reconciliation Cares Act IncomeTaxReconciliationCARESAct	0	usd
CY2023	mygn	Effective Income Tax Rate Reconciliation Cares Act EffectiveIncomeTaxRateReconciliationCARESAct	0
CY2022	mygn	Income Tax Reconciliation Cares Act IncomeTaxReconciliationCARESAct	0	usd
CY2022	mygn	Effective Income Tax Rate Reconciliation Cares Act EffectiveIncomeTaxRateReconciliationCARESAct	0
CY2021	mygn	Income Tax Reconciliation Cares Act IncomeTaxReconciliationCARESAct	2700000	usd
CY2021	mygn	Effective Income Tax Rate Reconciliation Cares Act EffectiveIncomeTaxRateReconciliationCARESAct	-0.047
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	0	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Meals And Entertainment EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment	0
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	0	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Meals And Entertainment EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment	0
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Meals And Entertainment IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment	100000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Meals And Entertainment EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment	-0.002
CY2023	mygn	Income Tax Reconciliation Nondeductible Expense Officers Compensation IncomeTaxReconciliationNondeductibleExpenseOfficersCompensation	3000000.0	usd
CY2023	mygn	Effective Income Tax Rate Reconciliation Non Deductible Officer Compensation EffectiveIncomeTaxRateReconciliationNonDeductibleOfficerCompensation	-0.011
CY2022	mygn	Income Tax Reconciliation Nondeductible Expense Officers Compensation IncomeTaxReconciliationNondeductibleExpenseOfficersCompensation	3500000	usd
CY2022	mygn	Effective Income Tax Rate Reconciliation Non Deductible Officer Compensation EffectiveIncomeTaxRateReconciliationNonDeductibleOfficerCompensation	-0.025
CY2021	mygn	Income Tax Reconciliation Nondeductible Expense Officers Compensation IncomeTaxReconciliationNondeductibleExpenseOfficersCompensation	3300000	usd
CY2021	mygn	Effective Income Tax Rate Reconciliation Non Deductible Officer Compensation EffectiveIncomeTaxRateReconciliationNonDeductibleOfficerCompensation	-0.058
CY2023	mygn	Income Tax Reconciliation Non Deductible Legal Settlement IncomeTaxReconciliationNonDeductibleLegalSettlement	0	usd
CY2023	mygn	Effective Income Tax Rate Reconciliation Non Deductible Legal Settlements EffectiveIncomeTaxRateReconciliationNonDeductibleLegalSettlements	0
CY2022	mygn	Income Tax Reconciliation Non Deductible Legal Settlement IncomeTaxReconciliationNonDeductibleLegalSettlement	0	usd
CY2022	mygn	Effective Income Tax Rate Reconciliation Non Deductible Legal Settlements EffectiveIncomeTaxRateReconciliationNonDeductibleLegalSettlements	0
CY2021	mygn	Income Tax Reconciliation Non Deductible Legal Settlement IncomeTaxReconciliationNonDeductibleLegalSettlement	2500000	usd
CY2021	mygn	Effective Income Tax Rate Reconciliation Non Deductible Legal Settlements EffectiveIncomeTaxRateReconciliationNonDeductibleLegalSettlements	-0.045
CY2023	mygn	Income Tax Reconciliation Acquisitions Dispositions And Contingent Consideration IncomeTaxReconciliationAcquisitionsDispositionsAndContingentConsideration	100000	usd
CY2023	mygn	Effective Income Tax Rate Reconciliation Acquisitions Dispositions And Contingent Consideration EffectiveIncomeTaxRateReconciliationAcquisitionsDispositionsAndContingentConsideration	0
CY2022	mygn	Income Tax Reconciliation Acquisitions Dispositions And Contingent Consideration IncomeTaxReconciliationAcquisitionsDispositionsAndContingentConsideration	-100000	usd
CY2022	mygn	Effective Income Tax Rate Reconciliation Acquisitions Dispositions And Contingent Consideration EffectiveIncomeTaxRateReconciliationAcquisitionsDispositionsAndContingentConsideration	0.001
CY2021	mygn	Income Tax Reconciliation Acquisitions Dispositions And Contingent Consideration IncomeTaxReconciliationAcquisitionsDispositionsAndContingentConsideration	-23000000.0	usd
CY2021	mygn	Effective Income Tax Rate Reconciliation Acquisitions Dispositions And Contingent Consideration EffectiveIncomeTaxRateReconciliationAcquisitionsDispositionsAndContingentConsideration	0.403
CY2023	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1500000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.007
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1400000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.009
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	800000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.014
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1100000	usd
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.004
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-28600000	usd
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.203
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-29900000	usd
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.523
CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	77100000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	66600000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	5000000.0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	3600000	usd
CY2023Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	20800000	usd
CY2022Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	19900000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	3600000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1600000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1100000	usd
CY2023Q4	mygn	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	28000000.0	usd
CY2022Q4	mygn	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	35200000	usd
CY2023Q4	mygn	Deferred Tax Asset Research And Experimental Expense Capitalization DeferredTaxAssetResearchAndExperimentalExpenseCapitalization	38400000	usd
CY2022Q4	mygn	Deferred Tax Asset Research And Experimental Expense Capitalization DeferredTaxAssetResearchAndExperimentalExpenseCapitalization	21200000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	22500000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	10800000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3200000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	3600000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	195000000.0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	160900000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	95000000.0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	42400000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	100000000.0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	118500000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	84200000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	93800000	usd
CY2023Q4	mygn	Deferred Tax Liabilities Lease Right Of Use Assets DeferredTaxLiabilitiesLeaseRightOfUseAssets	15500000	usd
CY2022Q4	mygn	Deferred Tax Liabilities Lease Right Of Use Assets DeferredTaxLiabilitiesLeaseRightOfUseAssets	25400000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1900000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2800000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	101600000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	122000000.0	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1600000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	3500000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1600000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	48100000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	43900000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	32100000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	37600000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	800000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	12900000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1400000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	200000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	2000000.0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	2800000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	700000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	5100000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	100000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	48100000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	43900000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	32100000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	6400000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	4100000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	3300000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	30200000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	26800000	usd
CY2023	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	-7700000	usd
CY2022	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	13000000	usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	16900000	usd
CY2023	us-gaap	Lease Cost LeaseCost	25900000	usd
CY2023	us-gaap	Variable Lease Cost VariableLeaseCost	3500000	usd
CY2022	us-gaap	Lease Cost LeaseCost	22100000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	3200000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	22500000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	17900000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	11600000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	11700000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	11800000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	85700000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	161200000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	47600000	usd
CY2023Q4	mygn	Operating Lease Liability Including Leases Not Yet Commenced OperatingLeaseLiabilityIncludingLeasesNotYetCommenced	113600000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	16200000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	97400000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y4M24D
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0634
CY2022	mygn	Change In Operating Lease Right Of Use Asset ChangeInOperatingLeaseRightOfUseAsset	46900000	usd
CY2021	mygn	Change In Operating Lease Right Of Use Asset ChangeInOperatingLeaseRightOfUseAsset	41800000	usd
CY2023	mygn	Change In Operating Lease Liability ChangeInOperatingLeaseLiability	-36700000	usd
CY2022	mygn	Change In Operating Lease Liability ChangeInOperatingLeaseLiability	46900000	usd
CY2021	mygn	Change In Operating Lease Liability ChangeInOperatingLeaseLiability	48100000	usd
CY2023	mygn	Tenant Improvement Allowance Not Yet Received TenantImprovementAllowanceNotYetReceived	0	usd
CY2023	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.50
CY2023	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.04
CY2023	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	10000000.0	usd
CY2022	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	9000000.0	usd
CY2021	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	8400000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	140900000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	169700000	usd
CY2023Q4	us-gaap	Assets Assets	1146500000	usd
CY2022Q4	us-gaap	Assets Assets	1198700000	usd
CY2022	mygn	Tenant Improvement Allowance Not Yet Received TenantImprovementAllowanceNotYetReceived	22900000	usd
CY2021	mygn	Tenant Improvement Allowance Not Yet Received TenantImprovementAllowanceNotYetReceived	0	usd
CY2023	mygn	Purchases Of Property Plant And Equipment And Capitalization Of Internal Use Software In Accounts Payable And Accrued Liabilities PurchasesOfPropertyPlantAndEquipmentAndCapitalizationOfInternalUseSoftwareInAccountsPayableAndAccruedLiabilities	6900000	usd
CY2022	mygn	Purchases Of Property Plant And Equipment And Capitalization Of Internal Use Software In Accounts Payable And Accrued Liabilities PurchasesOfPropertyPlantAndEquipmentAndCapitalizationOfInternalUseSoftwareInAccountsPayableAndAccruedLiabilities	10000000.0	usd
CY2021	us-gaap	Inventory Firm Purchase Commitment Loss InventoryFirmPurchaseCommitmentLoss	5200000	usd
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	6500000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	139300000	usd
CY2023	us-gaap	Income Taxes Paid IncomeTaxesPaid	1900000	usd
CY2022	us-gaap	Income Taxes Paid IncomeTaxesPaid	1800000	usd
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	4600000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	1400000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	0	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	4400000	usd
CY2023	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	0	usd
CY2022	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	0	usd
CY2021	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	90000000.0	usd
CY2023	mygn	Change In Operating Lease Right Of Use Asset ChangeInOperatingLeaseRightOfUseAsset	-31000000.0	usd
CY2021	mygn	Purchases Of Property Plant And Equipment And Capitalization Of Internal Use Software In Accounts Payable And Accrued Liabilities PurchasesOfPropertyPlantAndEquipmentAndCapitalizationOfInternalUseSoftwareInAccountsPayableAndAccruedLiabilities	0	usd
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false

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0000899923-24-000018-index.html	Edgar Link	pending
0000899923-24-000018.txt	Edgar Link	pending
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severanceandchangeofcontro.htm	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable
mygn-20231231_lab.xml	Edgar Link	unprocessable
mygn-20231231_pre.xml	Edgar Link	unprocessable
mygn-20231231_cal.xml	Edgar Link	unprocessable

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$MYGN
MYRIAD GENETICS INC Stock $mygn

2024 Q1 Form 10-K Financial Statement

#000089992324000018 Filed on February 28, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MYGN MYRIAD GENETICS INC Stock $mygn

2024 Q1 Form 10-K Financial Statement

#000089992324000018 Filed on February 28, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MYGN
MYRIAD GENETICS INC Stock $mygn