$ARWR
ARROWHEAD PHARMACEUTICALS, INC. Stock $arwr

$arwr Overview Financials Valuation SEC Filings Company Website

2022 Q4 Form 10-K Financial Statement

#000162828022030869 Filed on November 28, 2022

Income Statement

Concept	2022 Q4	2022 Q3	2022
Revenue	$62.55M	$31.58M	$243.2M
YoY Change	127.95%	-17.52%	75.89%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin	$22.65M	$31.62M	$130.1M
YoY Change	-7.89%	-15.41%	62.46%
% of Gross Profit
Research & Development	$83.70M	$81.12M	$297.3M
YoY Change	31.61%	28.2%	49.42%
% of Gross Profit
Depreciation & Amortization	$2.300M	$2.660M	$8.700M
YoY Change	9.52%	6.23%	31.82%
% of Gross Profit
Operating Expenses	$104.7M	$115.4M	$421.7M
YoY Change	15.34%	11.86%	46.78%
Operating Profit	-$42.13M		-$178.5M
YoY Change	-33.46%		19.77%
Interest Expense	-$167.0K	$1.583M	$5.033M
YoY Change	-114.45%	37.89%	-17.76%
% of Operating Profit
Other Income/Expense, Net	$340.0K	$90.00K	$5.798M
YoY Change	-24.28%	-75.21%	180.1%
Pretax Income	-$41.79M	-$82.16M	-$172.7M
YoY Change	-33.53%	29.64%	22.62%
Income Tax	$17.00K	$3.785M	$3.785M
% Of Pretax Income
Net Earnings	-$41.33M	-$85.51M	-$176.1M
YoY Change	-34.27%	34.93%	25.0%
Net Earnings / Revenue	-66.07%	-270.82%	-72.39%
Basic Earnings Per Share	-$0.39		-$1.67
Diluted Earnings Per Share	-$0.39	-$807.6K	-$1.67
COMMON SHARES
Basic Shares Outstanding	106.0M shares	105.8M shares	105.4M shares
Diluted Shares Outstanding	106.0M shares		105.4M shares

Balance Sheet

Concept	2022 Q4	2022 Q3	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$501.8M	$376.4M	$376.4M
YoY Change	130.63%	20.98%	2.34%
Cash & Equivalents	$202.2M	$108.0M	$108.0M
Short-Term Investments	$299.6M	$268.4M	$268.4M
Other Short-Term Assets	$25.19M	$20.20M	$27.49M
YoY Change	215.09%	822.14%	319.55%
Inventory
Prepaid Expenses	$8.412M	$7.289M
Receivables	$39.57M	$1.410M	$1.410M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$575.0M	$405.3M	$405.3M
YoY Change	69.98%	5.38%	5.38%
LONG-TERM ASSETS
Property, Plant & Equipment	$147.3M	$110.3M	$168.6M
YoY Change	181.65%	126.6%	155.36%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$115.8M	$105.9M	$105.9M
YoY Change	-46.79%	-56.89%	-56.89%
Other Assets	$210.0K	$218.0K	$218.0K
YoY Change	-23.08%	-19.85%	-19.85%
Total Long-Term Assets	$316.5M	$286.6M	$286.6M
YoY Change	5.4%	-11.95%	-11.95%
TOTAL ASSETS
Total Short-Term Assets	$575.0M	$405.3M	$405.3M
Total Long-Term Assets	$316.5M	$286.6M	$286.6M
Total Assets	$891.5M	$691.9M	$691.9M
YoY Change	39.61%	-2.56%	-2.56%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$796.0K	$2.868M	$2.868M
YoY Change	-80.43%	-69.67%	-69.67%
Accrued Expenses	$48.17M	$46.86M	$61.88M
YoY Change	98.15%	234.66%	137.79%
Deferred Revenue	$66.28M	$74.10M
YoY Change		-33.28%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$122.0M	$138.9M	$138.9M
YoY Change	-10.96%	-5.25%	-5.25%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$373.1M	$134.8M	$134.8M
YoY Change	189.35%	-12.95%	-12.95%
Total Long-Term Liabilities	$373.1M	$134.8M	$134.8M
YoY Change	189.35%	-12.95%	-12.95%
TOTAL LIABILITIES
Total Short-Term Liabilities	$122.0M	$138.9M	$138.9M
Total Long-Term Liabilities	$373.1M	$134.8M	$134.8M
Total Liabilities	$495.1M	$273.6M	$293.4M
YoY Change	86.15%	-9.2%	-2.62%
SHAREHOLDERS EQUITY
Retained Earnings	-$862.1M	-$820.8M
YoY Change		27.31%
Common Stock	$1.239B	$1.219B
YoY Change		15.74%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$377.0M	$398.5M	$398.5M
YoY Change
Total Liabilities & Shareholders Equity	$891.5M	$691.9M	$691.9M
YoY Change	39.61%	-2.56%	-2.56%

Cashflow Statement

Concept	2022 Q4	2022 Q3	2022
OPERATING ACTIVITIES
Net Income	-$41.33M	-$85.51M	-$176.1M
YoY Change	-34.27%	34.93%	25.0%
Depreciation, Depletion And Amortization	$2.300M	$2.660M	$8.700M
YoY Change	9.52%	6.23%	31.82%
Cash From Operating Activities	-$75.52M	-$68.67M	-$136.1M
YoY Change	23.1%	184.72%	-179.5%
INVESTING ACTIVITIES
Capital Expenditures	$38.91M	-$32.71M	$52.78M
YoY Change	-773.43%	298.96%	-323.94%
Acquisitions
YoY Change
Other Investing Activities	-$41.78M	$69.16M	$47.36M
YoY Change	51.35%	-162.84%	-140.1%
Cash From Investing Activities	-$80.69M	$36.45M	-$5.417M
YoY Change	141.71%	-130.82%	-96.18%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$0.00
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$250.6M	855.0K	$65.19M
YoY Change	13193.16%	4.91%	476.61%
NET CHANGE
Cash From Operating Activities	-$75.52M	-68.67M	-$136.1M
Cash From Investing Activities	-$80.69M	36.45M	-$5.417M
Cash From Financing Activities	$250.6M	855.0K	$65.19M
Net Change In Cash	$94.37M	-31.37M	-$76.36M
YoY Change	-201.64%	-77.84%	-286.93%
FREE CASH FLOW
Cash From Operating Activities	-$75.52M	-$68.67M	-$136.1M
Capital Expenditures	$38.91M	-$32.71M	$52.78M
Free Cash Flow	-$114.4M	-$35.96M	-$188.9M
YoY Change	105.92%	125.88%	-196.98%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	usd
CY2022Q3	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	0	usd
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0000879407
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-09-30
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	001-38042
CY2022	dei	Entity Registrant Name EntityRegistrantName	ARROWHEAD PHARMACEUTICALS, INC.
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	46-0408024
CY2022	dei	City Area Code CityAreaCode	626
CY2022	dei	Local Phone Number LocalPhoneNumber	304-3400
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	177 E. Colorado Blvd
CY2022	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 700
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Pasadena
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	91105
CY2022	dei	Security12b Title Security12bTitle	Common Stock, $0.001 par value
CY2022	dei	Trading Symbol TradingSymbol	ARWR
CY2022	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q1	dei	Entity Public Float EntityPublicFloat	4100000000	usd
CY2022Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	106005722	shares
CY2021Q3	us-gaap	Assets Current AssetsCurrent	384597000	usd
CY2022	dei	Auditor Firm AuditorFirmId	468
CY2022	dei	Auditor Name AuditorName	Rose, Snyder & Jacobs LLP
CY2022	dei	Auditor Location AuditorLocation	Encino, California
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	108005000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	184434000	usd
CY2022Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1410000	usd
CY2021Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	10255000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	268391000	usd
CY2021Q3	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	56627000	usd
CY2022Q3	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	0	usd
CY2021Q3	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	126728000	usd
CY2022Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	7289000	usd
CY2021Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	4362000	usd
CY2022Q3	us-gaap	Other Assets Current OtherAssetsCurrent	20204000	usd
CY2021Q3	us-gaap	Other Assets Current OtherAssetsCurrent	2191000	usd
CY2022Q3	us-gaap	Assets Current AssetsCurrent	405299000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	110297000	usd
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	48675000	usd
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CY2021Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	272000	usd
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CY2022Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	46856000	usd
CY2021Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	14001000	usd
CY2022Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	12251000	usd
CY2021Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	9773000	usd
CY2022Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2776000	usd
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2250000	usd
CY2022Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	74099000	usd
CY2021Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	111055000	usd
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CY2021Q3	us-gaap	Liabilities Current LiabilitiesCurrent	146536000	usd
CY2022Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	78800000	usd
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	23295000	usd
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CY2022Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	145000000	shares
CY2022Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	145000000	shares
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CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	104327000	shares
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	104327000	shares
CY2022Q3	us-gaap	Common Stock Value CommonStockValue	198000	usd
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CY2022Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1219213000	usd
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CY2022Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-136000	usd
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-69000	usd
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CY2022Q3	us-gaap	Minority Interest MinorityInterest	19819000	usd
CY2021Q3	us-gaap	Minority Interest MinorityInterest	0	usd
CY2022Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	418339000	usd
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CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	243231000	usd
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CY2020	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	usd
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	250479000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	410000	usd
CY2020	arwr	Noncontrolling Interest Increase From Deconsolidation NoncontrollingInterestIncreaseFromDeconsolidation	555000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	-84553000	usd
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	461779000	usd
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	461779000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	76673000	usd
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	11305000	usd
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	usd
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-87000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	-140848000	usd
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	408822000	usd
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	408822000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	120893000	usd
CY2022	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	5185000	usd
CY2022	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-67000	usd
CY2022	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	60000000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	-176494000	usd
CY2022Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	418339000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	-176494000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	-140848000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	-84553000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	120893000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	76673000	usd
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	43383000	usd
CY2022	us-gaap	Gain Loss On Investments GainLossOnInvestments	-4432000	usd
CY2021	us-gaap	Gain Loss On Investments GainLossOnInvestments	1708000	usd
CY2020	us-gaap	Gain Loss On Investments GainLossOnInvestments	20000	usd
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	10421000	usd
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	8267000	usd
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	5942000	usd
CY2022	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	-2910000	usd
CY2021	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	-266000	usd
CY2020	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	-525000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-8845000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	9409000	usd
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	184000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	19291000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	360000	usd
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	387000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-6589000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	2628000	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-821000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	17750000	usd
CY2021	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	9522000	usd
CY2020	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	1989000	usd
CY2022	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-112501000	usd
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	223258000	usd
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-63514000	usd
CY2022	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	13428000	usd
CY2021	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	3192000	usd
CY2020	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	1124000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	65000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-169000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	715000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-136131000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	171312000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-95801000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	52777000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	23567000	usd
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	11952000	usd
CY2022	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	223391000	usd
CY2021	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	240703000	usd
CY2020	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	278964000	usd
CY2022	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	270751000	usd
CY2021	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	122592000	usd
CY2020	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	50138000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-5417000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-141678000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-240778000	usd
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	5186000	usd
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	11305000	usd
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	7469000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	250479000	usd
CY2022	us-gaap	Proceeds From Contributed Capital ProceedsFromContributedCapital	60000000	usd
CY2021	us-gaap	Proceeds From Contributed Capital ProceedsFromContributedCapital	0	usd
CY2020	us-gaap	Proceeds From Contributed Capital ProceedsFromContributedCapital	0	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	65186000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	11305000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	257948000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-76362000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	40939000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-78631000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-67000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-88000	usd
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	410000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	184434000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	184434000	usd
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	143583000	usd
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	221804000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	108005000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	184434000	usd
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	143583000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	0	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	0	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	0	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-2000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-2000	usd
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	103000	usd
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	143583000	usd
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	221804000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	108005000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	184434000	usd
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	143583000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	0	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	0	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	0	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-2000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-2000	usd
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	103000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	108000000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	108000000	usd
CY2022Q3	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	7300000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	268400000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Noncurrent HeldToMaturitySecuritiesNoncurrent	105900000	usd
CY2022	arwr	Increase Decrease In Cash And Investments IncreaseDecreaseInCashAndInvestments	131100000	usd
CY2022Q3	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	7300000	usd
CY2021Q3	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	2400000	usd
CY2022Q3	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	7300000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	268400000	usd
CY2022	arwr	Increase Decrease In Cash And Investments IncreaseDecreaseInCashAndInvestments	131100000	usd
CY2022Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	122300000	usd
CY2021Q3	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	2400000	usd
CY2022	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	Concentration of Credit RiskFinancial instruments that potentially expose the Company to concentration of credit risk primarily consist of cash and cash equivalents and investments. As of September 30, 2022 and 2021, the Company’s investments were primarily invested in money market funds, certificates of deposit, commercial paper, and corporate debt securities through highly rated financial institutions. The Company also maintains several bank accounts primarily at three financial institutions for its operations. These accounts are insured by the Federal Deposit Insurance Corporation (FDIC) for up to $250,000 per institution. Management believes the Company is not exposed to significant credit risk due to the financial position of the depository institutions in which these deposits are held.
CY2022Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	122300000	usd
CY2021Q3	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	0	usd
CY2022	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	Concentration of Credit RiskFinancial instruments that potentially expose the Company to concentration of credit risk primarily consist of cash and cash equivalents and investments. As of September 30, 2022 and 2021, the Company’s investments were primarily invested in money market funds, certificates of deposit, commercial paper, and corporate debt securities through highly rated financial institutions. The Company also maintains several bank accounts primarily at three financial institutions for its operations. These accounts are insured by the Federal Deposit Insurance Corporation (FDIC) for up to $250,000 per institution. Management believes the Company is not exposed to significant credit risk due to the financial position of the depository institutions in which these deposits are held.
CY2021	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	usd
CY2022	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	usd
CY2021	us-gaap	Impairment Of Intangible Assets Finitelived ImpairmentOfIntangibleAssetsFinitelived	0	usd
CY2022Q3	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	0	usd
CY2022Q3	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	0	usd
CY2021Q3	us-gaap	Business Combination Contingent Consideration Liability Noncurrent BusinessCombinationContingentConsiderationLiabilityNoncurrent	0	usd
CY2021Q3	us-gaap	Land Land	0	usd
CY2022Q3	us-gaap	Land Land	2996000	usd
CY2022Q3	arwr	Research Equipment Gross ResearchEquipmentGross	38283000	usd
CY2021Q3	arwr	Research Equipment Gross ResearchEquipmentGross	27500000	usd
CY2021Q3	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	2170000	usd
CY2022Q3	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	2182000	usd
CY2021Q3	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	2170000	usd
CY2022Q3	us-gaap	Land Land	2996000	usd
CY2021Q3	us-gaap	Land Land	0	usd
CY2021Q3	arwr	Research Equipment Gross ResearchEquipmentGross	27500000	usd
CY2022Q3	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	42017000	usd
CY2021Q3	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	41524000	usd
CY2022Q3	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	2182000	usd
CY2021Q3	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	2170000	usd
CY2022Q3	us-gaap	Land Land	2996000	usd
CY2021Q3	us-gaap	Land Land	0	usd
CY2022Q3	arwr	Research Equipment Gross ResearchEquipmentGross	38283000	usd
CY2021Q3	arwr	Research Equipment Gross ResearchEquipmentGross	27500000	usd
CY2022Q3	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	42017000	usd
CY2021Q3	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	41524000	usd
CY2022Q3	us-gaap	Construction In Progress Gross ConstructionInProgressGross	56373000	usd
CY2021Q3	us-gaap	Construction In Progress Gross ConstructionInProgressGross	345000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	141851000	usd
CY2021Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	71539000	usd
CY2022Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	31554000	usd
CY2021Q3	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	41524000	usd
CY2022Q3	us-gaap	Construction In Progress Gross ConstructionInProgressGross	56373000	usd
CY2021Q3	us-gaap	Construction In Progress Gross ConstructionInProgressGross	345000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	141851000	usd
CY2021Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	71539000	usd
CY2022Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	31554000	usd
CY2021Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	22864000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	110297000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	8700000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6600000	usd
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4200000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	268391000	usd
CY2022Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Gain Current DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedGainCurrent	0	usd
CY2022Q3	us-gaap	Construction In Progress Gross ConstructionInProgressGross	56373000	usd
CY2021Q3	us-gaap	Construction In Progress Gross ConstructionInProgressGross	345000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	141851000	usd
CY2021Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	71539000	usd
CY2022Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	31554000	usd
CY2021Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	22864000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	110297000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	8700000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6600000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	268391000	usd
CY2022Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Gain Current DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedGainCurrent	0	usd
CY2022Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Loss Current DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedLossCurrent	3661000	usd
CY2022Q3	us-gaap	Debt Securities Held To Maturity Fair Value Current DebtSecuritiesHeldToMaturityFairValueCurrent	264730000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Noncurrent HeldToMaturitySecuritiesNoncurrent	105872000	usd
CY2021Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	22864000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	110297000	usd
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	48675000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	8700000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6600000	usd
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4200000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	268391000	usd
CY2022Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Gain Current DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedGainCurrent	0	usd
CY2022Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Loss Current DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedLossCurrent	3661000	usd
CY2022Q3	us-gaap	Debt Securities Held To Maturity Fair Value Current DebtSecuritiesHeldToMaturityFairValueCurrent	264730000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Noncurrent HeldToMaturitySecuritiesNoncurrent	105872000	usd
CY2022Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Gain Noncurrent DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedGainNoncurrent	0	usd
CY2022Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Loss Noncurrent DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedLossNoncurrent	5569000	usd
CY2022Q3	us-gaap	Debt Securities Held To Maturity Fair Value Noncurrent DebtSecuritiesHeldToMaturityFairValueNoncurrent	100303000	usd
CY2022Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	0	usd
CY2022Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Loss Current DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedLossCurrent	3661000	usd
CY2022Q3	us-gaap	Debt Securities Held To Maturity Fair Value Current DebtSecuritiesHeldToMaturityFairValueCurrent	264730000	usd
CY2022Q3	us-gaap	Held To Maturity Securities Noncurrent HeldToMaturitySecuritiesNoncurrent	105872000	usd
CY2022Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Gain Noncurrent DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedGainNoncurrent	0	usd
CY2022Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Loss Noncurrent DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedLossNoncurrent	5569000	usd
CY2022Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	0	usd
CY2022Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	0	usd
CY2022Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	0	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	0	usd
CY2021Q3	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	56627000	usd
CY2021Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Gain Current DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedGainCurrent	803000	usd
CY2021Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Loss Current DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedLossCurrent	0	usd
CY2021Q3	us-gaap	Debt Securities Held To Maturity Fair Value Current DebtSecuritiesHeldToMaturityFairValueCurrent	57430000	usd
CY2021Q3	us-gaap	Held To Maturity Securities Noncurrent HeldToMaturitySecuritiesNoncurrent	245595000	usd
CY2021Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Gain Noncurrent DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedGainNoncurrent	1151000	usd
CY2021Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Loss Noncurrent DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedLossNoncurrent	103000	usd
CY2022Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Gain Noncurrent DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedGainNoncurrent	0	usd
CY2022Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Loss Noncurrent DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedLossNoncurrent	5569000	usd
CY2022Q3	us-gaap	Debt Securities Held To Maturity Fair Value Noncurrent DebtSecuritiesHeldToMaturityFairValueNoncurrent	100303000	usd
CY2022Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	0	usd
CY2022Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	0	usd
CY2022Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	0	usd
CY2021Q3	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	56627000	usd
CY2021Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Gain Current DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedGainCurrent	803000	usd
CY2021Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Loss Current DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedLossCurrent	0	usd
CY2021Q3	us-gaap	Held To Maturity Securities Noncurrent HeldToMaturitySecuritiesNoncurrent	245595000	usd
CY2021Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Gain Noncurrent DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedGainNoncurrent	1151000	usd
CY2021Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Loss Noncurrent DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedLossNoncurrent	103000	usd
CY2021Q3	us-gaap	Debt Securities Held To Maturity Fair Value Noncurrent DebtSecuritiesHeldToMaturityFairValueNoncurrent	246643000	usd
CY2021Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	127481000	usd
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	0	usd
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	753000	usd
CY2022Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	0	usd
CY2022Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	0	usd
CY2022Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	0	usd
CY2021Q3	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	56627000	usd
CY2021Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Gain Current DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedGainCurrent	803000	usd
CY2021Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Loss Current DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedLossCurrent	0	usd
CY2021Q3	us-gaap	Debt Securities Held To Maturity Fair Value Current DebtSecuritiesHeldToMaturityFairValueCurrent	57430000	usd
CY2021Q3	us-gaap	Held To Maturity Securities Noncurrent HeldToMaturitySecuritiesNoncurrent	245595000	usd
CY2021Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Gain Noncurrent DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedGainNoncurrent	1151000	usd
CY2021Q3	arwr	Debt Securities Held To Maturity Accumulated Unrecognized Loss Noncurrent DebtSecuritiesHeldToMaturityAccumulatedUnrecognizedLossNoncurrent	103000	usd
CY2021Q3	us-gaap	Debt Securities Held To Maturity Fair Value Noncurrent DebtSecuritiesHeldToMaturityFairValueNoncurrent	246643000	usd
CY2021Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	127481000	usd
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	0	usd
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	753000	usd
CY2021Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	126728000	usd
CY2021Q3	us-gaap	Debt Securities Held To Maturity Fair Value Noncurrent DebtSecuritiesHeldToMaturityFairValueNoncurrent	246643000	usd
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	0	usd
CY2021Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	753000	usd
CY2021Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	126728000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1700000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1700000	usd
CY2021Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	126728000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1700000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1700000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	3462000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1700000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1700000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1700000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	3462000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	11962000	usd
CY2022Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2022Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	145000000	shares
CY2022Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	105960000	shares
CY2022Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2022Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2022Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2022Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	145000000	shares
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	104327000	shares
CY2022Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	3462000	usd
CY2022Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	11962000	usd
CY2022Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2022Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	145000000	shares
CY2022Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	105960000	shares
CY2022Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	105960000	shares
CY2022Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2022Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2022Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2022Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	145000000	shares
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	104327000	shares
CY2022Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	11962000	usd
CY2022Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2022Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	145000000	shares
CY2022Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	105960000	shares
CY2022Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	105960000	shares
CY2022Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2022Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2022Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2022Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	145000000	shares
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	104327000	shares
CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	104327000	shares
CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	104327000	shares
CY2021Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2021Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2021Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2022Q3	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	0	usd
CY2021Q4	arwr	Tax Increment Financing Award TaxIncrementFinancingAward	16000000	usd
CY2021Q4	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	2500000	usd
CY2022Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	58291000	usd
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	17346000	usd
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2250000	usd
CY2022Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	78800000	usd
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	23295000	usd
CY2022	us-gaap	Lease Cost LeaseCost	9763000	usd
CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	104327000	shares
CY2021Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2021Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2022Q3	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	0	usd
CY2021Q4	arwr	Tax Increment Financing Award TaxIncrementFinancingAward	16000000	usd
CY2021Q4	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	2500000	usd
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	17346000	usd
CY2022Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2776000	usd
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2250000	usd
CY2022Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	78800000	usd
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	23295000	usd
CY2022	us-gaap	Lease Cost LeaseCost	9763000	usd
CY2021	us-gaap	Lease Cost LeaseCost	5962000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	0	usd
CY2021Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2021Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2021Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2022Q3	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	0	usd
CY2021Q4	arwr	Tax Increment Financing Award TaxIncrementFinancingAward	16000000	usd
CY2021Q4	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	2500000	usd
CY2022Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	58291000	usd
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	17346000	usd
CY2022Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2776000	usd
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2250000	usd
CY2022Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	78800000	usd
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	23295000	usd
CY2022	us-gaap	Lease Cost LeaseCost	9763000	usd
CY2021	us-gaap	Lease Cost LeaseCost	5962000	usd
CY2020	us-gaap	Lease Cost LeaseCost	3201000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	300000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	0	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	5802000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	8094000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	12138000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	11297000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	102813000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	151944000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	70368000	usd
CY2022Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	81576000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	4500000	usd
CY2022Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y
CY2022Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.085
CY2021	us-gaap	Lease Cost LeaseCost	5962000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	0	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	5802000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	8094000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	11800000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	12138000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	11297000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	102813000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	70368000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	4500000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	3100000	usd
CY2022Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y
CY2022Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.085
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.085
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	5802000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	8094000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	11800000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	12138000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	11297000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	102813000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	151944000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	70368000	usd
CY2022Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	81576000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	4500000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	3100000	usd
CY2022Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y
CY2022Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.085
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.085
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.085
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2721384	shares
CY2022Q3	arwr	Share Based Compensation Arrangement By Share Based Payment Award Options And Equity Instruments Other Than Options Outstanding ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndEquityInstrumentsOtherThanOptionsOutstanding	6790815	shares
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3456239	shares
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	19.60
CY2022	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 Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	128635	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	47.73
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2721384	shares
CY2022Q3	arwr	Share Based Compensation Arrangement By Share Based Payment Award Options And Equity Instruments Other Than Options Outstanding ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndEquityInstrumentsOtherThanOptionsOutstanding	6790815	shares
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3456239	shares
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	19.60
CY2022	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 Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	128635	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	47.73
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	606220	shares
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2721384	shares
CY2022Q3	arwr	Share Based Compensation Arrangement By Share Based Payment Award Options And Equity Instruments Other Than Options Outstanding ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndEquityInstrumentsOtherThanOptionsOutstanding	6790815	shares
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3456239	shares
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	19.60
CY2022	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 Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	128635	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	47.73
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	606220	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	8.55
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	606220	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	8.55
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2721384	shares
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.73
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y10M24D
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	48114746	usd
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2351641	shares
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	16.93
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y6M
CY2022Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	46889825	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.004
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.011
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	8.55
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2721384	shares
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.73
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y10M24D
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	48114746	usd
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2351641	shares
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	16.93
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y6M
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.004
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.011
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.0040
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.018
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.862
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.904
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2721384	shares
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	20.73
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y10M24D
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	48114746	usd
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2351641	shares
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	16.93
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y6M
CY2022Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	46889825	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.004
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.011
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.0040
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.018
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.0040
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.018
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.862
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.904
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.920
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y3M
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y3M
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	48.64
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	36.35
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.862
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.920
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y3M
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y3M
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	48.64
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	36.35
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	usd
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.900
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.920
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y3M
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y3M
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	48.64
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	36.35
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	0	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	304000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	304000	usd
CY2021	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	2000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	3481000	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	3481000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	0	usd
CY2021	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	0	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	304000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	304000	usd
CY2021	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	2000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	3481000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	3481000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	0	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	304000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	304000	usd
CY2021	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	2000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	3481000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	0	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	3481000	usd
CY2021	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	0	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3785000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	usd
CY2021	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	0	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3785000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3785000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.086
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.070
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.070
CY2022	arwr	Effective Income Tax Rate Reconciliation Deductions Stock Compensation Percent EffectiveIncomeTaxRateReconciliationDeductionsStockCompensationPercent	-0.017
CY2021	arwr	Effective Income Tax Rate Reconciliation Deductions Stock Compensation Percent EffectiveIncomeTaxRateReconciliationDeductionsStockCompensationPercent	0.013
CY2020	arwr	Effective Income Tax Rate Reconciliation Deductions Stock Compensation Percent EffectiveIncomeTaxRateReconciliationDeductionsStockCompensationPercent	0.133
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.284
CY2021	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	0	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3785000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3785000	usd
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CY2021Q3	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	0	usd
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CY2022Q3	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	38810000	usd
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CY2021Q3	arwr	Deferred Tax Assets Right Of Use Assets Or Lease Liabilities DeferredTaxAssetsRightOfUseAssetsOrLeaseLiabilities	1938000	usd
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CY2021Q3	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	0	usd
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CY2022Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3481000	usd
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CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
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CY2019Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	3481000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2022Q3	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	usd
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CY2022Q3	arwr	Percentage Of Valuation Allowance PercentageOfValuationAllowance	1
CY2022Q3	arwr	Federal Net Operating Loss Carry Forward FederalNetOperatingLossCarryForward	504800000	usd
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CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
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CY2019Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	3481000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3481000	usd
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3500000	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3481000	usd
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3500000	usd
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	1400000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	1400000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	usd
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1700000	usd
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CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	900000	usd
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3500000	usd
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	1400000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	usd
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1700000	usd
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CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	1400000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	usd
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CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1700000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1300000	usd
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	900000	usd

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$ARWR
ARROWHEAD PHARMACEUTICALS, INC. Stock $arwr

2022 Q4 Form 10-K Financial Statement

#000162828022030869 Filed on November 28, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ARWR ARROWHEAD PHARMACEUTICALS, INC. Stock $arwr

2022 Q4 Form 10-K Financial Statement

#000162828022030869 Filed on November 28, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ARWR
ARROWHEAD PHARMACEUTICALS, INC. Stock $arwr