$INSM
INSMED Inc Stock $insm

$insm Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000110450622000008 Filed on February 17, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$56.12M	$188.5M	$41.42M
YoY Change	35.5%	14.63%	-9.38%
Cost Of Revenue	$13.29M	$44.15M	$10.86M
YoY Change	22.36%	10.73%	24.68%
Gross Profit	$42.84M	$144.3M	$30.55M
YoY Change	40.22%	15.87%	-17.44%
Gross Profit Margin	76.32%	76.57%	73.76%
Selling, General & Admin	$65.27M	$234.3M	$56.02M
YoY Change	16.5%	15.07%	11.57%
% of Gross Profit	152.36%	162.34%	183.37%
Research & Development	$76.35M	$272.7M	$67.81M
YoY Change	12.6%	50.56%	107.81%
% of Gross Profit	178.24%	189.0%	221.96%
Depreciation & Amortization	$3.650M	$9.100M	$3.840M
YoY Change	-4.95%	0.0%	8.47%
% of Gross Profit	8.52%	6.31%	12.57%
Operating Expenses	$142.9M	$272.7M	$125.1M
YoY Change	14.22%	50.56%	48.77%
Operating Profit	-$100.0M	-$375.1M	-$94.54M
YoY Change	5.82%	41.42%	100.8%
Interest Expense	-$11.29M	$40.47M	-$7.470M
YoY Change	51.12%	36.9%	40.68%
% of Operating Profit
Other Income/Expense, Net	-$2.652M	-$3.330M	$420.0K
YoY Change	-731.43%	-922.22%	-250.0%
Pretax Income	-$113.0M	-$436.4M	-$101.6M
YoY Change	11.25%	49.1%	92.92%
Income Tax	-$41.00K	-$1.758M	$620.0K
% Of Pretax Income
Net Earnings	-$113.0M	-$434.7M	-$102.2M
YoY Change	10.54%	47.8%	92.89%
Net Earnings / Revenue	-201.3%	-230.63%	-246.76%
Basic Earnings Per Share		-$3.88
Diluted Earnings Per Share	-$952.8K	-$3.88	-$998.8K
COMMON SHARES
Basic Shares Outstanding	118.4M shares	112.1M shares	101.9M shares
Diluted Shares Outstanding		112.1M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$766.8M	$716.8M	$532.8M
YoY Change	43.92%	34.53%	9.31%
Cash & Equivalents	$716.8M	$716.8M	$532.8M
Short-Term Investments	$50.00M
Other Short-Term Assets	$28.90M	$28.90M	$24.00M
YoY Change	20.41%	20.41%	18.81%
Inventory	$67.01M	$67.01M	$49.59M
Prepaid Expenses
Receivables	$24.35M	$24.35M	$16.56M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$837.0M	$837.0M	$622.9M
YoY Change	34.38%	34.38%	12.19%
LONG-TERM ASSETS
Property, Plant & Equipment	$52.96M	$95.52M	$53.95M
YoY Change	-1.85%	-1.73%	-10.35%
Goodwill	$136.1M		$0.00
YoY Change
Intangibles
YoY Change
Long-Term Investments	$50.04M	$50.04M
YoY Change
Other Assets	$50.99M	$50.99M	$26.80M
YoY Change	90.26%	90.26%	32.02%
Total Long-Term Assets	$406.5M	$406.5M	$173.3M
YoY Change	134.6%	134.55%	-7.4%
TOTAL ASSETS
Total Short-Term Assets	$837.0M	$837.0M	$622.9M
Total Long-Term Assets	$406.5M	$406.5M	$173.3M
Total Assets	$1.244B	$1.244B	$796.2M
YoY Change	56.19%	56.18%	7.26%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$35.78M	$35.78M	$42.85M
YoY Change	-16.5%	-16.59%	225.04%
Accrued Expenses	$60.67M	$98.77M	$37.81M
YoY Change	60.46%	31.87%	-6.36%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$609.0K	$609.0K	$1.100M
YoY Change	-44.64%	-44.64%	-8.33%
Total Short-Term Liabilities	$135.2M	$135.2M	$118.8M
YoY Change	13.77%	13.78%	39.38%
LONG-TERM LIABILITIES
Long-Term Debt	$566.6M	$580.7M	$356.3M
YoY Change	59.01%	56.52%	6.07%
Other Long-Term Liabilities	$20.07M	$117.2M	$9.178M
YoY Change	118.72%	285.47%	-13.48%
Total Long-Term Liabilities	$586.7M	$697.9M	$365.5M
YoY Change	60.51%	73.86%	5.47%
TOTAL LIABILITIES
Total Short-Term Liabilities	$135.2M	$135.2M	$118.8M
Total Long-Term Liabilities	$586.7M	$697.9M	$365.5M
Total Liabilities	$833.0M	$833.0M	$520.3M
YoY Change	60.12%	60.11%	8.25%
SHAREHOLDERS EQUITY
Retained Earnings	-$2.265B		-$1.831B
YoY Change	23.74%		19.14%
Common Stock	$1.187M		$1.028M
YoY Change	15.47%		14.6%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$410.5M	$410.5M	$275.9M
YoY Change
Total Liabilities & Shareholders Equity	$1.244B	$1.244B	$796.2M
YoY Change	56.19%	56.18%	7.26%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	-$113.0M	-$434.7M	-$102.2M
YoY Change	10.54%	47.8%	92.89%
Depreciation, Depletion And Amortization	$3.650M	$9.100M	$3.840M
YoY Change	-4.95%	0.0%	8.47%
Cash From Operating Activities	-$84.13M	-$363.3M	-$66.79M
YoY Change	25.96%	65.63%	50.43%
INVESTING ACTIVITIES
Capital Expenditures	-$1.142M	$7.289M	-$1.510M
YoY Change	-24.37%	16.81%	-88.42%
Acquisitions
YoY Change
Other Investing Activities	-$50.08M	-$57.00M
YoY Change
Cash From Investing Activities	-$51.22M	-$64.29M	-$1.510M
YoY Change	3291.92%	842.32%	-88.42%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$269.9M
YoY Change		9.77%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	5.710M	$612.5M	12.01M
YoY Change	-52.46%	126.03%	29.98%
NET CHANGE
Cash From Operating Activities	-84.13M	-$363.3M	-66.79M
Cash From Investing Activities	-51.22M	-$64.29M	-1.510M
Cash From Financing Activities	5.710M	$612.5M	12.01M
Net Change In Cash	-129.6M	$184.0M	-56.29M
YoY Change	130.31%	306.0%	16.78%
FREE CASH FLOW
Cash From Operating Activities	-$84.13M	-$363.3M	-$66.79M
Capital Expenditures	-$1.142M	$7.289M	-$1.510M
Free Cash Flow	-$82.99M	-$370.6M	-$65.28M
YoY Change	27.13%	64.28%	108.16%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001104506
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CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1081000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	0	USD
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	0-30739
CY2021	dei	Entity Registrant Name EntityRegistrantName	INSMED INC
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	VA
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	54-1972729
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	700 US Highway 202/206
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Bridgewater
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	NJ
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	08807
CY2021	dei	City Area Code CityAreaCode	908
CY2021	dei	Local Phone Number LocalPhoneNumber	977-9900
CY2021	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01 per share
CY2021	dei	Trading Symbol TradingSymbol	INSM
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Entity Shell Company EntityShellCompany	false
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CY2021	dei	Auditor Firm AuditorFirmId	42
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CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-254337000	USD
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	775000	USD
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	203000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-1000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-433879000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-293887000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-254338000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	208266000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-254337000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	19700000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	261074000	USD
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	1000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	26971000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	261674000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-294090000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	203000	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	26072000	USD
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	245866000	USD
CY2020	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	1000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	36158000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	275884000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-434654000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	775000	USD
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	22035000	USD
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	269886000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	196358000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt Subsequent Adjustments AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments	37846000	USD
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	2000	USD
CY2021	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	72007000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	46021000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-254337000	USD
CY2021	us-gaap	Depreciation Depreciation	9130000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	410468000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-434654000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-294090000	USD
CY2020	us-gaap	Depreciation Depreciation	9147000	USD
CY2019	us-gaap	Depreciation Depreciation	5188000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5052000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5003000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4993000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	46021000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	36158000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	26971000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-17689000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2021	insm	Amortization Of Debt Issuance Costs And Accretion Of Debt Discount AmortizationOfDebtIssuanceCostsAndAccretionOfDebtDiscount	31039000	USD
CY2020	insm	Amortization Of Debt Issuance Costs And Accretion Of Debt Discount AmortizationOfDebtIssuanceCostsAndAccretionOfDebtDiscount	20378000	USD
CY2019	insm	Amortization Of Debt Issuance Costs And Accretion Of Debt Discount AmortizationOfDebtIssuanceCostsAndAccretionOfDebtDiscount	19382000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1078000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1078000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	360000	USD
CY2021	insm	Noncash Operating Lease Expense NoncashOperatingLeaseExpense	12589000	USD
CY2020	insm	Noncash Operating Lease Expense NoncashOperatingLeaseExpense	5932000	USD
CY2019	insm	Noncash Operating Lease Expense NoncashOperatingLeaseExpense	9763000	USD
CY2021	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	7334000	USD
CY2020	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	USD
CY2019	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	8118000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-2670000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	13717000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	17456000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	21180000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	21281000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	5549000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	3114000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	8718000	USD
CY2021	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	24435000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	6261000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	16008000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-7575000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	29825000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-4966000	USD
CY2021	insm	Increase Decrease In Accrued Liabilities Accrued Compensation And Other Current Liabilities IncreaseDecreaseInAccruedLiabilitiesAccruedCompensationAndOtherCurrentLiabilities	4553000	USD
CY2020	insm	Increase Decrease In Accrued Liabilities Accrued Compensation And Other Current Liabilities IncreaseDecreaseInAccruedLiabilitiesAccruedCompensationAndOtherCurrentLiabilities	-4894000	USD
CY2019	insm	Increase Decrease In Accrued Liabilities Accrued Compensation And Other Current Liabilities IncreaseDecreaseInAccruedLiabilitiesAccruedCompensationAndOtherCurrentLiabilities	1721000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-363302000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-219348000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-250649000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7289000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	6240000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	42268000	USD
CY2021	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	50292000	USD
CY2020	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	0	USD
CY2019	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	0	USD
CY2021	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	6704000	USD
CY2020	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	USD
CY2019	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	USD
CY2021	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2020	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	582000	USD
CY2019	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-64285000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-6822000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-42268000	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	22037000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	26073000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	19701000	USD
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	269886000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	245866000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	261074000	USD
CY2020	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2021	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	12578000	USD
CY2019	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2021	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	225000000	USD
CY2020	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	USD
CY2019	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	USD
CY2021	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	575000000	USD
CY2020	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2019	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	15718000	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1081000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-936000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	4503000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	612546000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	271003000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	285278000	USD
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-933000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	494000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-4000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	184026000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	45327000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-7643000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	532756000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	487429000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	495072000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	716782000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	532756000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	487429000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	10890000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	9186000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	7883000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1558000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	814000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	339000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	716800000	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	50000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-434700000	USD
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">—The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States (GAAP) requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. The Company bases its estimates and judgments on historical experience and on various other assumptions. The amounts of assets and liabilities reported in the Company's balance sheets and the amounts of revenues and expenses reported for each period presented are affected by estimates and assumptions, which are used for, but not limited to, the accounting for revenue allowances, stock-based compensation, income taxes, loss contingencies, acquisition related intangibles including IPR&D and goodwill, fair value of contingent consideration, and accounting for research and development costs. Actual results could differ from those estimates.</span>
CY2021	us-gaap	Number Of Reporting Units NumberOfReportingUnits	1	reportingUnit
CY2020	insm	Fair Value Level1 Level2 Level3 Transfers Amount FairValueLevel1Level2Level3TransfersAmount	0	USD
CY2021	insm	Fair Value Level1 Level2 Level3 Transfers Amount FairValueLevel1Level2Level3TransfersAmount	0	USD
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	50000000	USD
CY2021	us-gaap	Available For Sale Debt Securities Gross Unrealized Loss AvailableForSaleDebtSecuritiesGrossUnrealizedLoss	200000	USD
CY2020Q4	insm	Availableforsale Securities Gross Unrealized Gain Loss Numberof Securities AvailableforsaleSecuritiesGrossUnrealizedGainLossNumberofSecurities	0	security
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-bottom:6pt;margin-top:6pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Concentration of Credit Risk</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">—Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents. The Company places its cash equivalents with high credit-quality financial institutions and may invest its short-term investments in US treasury securities, mutual funds and government agency bonds. The Company has established guidelines relative to credit ratings and maturities that seek to maintain safety and liquidity.</span></div><div style="margin-bottom:6pt;margin-top:6pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company is exposed to risks associated with extending credit to customers related to the sale of products. The Company does not require collateral to secure amounts due from its customers. The Company uses an expected loss methodology to calculate allowances for trade receivables. The Company's measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. The Company does not currently have a material allowance for collectible trade receivables. The following table presents the percentage of gross product revenue represented by the Company's three largest customers as of the year ended December 31, 2021 and 2020.</span></div><div style="margin-bottom:6pt;margin-top:6pt;text-align:center;text-indent:36pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:50.146%"><tr><td style="width:1.0%"/><td style="width:51.669%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:21.932%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.966%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:21.933%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr style="height:27pt"><td colspan="3" rowspan="2" style="padding:0 1pt"/><td colspan="9" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">Percentage of Total Gross Product Revenue</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr style="height:14pt"><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2021</span></td><td colspan="3" style="border-top:1pt solid #000;padding:0 1pt"/><td colspan="3" style="border-top:1pt solid #000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Customer A</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">27%</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">27 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Customer B</span></td><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">24%</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">28 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Customer C</span></td><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">24%</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">23 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">%</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><div style="margin-bottom:6pt;margin-top:6pt;text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company relies on third-party manufacturers and suppliers for manufacturing and supply of its products. The inability of the suppliers or manufacturers to fulfill supply requirements of the Company could materially impact future operating results. A change in the relationship with the suppliers or manufacturers, or an adverse change in their business, could materially impact future operating results.</span></div>
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	188461000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	164413000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Accumulated Allowance For Credit Loss ContractWithCustomerAssetAccumulatedAllowanceForCreditLoss	4971000	USD
CY2021	insm	Contract With Customer Asset Allowance For Current Period Sales ContractWithCustomerAssetAllowanceForCurrentPeriodSales	28135000	USD
CY2021	insm	Contract With Customer Asset Allowance For Prior Period Sales ContractWithCustomerAssetAllowanceForPriorPeriodSales	-476000	USD
CY2021	insm	Contract With Customer Assets Allowance For Credit Loss Paymentsand Credits ContractWithCustomerAssetsAllowanceForCreditLossPaymentsandCredits	24232000	USD
CY2021Q4	us-gaap	Contract With Customer Asset Accumulated Allowance For Credit Loss ContractWithCustomerAssetAccumulatedAllowanceForCreditLoss	8398000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Accumulated Allowance For Credit Loss ContractWithCustomerAssetAccumulatedAllowanceForCreditLoss	5635000	USD
CY2020	insm	Contract With Customer Asset Allowance For Current Period Sales ContractWithCustomerAssetAllowanceForCurrentPeriodSales	21975000	USD
CY2020	insm	Contract With Customer Asset Allowance For Prior Period Sales ContractWithCustomerAssetAllowanceForPriorPeriodSales	-288000	USD
CY2020	insm	Contract With Customer Assets Allowance For Credit Loss Paymentsand Credits ContractWithCustomerAssetsAllowanceForCreditLossPaymentsandCredits	22351000	USD
CY2020Q4	us-gaap	Contract With Customer Asset Accumulated Allowance For Credit Loss ContractWithCustomerAssetAccumulatedAllowanceForCreditLoss	4971000	USD
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.88
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.88
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.01
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.01
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-434654000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-294090000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-254337000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	112111000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	97605000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	84560000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	112111000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	97605000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	84560000	shares
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.01
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.01
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2021Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	29541000	USD
CY2020Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	21601000	USD
CY2021Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	18528000	USD
CY2020Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	18754000	USD
CY2021Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	18940000	USD
CY2020Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	9237000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	67009000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	49592000	USD
CY2021	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P12Y
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	5100000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	5100000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	5100000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	5100000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	5100000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	49261000	USD
CY2021	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	29600000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5052000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	73809000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	53682000	USD
CY2020	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	582000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5003000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	49261000	USD
CY2021Q4	us-gaap	Goodwill Goodwill	136100000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	90016000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	82303000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	37061000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	28350000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	52955000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	53953000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	9100000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	9100000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	5200000	USD
CY2020Q4	insm	Business Combination Deferred Payments Current BusinessCombinationDeferredPaymentsCurrent	0	USD
CY2021Q4	insm	Accrued Construction Liabilities Current AccruedConstructionLiabilitiesCurrent	551000	USD
CY2020Q4	insm	Accrued Construction Liabilities Current AccruedConstructionLiabilitiesCurrent	364000	USD
CY2021Q4	insm	Accrued Clinical Trial Expenses AccruedClinicalTrialExpenses	19410000	USD
CY2020Q4	insm	Accrued Clinical Trial Expenses AccruedClinicalTrialExpenses	6733000	USD
CY2021Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	10678000	USD
CY2020Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	8594000	USD
CY2021Q4	insm	Accrued Technical Operation Expenses AccruedTechnicalOperationExpenses	6187000	USD
CY2020Q4	insm	Accrued Technical Operation Expenses AccruedTechnicalOperationExpenses	9164000	USD
CY2021Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	6655000	USD
CY2020Q4	us-gaap	Accrued Royalties Current AccruedRoyaltiesCurrent	3423000	USD
CY2021Q4	us-gaap	Interest Payable Current InterestPayableCurrent	2175000	USD
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	3631000	USD
CY2021Q4	insm	Accrued Sales Allowancesand Related Costs AccruedSalesAllowancesandRelatedCosts	8275000	USD
CY2020Q4	insm	Accrued Sales Allowancesand Related Costs AccruedSalesAllowancesandRelatedCosts	5051000	USD
CY2021Q4	insm	Business Combination Deferred Payments Current BusinessCombinationDeferredPaymentsCurrent	4883000	USD
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	1851000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	847000	USD
CY2021Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	60665000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	37807000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1078000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1078000	USD
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1300000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1301000	USD
CY2021	insm	Finance Lease Cost FinanceLeaseCost	2378000	USD
CY2020	insm	Finance Lease Cost FinanceLeaseCost	2379000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	12125000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	8664000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	7043000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	9950000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	9527000	USD
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	14103000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	21441000	USD
CY2021	us-gaap	Lease Cost LeaseCost	21546000	USD
CY2020	us-gaap	Lease Cost LeaseCost	20993000	USD
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	1300000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	1301000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	14598000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	8813000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1081000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	936000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	12948000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1205000	USD
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P8Y7M6D
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P9Y7M6D
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P3Y9M18D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y4M24D
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.086
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.086
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.070
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.074
CY2021	us-gaap	Variable Lease Payment VariableLeasePayment	7000000	USD
CY2020	us-gaap	Variable Lease Payment VariableLeasePayment	9900000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	1819000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	11315000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	1670000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	7927000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	2556000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	7270000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	2615000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	7182000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	2673000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1218000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	10059000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	311000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	21392000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	35223000	USD
CY2021Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	6680000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	4255000	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	14712000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	30968000	USD
CY2021Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	609000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	14712000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	30968000	USD
CY2021	insm	Lessee Operating Lease Lease Not Yet Commenced Amount LesseeOperatingLeaseLeaseNotYetCommencedAmount	32300000	USD
CY2021Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	11539000	USD
CY2020Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	5646000	USD
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	221873000	USD
CY2020Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	88036000	USD
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	566588000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	356318000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	0	USD
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1413341	shares
CY2021	insm	Convertible Debt Interest Expense Total ConvertibleDebtInterestExpenseTotal	39173000	USD
CY2020	insm	Convertible Debt Interest Expense Total ConvertibleDebtInterestExpenseTotal	28263000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	225000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	575000000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	800000000	USD
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	8134000	USD
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	7885000	USD
CY2019	us-gaap	Interest Expense Debt InterestExpenseDebt	7883000	USD
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1890000	USD
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1397000	USD
CY2019	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1397000	USD
CY2021	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	29149000	USD
CY2020	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	18981000	USD
CY2019	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	17985000	USD
CY2019	insm	Convertible Debt Interest Expense Total ConvertibleDebtInterestExpenseTotal	27265000	USD
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000000	shares
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	200000000	shares
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1300000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1301000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	440000	USD
CY2021	us-gaap	Interest Expense InterestExpense	40473000	USD
CY2020	us-gaap	Interest Expense InterestExpense	29564000	USD
CY2019	us-gaap	Interest Expense InterestExpense	27705000	USD
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	118738266	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	118738266	shares
CY2021Q2	us-gaap	Sale Of Stock Price Per Share SaleOfStockPricePerShare	25.00
CY2021Q2	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	17500000	USD
CY2020Q2	us-gaap	Sale Of Stock Price Per Share SaleOfStockPricePerShare	23.25
CY2020Q2	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	13500000	USD
CY2019Q2	us-gaap	Sale Of Stock Price Per Share SaleOfStockPricePerShare	26.00
CY2019Q2	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	16000000	USD
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	5226409	shares
CY2021	insm	Share Based Compensation Arrangement By Share Based Payment Award Inducement Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardInducementOptionsGrantsInPeriodGross	1117020	shares
CY2020	insm	Share Based Compensation Arrangement By Share Based Payment Award Inducement Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardInducementOptionsGrantsInPeriodGross	996830	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	9381730	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.30
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	3434270	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	15.02
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	909713	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	11.87
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1678604	shares
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-201161000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	19.02
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CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	23.98
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	12263402	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.84
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	6028261	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	16.15
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y4M2D
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	70204000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-348845000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	4039360	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	30.18
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1235186	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	15.50
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	978616	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	24.35
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	14088960	shares
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CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y10M28D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	90317000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	7292851	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	17.97
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-207120000	USD
CY2021Q4	insm	Deferred Tax Assets License Payment DeferredTaxAssetsLicensePayment	4963000	USD
CY2020Q4	insm	Deferred Tax Assets License Payment DeferredTaxAssetsLicensePayment	5652000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-436412000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1800000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1400000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	800000	USD
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-87567000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-85568000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-52399000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-292688000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-253560000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	104000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	268000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	10000	USD
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1585000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	767000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1689000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1134000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1402000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	777000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2835000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-612000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3447000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1758000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1402000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	777000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Research And Development EffectiveIncomeTaxRateReconciliationNondeductibleExpenseResearchAndDevelopment	0.02
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Research And Development EffectiveIncomeTaxRateReconciliationNondeductibleExpenseResearchAndDevelopment	0.02
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.01
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2021	insm	Effective Income Tax Rate Reconciliation Permanent Items EffectiveIncomeTaxRateReconciliationPermanentItems	-0.01
CY2020	insm	Effective Income Tax Rate Reconciliation Permanent Items EffectiveIncomeTaxRateReconciliationPermanentItems	0
CY2019	insm	Effective Income Tax Rate Reconciliation Permanent Items EffectiveIncomeTaxRateReconciliationPermanentItems	-0.01
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.04
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.04
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.06
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Research And Development EffectiveIncomeTaxRateReconciliationNondeductibleExpenseResearchAndDevelopment	0.04
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CY2021Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	1417000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	3767000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.01
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.01
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CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.32
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.32
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CY2020	insm	Effective Income Tax Rate Reconciliation Change In Foreign Trading Status Percent EffectiveIncomeTaxRateReconciliationChangeInForeignTradingStatusPercent	0.04
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	471407000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	377093000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	140121000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	123305000	USD
CY2021Q4	insm	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	10641000	USD
CY2020Q4	insm	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	12421000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	25600000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	21664000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	11520000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	8550000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	665669000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	552452000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	587408000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	509761000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	78261000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	42691000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	15214000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	9163000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	9840000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	11054000	USD
CY2021Q4	insm	Deferred Tax Liabilities Convertible Debt DeferredTaxLiabilitiesConvertibleDebt	54914000	USD
CY2020Q4	insm	Deferred Tax Liabilities Convertible Debt DeferredTaxLiabilitiesConvertibleDebt	22474000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	79968000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	42691000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1707000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	78300000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	42700000	USD
CY2021	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	77600000	USD
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	96300000	USD
CY2021Q4	insm	Operating Loss Carryforwards Disallowed Interest Expense OperatingLossCarryforwardsDisallowedInterestExpense	12500000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	7400000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	5633000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4836000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	112000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	32000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1637000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	829000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	7382000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	5633000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	7400000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	5600000	USD
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	4900000	USD
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	3700000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	3200000	USD
CY2021Q4	us-gaap	Purchase Obligation PurchaseObligation	78200000	USD
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	1
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CY2021	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	3000000	USD
CY2020	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2900000	USD
CY2019	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2800000	USD

Files In Submission

Name	View Source	Status
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report.css	Edgar Link	pending
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$INSM
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2021 Q4 Form 10-K Financial Statement

#000110450622000008 Filed on February 17, 2022

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$INSM INSMED Inc Stock $insm

2021 Q4 Form 10-K Financial Statement

#000110450622000008 Filed on February 17, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$INSM
INSMED Inc Stock $insm