$KNSA
Kiniksa Pharmaceuticals Ltd

2020 Form 10-K Financial Statement

#000155837021001821 Filed on February 25, 2021

View on sec.gov

Income Statement

Concept 2020 2019 Q4 2019
Revenue $0.00 $0.00 $0.00
YoY Change
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin $45.32M $9.700M $34.96M
YoY Change 29.63% 21.1% 62.16%
% of Gross Profit
Research & Development $112.0M $22.89M $135.0M
YoY Change -17.01% -36.63% 55.9%
% of Gross Profit
Depreciation & Amortization $2.405M $570.0K $2.068M
YoY Change 16.3% 119.23% 623.08%
% of Gross Profit
Operating Expenses $157.4M $32.58M $170.0M
YoY Change -7.41% -26.19% 57.14%
Operating Profit -$157.4M -$170.0M
YoY Change -7.41% 57.14%
Interest Expense $1.130M $1.130M $6.050M
YoY Change -81.32% -34.68% 28.18%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income -$156.2M -$31.45M -$163.9M
YoY Change -4.69% -25.84% 58.46%
Income Tax $5.152M $350.0K -$2.047M
% Of Pretax Income
Net Earnings -$161.4M -$31.80M -$161.9M
YoY Change -0.3% -25.32% 56.81%
Net Earnings / Revenue
Basic Earnings Per Share -$2.61 -$2.99
Diluted Earnings Per Share -$2.61 -$579.2K -$2.99
COMMON SHARES
Basic Shares Outstanding 61.84M 54.05M
Diluted Shares Outstanding 61.84M 54.05M

Balance Sheet

Concept 2020 2019 Q4 2019
SHORT-TERM ASSETS
Cash & Short-Term Investments $323.5M $233.4M $233.4M
YoY Change 38.6% -24.05% -24.05%
Cash & Equivalents $114.0M $46.93M $46.90M
Short-Term Investments $209.4M $186.5M $186.5M
Other Short-Term Assets $9.800M $8.200M $8.200M
YoY Change 19.51% 28.12% 28.12%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets $333.2M $241.6M $241.6M
YoY Change 37.91% -23.0% -23.01%
LONG-TERM ASSETS
Property, Plant & Equipment $10.60M $6.398M $8.300M
YoY Change 27.71% -0.03% 29.69%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets $5.600M $4.600M $4.600M
YoY Change 21.74% 142.11% 142.11%
Total Long-Term Assets $16.30M $12.91M $12.90M
YoY Change 26.36% 57.4% 57.32%
TOTAL ASSETS
Total Short-Term Assets $333.2M $241.6M $241.6M
Total Long-Term Assets $16.30M $12.91M $12.90M
Total Assets $349.5M $254.5M $254.5M
YoY Change 37.33% -20.95% -20.96%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $500.0K $5.693M $5.700M
YoY Change -91.23% -47.77% -47.71%
Accrued Expenses $31.30M $20.42M $22.10M
YoY Change 41.63% -34.98% -29.62%
Deferred Revenue
YoY Change
Short-Term Debt $0.00 $0.00 $0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities $31.80M $27.83M $27.80M
YoY Change 14.39% -34.67% -34.74%
LONG-TERM LIABILITIES
Long-Term Debt $0.00 $0.00 $0.00
YoY Change
Other Long-Term Liabilities $5.700M $326.0K $1.300M
YoY Change 338.46% 226.0% 1200.0%
Total Long-Term Liabilities $5.700M $326.0K $1.300M
YoY Change 338.46% 226.0% 1200.0%
TOTAL LIABILITIES
Total Short-Term Liabilities $31.80M $27.83M $27.80M
Total Long-Term Liabilities $5.700M $326.0K $1.300M
Total Liabilities $37.50M $29.11M $29.10M
YoY Change 28.87% -31.82% -31.85%
SHAREHOLDERS EQUITY
Retained Earnings -$356.1M
YoY Change
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $311.9M $225.4M $225.4M
YoY Change
Total Liabilities & Shareholders Equity $349.5M $254.5M $254.5M
YoY Change 37.33% -20.95% -20.96%

Cashflow Statement

Concept 2020 2019 Q4 2019
OPERATING ACTIVITIES
Net Income -$161.4M -$31.80M -$161.9M
YoY Change -0.3% -25.32% 56.81%
Depreciation, Depletion And Amortization $2.405M $570.0K $2.068M
YoY Change 16.3% 119.23% 623.08%
Cash From Operating Activities -$136.5M -$24.17M -$158.4M
YoY Change -13.79% -12.55% 95.49%
INVESTING ACTIVITIES
Capital Expenditures $283.0K -$1.990M $3.203M
YoY Change -91.16% -50.5% -39.45%
Acquisitions
YoY Change
Other Investing Activities -$23.16M $3.910M $52.42M
YoY Change -144.18% -88.39% -122.41%
Cash From Investing Activities -$23.44M $1.910M $49.21M
YoY Change -147.64% -93.56% -120.57%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities 227.1M 380.0K 84.11M
YoY Change 170.0% 31.03% -75.74%
NET CHANGE
Cash From Operating Activities -136.5M -24.17M -158.4M
Cash From Investing Activities -23.44M 1.910M 49.21M
Cash From Financing Activities 227.1M 380.0K 84.11M
Net Change In Cash 67.11M -21.88M -25.05M
YoY Change -367.93% -1047.19% -194.43%
FREE CASH FLOW
Cash From Operating Activities -$136.5M -$24.17M -$158.4M
Capital Expenditures $283.0K -$1.990M $3.203M
Free Cash Flow -$136.8M -$22.18M -$161.6M
YoY Change -15.32% -6.1% 87.22%

Facts In Submission

Frame Concept Type Concept / XBRL Key Value Unit
CY2020 dei Entity Central Index Key
EntityCentralIndexKey
0001730430
CY2020 dei Current Fiscal Year End Date
CurrentFiscalYearEndDate
--12-31
CY2020 dei Document Fiscal Year Focus
DocumentFiscalYearFocus
2020
CY2020 dei Document Fiscal Period Focus
DocumentFiscalPeriodFocus
FY
CY2020 dei Amendment Flag
AmendmentFlag
false
CY2020Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
CY2019Q4 us-gaap Commitments And Contingencies
CommitmentsAndContingencies
CY2020 dei Document Type
DocumentType
10-K
CY2020 dei Document Annual Report
DocumentAnnualReport
true
CY2020 dei Document Period End Date
DocumentPeriodEndDate
2020-12-31
CY2020 dei Document Transition Report
DocumentTransitionReport
false
CY2020 dei Entity File Number
EntityFileNumber
001-38492
CY2020 dei Entity Registrant Name
EntityRegistrantName
Kiniksa Pharmaceuticals, Ltd.
CY2020 dei Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
D0
CY2020 dei Entity Tax Identification Number
EntityTaxIdentificationNumber
98-1327726
CY2020 dei Entity Address Address Line1
EntityAddressAddressLine1
Clarendon House
CY2020 dei Entity Address Address Line2
EntityAddressAddressLine2
2 Church Street
CY2020 dei Entity Address City Or Town
EntityAddressCityOrTown
Hamilton
CY2020 dei Entity Address Postal Zip Code
EntityAddressPostalZipCode
HM11
CY2020 dei Entity Address Country
EntityAddressCountry
BM
CY2020 dei City Area Code
CityAreaCode
808
CY2020 dei Local Phone Number
LocalPhoneNumber
189-6257
CY2020 dei Security12b Title
Security12bTitle
Class A Common Shares
CY2020 dei Trading Symbol
TradingSymbol
KNSA
CY2020 dei Security Exchange Name
SecurityExchangeName
NASDAQ
CY2020 dei Entity Well Known Seasoned Issuer
EntityWellKnownSeasonedIssuer
Yes
CY2020 dei Entity Voluntary Filers
EntityVoluntaryFilers
No
CY2020 dei Entity Current Reporting Status
EntityCurrentReportingStatus
Yes
CY2020 dei Entity Interactive Data Current
EntityInteractiveDataCurrent
Yes
CY2020 dei Entity Filer Category
EntityFilerCategory
Large Accelerated Filer
CY2020 dei Entity Small Business
EntitySmallBusiness
true
CY2020 dei Entity Emerging Growth Company
EntityEmergingGrowthCompany
false
CY2020 dei Icfr Auditor Attestation Flag
IcfrAuditorAttestationFlag
true
CY2020 dei Entity Shell Company
EntityShellCompany
false
CY2020Q2 dei Entity Public Float
EntityPublicFloat
712600000
CY2020Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
114038000
CY2019Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
46928000
CY2020Q4 us-gaap Short Term Investments
ShortTermInvestments
209444000
CY2019Q4 us-gaap Short Term Investments
ShortTermInvestments
186452000
CY2020Q4 us-gaap Restricted Cash Current
RestrictedCashCurrent
210000
CY2020Q4 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
9557000
CY2019Q4 us-gaap Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
8247000
CY2020Q4 us-gaap Assets Current
AssetsCurrent
333249000
CY2019Q4 us-gaap Assets Current
AssetsCurrent
241627000
CY2020Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
4051000
CY2019Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
6398000
CY2020Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
6566000
CY2019Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
1927000
CY2019Q4 us-gaap Restricted Cash Noncurrent
RestrictedCashNoncurrent
210000
CY2020Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
5588000
CY2020Q4 us-gaap Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
10000
CY2019Q4 us-gaap Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
4372000
CY2020Q4 us-gaap Assets
Assets
349464000
CY2019Q4 us-gaap Assets
Assets
254534000
CY2020Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
503000
CY2019Q4 us-gaap Accounts Payable Current
AccountsPayableCurrent
5693000
CY2020Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
29199000
CY2019Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
20415000
CY2020Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
2107000
CY2019Q4 us-gaap Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
1697000
CY2020Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
37000
CY2019Q4 us-gaap Other Liabilities Current
OtherLiabilitiesCurrent
25000
CY2020Q4 us-gaap Liabilities Current
LiabilitiesCurrent
31846000
CY2019Q4 us-gaap Liabilities Current
LiabilitiesCurrent
27830000
CY2020Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
4878000
CY2019Q4 us-gaap Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
955000
CY2020Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
805000
CY2019Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
326000
CY2020Q4 us-gaap Liabilities
Liabilities
37529000
CY2019Q4 us-gaap Liabilities
Liabilities
29111000
CY2020Q4 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
829424000
CY2019Q4 us-gaap Additional Paid In Capital
AdditionalPaidInCapital
581467000
CY2020Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
-34000
CY2019Q4 us-gaap Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
33000
CY2020Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-517473000
CY2019Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-356092000
CY2020Q4 us-gaap Stockholders Equity
StockholdersEquity
311935000
CY2019Q4 us-gaap Stockholders Equity
StockholdersEquity
225423000
CY2020Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
349464000
CY2019Q4 us-gaap Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
254534000
CY2020 us-gaap Research And Development Expense
ResearchAndDevelopmentExpense
112042000
CY2019 us-gaap Research And Development Expense
ResearchAndDevelopmentExpense
135001000
CY2018 us-gaap Research And Development Expense
ResearchAndDevelopmentExpense
86597000
CY2020 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
45321000
CY2019 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
34962000
CY2018 us-gaap General And Administrative Expense
GeneralAndAdministrativeExpense
21563000
CY2020 us-gaap Operating Expenses
OperatingExpenses
157363000
CY2019 us-gaap Operating Expenses
OperatingExpenses
169963000
CY2018 us-gaap Operating Expenses
OperatingExpenses
108160000
CY2020 us-gaap Operating Income Loss
OperatingIncomeLoss
-157363000
CY2019 us-gaap Operating Income Loss
OperatingIncomeLoss
-169963000
CY2018 us-gaap Operating Income Loss
OperatingIncomeLoss
-108160000
CY2020 us-gaap Investment Income Interest
InvestmentIncomeInterest
1134000
CY2019 us-gaap Investment Income Interest
InvestmentIncomeInterest
6049000
CY2018 us-gaap Investment Income Interest
InvestmentIncomeInterest
4719000
CY2020 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
-156229000
CY2019 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
-163914000
CY2018 us-gaap Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
-103441000
CY2020 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
5152000
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-2047000
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-214000
CY2018 us-gaap Share Based Compensation
ShareBasedCompensation
5701000
CY2020 us-gaap Net Income Loss
NetIncomeLoss
-161381000
CY2019 us-gaap Net Income Loss
NetIncomeLoss
-161867000
CY2018 us-gaap Net Income Loss
NetIncomeLoss
-103227000
CY2020 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
-2.61
CY2019 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
-2.99
CY2018 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
-3.49
CY2020 us-gaap Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
61842722
CY2019 us-gaap Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
54049477
CY2018 us-gaap Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
29547427
CY2020 us-gaap Net Income Loss
NetIncomeLoss
-161381000
CY2019 us-gaap Net Income Loss
NetIncomeLoss
-161867000
CY2018 us-gaap Net Income Loss
NetIncomeLoss
-103227000
CY2020 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
-67000
CY2019 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
37000
CY2018 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
-4000
CY2020 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-67000
CY2019 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
37000
CY2018 us-gaap Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent
OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
-4000
CY2020 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
-161448000
CY2019 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
-161830000
CY2018 us-gaap Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
-103231000
CY2017Q4 us-gaap Stockholders Equity
StockholdersEquity
-89708000
CY2018 us-gaap Stock Issued During Period Value Conversion Of Convertible Securities
StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
310592000
CY2018 us-gaap Adjustments To Additional Paid In Capital Share Based Compensation Employee Stock Purchase Program Requisite Service Period Recognition
AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition
377000
CY2018 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
5701000
CY2018 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
-4000
CY2018 us-gaap Net Income Loss
NetIncomeLoss
-103227000
CY2018Q4 us-gaap Stockholders Equity
StockholdersEquity
279267000
CY2019 us-gaap Stock Issued During Period Value Acquisitions
StockIssuedDuringPeriodValueAcquisitions
7000000
CY2019 knsa Stock Issued During Period Value Milestone Payments
StockIssuedDuringPeriodValueMilestonePayments
1800000
CY2019 us-gaap Adjustments To Additional Paid In Capital Share Based Compensation Employee Stock Purchase Program Requisite Service Period Recognition
AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition
1119000
CY2019 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
15080000
CY2019 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
37000
CY2019 us-gaap Net Income Loss
NetIncomeLoss
-161867000
CY2019Q4 us-gaap Stockholders Equity
StockholdersEquity
225423000
CY2020 us-gaap Adjustments To Additional Paid In Capital Share Based Compensation Employee Stock Purchase Program Requisite Service Period Recognition
AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition
6552000
CY2020 us-gaap Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
20875000
CY2020 us-gaap Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax
OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
-67000
CY2020 us-gaap Net Income Loss
NetIncomeLoss
-161381000
CY2020Q4 us-gaap Stockholders Equity
StockholdersEquity
311935000
CY2020 us-gaap Profit Loss
ProfitLoss
-161381000
CY2019 us-gaap Profit Loss
ProfitLoss
-161867000
CY2018 us-gaap Profit Loss
ProfitLoss
-103227000
CY2020 us-gaap Depreciation
Depreciation
2405000
CY2019 us-gaap Depreciation
Depreciation
2068000
CY2018 us-gaap Depreciation
Depreciation
286000
CY2020 us-gaap Share Based Compensation
ShareBasedCompensation
20875000
CY2019 us-gaap Share Based Compensation
ShareBasedCompensation
15080000
CY2019 knsa Issuance Of Stock For Acquisition
IssuanceOfStockForAcquisition
8800000
CY2019 us-gaap Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
-21000
CY2018 us-gaap Gain Loss On Sale Of Property Plant Equipment
GainLossOnSaleOfPropertyPlantEquipment
-66000
CY2018 us-gaap Increase Decrease In Accrued Liabilities
IncreaseDecreaseInAccruedLiabilities
9296000
CY2019 knsa Increase Decrease In Accrued Milestone
IncreaseDecreaseInAccruedMilestone
-15000000
CY2018 knsa Increase Decrease In Accrued Milestone
IncreaseDecreaseInAccruedMilestone
5000000
CY2020 knsa Increase Decrease In Operating Lease Liabilities
IncreaseDecreaseInOperatingLeaseLiabilities
-1699000
CY2019 knsa Increase Decrease In Operating Lease Liabilities
IncreaseDecreaseInOperatingLeaseLiabilities
-1264000
CY2020 us-gaap Increase Decrease In Other Noncurrent Liabilities
IncreaseDecreaseInOtherNoncurrentLiabilities
478000
CY2018 us-gaap Other Noncash Expense
OtherNoncashExpense
235000
CY2020 knsa Noncash Lease Expense
NoncashLeaseExpense
1400000
CY2019 knsa Noncash Lease Expense
NoncashLeaseExpense
1211000
CY2020 us-gaap Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
-123000
CY2019 us-gaap Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
3501000
CY2018 us-gaap Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
1423000
CY2020 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
4361000
CY2019 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
-3156000
CY2018 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
-978000
CY2020 us-gaap Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
1334000
CY2019 us-gaap Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
1020000
CY2018 us-gaap Increase Decrease In Prepaid Deferred Expense And Other Assets
IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
4791000
CY2020 us-gaap Increase Decrease In Other Noncurrent Assets
IncreaseDecreaseInOtherNoncurrentAssets
5588000
CY2020 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-4969000
CY2019 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
-4705000
CY2018 us-gaap Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
8823000
CY2020 us-gaap Increase Decrease In Accrued Liabilities
IncreaseDecreaseInAccruedLiabilities
8797000
CY2019 us-gaap Increase Decrease In Accrued Liabilities
IncreaseDecreaseInAccruedLiabilities
4638000
CY2019 us-gaap Increase Decrease In Other Noncurrent Liabilities
IncreaseDecreaseInOtherNoncurrentLiabilities
326000
CY2020 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
-136532000
CY2019 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
-158369000
CY2018 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
-81012000
CY2020 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
283000
CY2019 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
3203000
CY2018 us-gaap Payments To Acquire Property Plant And Equipment
PaymentsToAcquirePropertyPlantAndEquipment
5290000
CY2020 us-gaap Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
430211000
CY2019 us-gaap Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
488773000
CY2018 us-gaap Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
402008000
CY2020 us-gaap Proceeds From Maturities Prepayments And Calls Of Shortterm Investments
ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments
407050000
CY2019 us-gaap Proceeds From Maturities Prepayments And Calls Of Shortterm Investments
ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments
541190000
CY2018 us-gaap Proceeds From Maturities Prepayments And Calls Of Shortterm Investments
ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments
168100000
CY2020 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-23444000
CY2019 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
49214000
CY2018 us-gaap Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
-239198000
CY2020 us-gaap Payments Of Stock Issuance Costs
PaymentsOfStockIssuanceCosts
1136000
CY2019 us-gaap Payments Of Stock Issuance Costs
PaymentsOfStockIssuanceCosts
118000
CY2018 us-gaap Payments Of Stock Issuance Costs
PaymentsOfStockIssuanceCosts
3657000
CY2020 us-gaap Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
6553000
CY2019 us-gaap Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
1119000
CY2018 us-gaap Proceeds From Stock Options Exercised
ProceedsFromStockOptionsExercised
377000
CY2020 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
227086000
CY2019 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
84107000
CY2018 us-gaap Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
346736000
CY2020 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
67110000
CY2019 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
-25048000
CY2018 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect
26526000
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
47138000
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
72186000
CY2017Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
45660000
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
114248000
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
47138000
CY2018Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
72186000
CY2020 us-gaap Income Taxes Paid
IncomeTaxesPaid
482000
CY2019 us-gaap Income Taxes Paid
IncomeTaxesPaid
1724000
CY2018 us-gaap Income Taxes Paid
IncomeTaxesPaid
383000
CY2020 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
6039000
CY2018 knsa Deferred Offering Costs Included In Accrued Expenses And Accounts Payable
DeferredOfferingCostsIncludedInAccruedExpensesAndAccountsPayable
404000
CY2019 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
222000
CY2018 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
1292000
CY2020 us-gaap Use Of Estimates
UseOfEstimates
<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:italic;font-weight:bold;margin:0pt 0pt 12pt 36pt;">Use of Estimates</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt;">The preparation of the Company’s consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of </p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt 0pt 12pt 0pt;">expenses during the reporting period. Significant estimates and assumptions reflected in these consolidated financial statements include, but are not limited to, the accrual for research and development expenses and the valuation of share-based awards. Estimates are periodically reviewed in light of changes in circumstances, facts and experience. Changes in estimates are recorded in the period in which they become known. Actual results could differ from those estimates.</p>
CY2018Q2 us-gaap Stockholders Equity Note Stock Split Conversion Ratio1
StockholdersEquityNoteStockSplitConversionRatio1
2.73235
CY2020Q4 us-gaap Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
-517473000
CY2020 us-gaap Net Income Loss
NetIncomeLoss
-161381000
CY2020 us-gaap Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
-136532000
CY2020Q4 us-gaap Cash Cash Equivalents And Short Term Investments
CashCashEquivalentsAndShortTermInvestments
323482000
CY2020 us-gaap Concentration Risk Credit Risk
ConcentrationRiskCreditRisk
<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:italic;font-weight:bold;margin:0pt 0pt 12pt 36pt;">Concentrations of Credit Risk</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash, cash equivalents and short-term investments. At December 31, 2020 and 2019, substantially all of the Company’s cash, cash equivalents and short-term investments were held at two financial institutions. The Company generally maintains balances in various operating accounts at financial institutions that management believes to be of high credit quality, in amounts that may exceed federally insured limits. The Company has not experienced any losses related to its cash, cash equivalents and short-term investments and does not believe that it is subject to unusual credit risk beyond the normal credit risk associated with commercial banking relationships.</p>
CY2020 knsa Concentration Risk Number Of Financial Institutions
ConcentrationRiskNumberOfFinancialInstitutions
2
CY2019Q4 us-gaap Cash Collateral For Borrowed Securities
CashCollateralForBorrowedSecurities
210000
CY2020Q4 us-gaap Cash Collateral For Borrowed Securities
CashCollateralForBorrowedSecurities
210000
CY2019Q4 knsa Inventory Capitalized Costs
InventoryCapitalizedCosts
0
CY2020Q4 knsa Inventory Capitalized Costs
InventoryCapitalizedCosts
0
CY2019Q4 us-gaap Deferred Costs
DeferredCosts
0
CY2020Q4 us-gaap Deferred Costs
DeferredCosts
0
CY2019Q4 us-gaap Operating Loss Carryforwards
OperatingLossCarryforwards
0
CY2018 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0
CY2019 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0
CY2020 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0
CY2018 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
0
CY2019 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
0
CY2020 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
0
CY2018Q4 us-gaap Operating Loss Carryforwards
OperatingLossCarryforwards
0
CY2020Q4 us-gaap Operating Loss Carryforwards
OperatingLossCarryforwards
0
CY2019Q4 us-gaap Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
0
CY2020Q4 us-gaap Fair Value Assets Level2 To Level1 Transfers Amount
FairValueAssetsLevel2ToLevel1TransfersAmount
0
CY2019 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
0
CY2020 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3
0
CY2019 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
0
CY2020 us-gaap Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3
FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3
0
CY2019Q4 us-gaap Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
0
CY2020Q4 us-gaap Fair Value Assets Level1 To Level2 Transfers Amount
FairValueAssetsLevel1ToLevel2TransfersAmount
0
CY2020 knsa Number Of Securities Unrealized Loss Position
NumberOfSecuritiesUnrealizedLossPosition
17
CY2020Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
107753000
CY2019 knsa Number Of Securities Unrealized Loss Position
NumberOfSecuritiesUnrealizedLossPosition
7
CY2019Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
43107000
CY2019Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
8723000
CY2020Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
4730000
CY2019Q4 us-gaap Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
2325000
CY2020Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
4051000
CY2020Q4 us-gaap Property Plant And Equipment Gross
PropertyPlantAndEquipmentGross
8781000
CY2019Q4 us-gaap Property Plant And Equipment Net
PropertyPlantAndEquipmentNet
6398000
CY2020 us-gaap Depreciation
Depreciation
2405000
CY2019 us-gaap Depreciation
Depreciation
2068000
CY2018 us-gaap Depreciation
Depreciation
286000
CY2020 us-gaap Operating Lease Cost
OperatingLeaseCost
1578000
CY2019 us-gaap Operating Lease Cost
OperatingLeaseCost
1443000
CY2020 us-gaap Variable Lease Cost
VariableLeaseCost
167000
CY2019 us-gaap Variable Lease Cost
VariableLeaseCost
152000
CY2020 us-gaap Lease Cost
LeaseCost
1745000
CY2019 us-gaap Lease Cost
LeaseCost
1595000
CY2020Q4 us-gaap Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
P2Y7M20D
CY2020Q4 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.0560
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
2419000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
3055000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
2065000
CY2020Q4 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
7539000
CY2020Q4 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
554000
CY2020Q4 us-gaap Operating Lease Liability
OperatingLeaseLiability
6985000
CY2020Q4 knsa Accrued Research And Development Expenses Current
AccruedResearchAndDevelopmentExpensesCurrent
16945000
CY2019Q4 knsa Accrued Research And Development Expenses Current
AccruedResearchAndDevelopmentExpensesCurrent
11813000
CY2020Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
7704000
CY2019Q4 us-gaap Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
7089000
CY2020Q4 us-gaap Accrued Professional Fees Current
AccruedProfessionalFeesCurrent
3988000
CY2019Q4 us-gaap Accrued Professional Fees Current
AccruedProfessionalFeesCurrent
1087000
CY2020Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
562000
CY2019Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
426000
CY2020Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
29199000
CY2019Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
20415000
CY2018 us-gaap Dividends Preferred Stock Cash
DividendsPreferredStockCash
0
CY2017Q4 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
43918239
CY2017Q4 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.000273235
CY2018Q1 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
44746463
CY2017Q4 knsa Undesignated Shares Authorized
UndesignatedSharesAuthorized
11956456
CY2018Q2 us-gaap Common Stock Capital Shares Reserved For Future Issuance
CommonStockCapitalSharesReservedForFutureIssuance
54647000
CY2018Q2 us-gaap Common Stock Shares Authorized
CommonStockSharesAuthorized
200000000
CY2018Q2 us-gaap Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
0.000273235
CY2020 us-gaap Dividends Common Stock Cash
DividendsCommonStockCash
0
CY2020 knsa Period Of Equal Monthly Vesting After First Anniversary Option With Six Year Vesting
PeriodOfEqualMonthlyVestingAfterFirstAnniversaryOptionWithSixYearVesting
P5Y
CY2019Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
8491734
CY2019Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
11.17
CY2019 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
P7Y10M17D
CY2019Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
27217000
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
3794735
CY2020 us-gaap Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
16.50
CY2020 us-gaap Stock Issued During Period Shares Stock Options Exercised
StockIssuedDuringPeriodSharesStockOptionsExercised
1324429
CY2020Q4 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue
15.19
CY2020 knsa Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Remaining Contractual Term
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageRemainingContractualTerm
P2Y9M14D
CY2020Q4 knsa Share Based Compensation Arrangement By Share Based Payment Award Unvested Options Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardUnvestedOptionsIntrinsicValue
64715000
CY2019Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
328296
CY2020 us-gaap Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
4.57
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
1003182
CY2020 us-gaap Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
14.88
CY2020Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
9958858
CY2020Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
13.53
CY2020 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
P8Y1M24D
CY2020Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
52394000
CY2020Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
3799854
CY2020Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
10.83
CY2020 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
P7Y
CY2020Q4 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
31526000
CY2020Q4 us-gaap Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares
6159004
CY2019Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
12.93
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
17995
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
19.15
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
80701
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
12.95
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
60278
CY2020 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
13.09
CY2020Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
205312
CY2020Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
13.41
CY2020 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
20875000
CY2019 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
15080000
CY2018 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
5701000
CY2020 us-gaap Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
P2Y9M14D
CY2018 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0
CY2019 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0
CY2020 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0
CY2018 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
0
CY2019 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
0
CY2020 us-gaap Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
0
CY2018Q4 us-gaap Operating Loss Carryforwards
OperatingLossCarryforwards
0
CY2019Q4 us-gaap Operating Loss Carryforwards
OperatingLossCarryforwards
0
CY2020Q4 us-gaap Operating Loss Carryforwards
OperatingLossCarryforwards
0
CY2019 us-gaap Income Loss From Continuing Operations Before Income Taxes Domestic
IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
-168053000
CY2020 us-gaap Income Loss From Continuing Operations Before Income Taxes Domestic
IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
-161983000
CY2018 us-gaap Income Loss From Continuing Operations Before Income Taxes Domestic
IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
-105562000
CY2020 us-gaap Income Loss From Continuing Operations Before Income Taxes Foreign
IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
5754000
CY2019 us-gaap Income Loss From Continuing Operations Before Income Taxes Foreign
IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
4139000
CY2018 us-gaap Income Loss From Continuing Operations Before Income Taxes Foreign
IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
2121000
CY2020 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
-156229000
CY2019 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
-163914000
CY2018 us-gaap Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments
IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
-103441000
CY2020 knsa Current Foreign Federal Tax Expense Benefit
CurrentForeignFederalTaxExpenseBenefit
392000
CY2019 knsa Current Foreign Federal Tax Expense Benefit
CurrentForeignFederalTaxExpenseBenefit
567000
CY2018 knsa Current Foreign Federal Tax Expense Benefit
CurrentForeignFederalTaxExpenseBenefit
547000
CY2020 knsa Current Foreign State And Local Tax Expense Benefit
CurrentForeignStateAndLocalTaxExpenseBenefit
366000
CY2019 knsa Current Foreign State And Local Tax Expense Benefit
CurrentForeignStateAndLocalTaxExpenseBenefit
530000
CY2018 knsa Current Foreign State And Local Tax Expense Benefit
CurrentForeignStateAndLocalTaxExpenseBenefit
217000
CY2020 us-gaap Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
33000
CY2019 us-gaap Current Foreign Tax Expense Benefit
CurrentForeignTaxExpenseBenefit
12000
CY2020 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
791000
CY2019 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
1109000
CY2018 us-gaap Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
764000
CY2020 knsa Deferred Foreign Federal Income Tax Expense Benefit
DeferredForeignFederalIncomeTaxExpenseBenefit
3056000
CY2019 knsa Deferred Foreign Federal Income Tax Expense Benefit
DeferredForeignFederalIncomeTaxExpenseBenefit
-2397000
CY2018 knsa Deferred Foreign Federal Income Tax Expense Benefit
DeferredForeignFederalIncomeTaxExpenseBenefit
-542000
CY2020 knsa Deferred Foreign State And Local Income Tax Expense Benefit
DeferredForeignStateAndLocalIncomeTaxExpenseBenefit
1315000
CY2019 knsa Deferred Foreign State And Local Income Tax Expense Benefit
DeferredForeignStateAndLocalIncomeTaxExpenseBenefit
-759000
CY2018 knsa Deferred Foreign State And Local Income Tax Expense Benefit
DeferredForeignStateAndLocalIncomeTaxExpenseBenefit
-436000
CY2020 us-gaap Deferred Foreign Income Tax Expense Benefit
DeferredForeignIncomeTaxExpenseBenefit
-10000
CY2020 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
4361000
CY2019 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
-3156000
CY2018 us-gaap Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
-978000
CY2020 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
5152000
CY2019 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-2047000
CY2018 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-214000
CY2018 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0
CY2019 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0
CY2020 us-gaap Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate
EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
0
CY2020 us-gaap Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential
EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
-0.008
CY2019 us-gaap Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential
EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
-0.005
CY2018 us-gaap Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential
EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
-0.010
CY2020 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
-0.024
CY2019 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
-0.022
CY2018 us-gaap Effective Income Tax Rate Reconciliation Tax Credits Research
EffectiveIncomeTaxRateReconciliationTaxCreditsResearch
-0.015
CY2020 us-gaap Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent
EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent
0.013
CY2019 us-gaap Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent
EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent
-0.005
CY2018 us-gaap Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent
EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent
0.001
CY2020 knsa Effective Income Tax Rate Reconciliation Permanent Differences Percent
EffectiveIncomeTaxRateReconciliationPermanentDifferencesPercent
-0.001
CY2019 knsa Effective Income Tax Rate Reconciliation Permanent Differences Percent
EffectiveIncomeTaxRateReconciliationPermanentDifferencesPercent
-0.001
CY2020 us-gaap Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
-0.057
CY2019 us-gaap Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance
EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
-0.001
CY2020 us-gaap Effective Income Tax Rate Reconciliation Tax Contingencies State And Local
EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal
0.001
CY2019 us-gaap Effective Income Tax Rate Reconciliation Tax Contingencies State And Local
EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal
-0.003
CY2018 us-gaap Effective Income Tax Rate Reconciliation Tax Contingencies State And Local
EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal
-0.004
CY2020 us-gaap Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
0.006
CY2019 us-gaap Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate
EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate
0.009
CY2020 knsa Effective Income Tax Rate Reconciliation Uncertain Tax Positions Percent
EffectiveIncomeTaxRateReconciliationUncertainTaxPositionsPercent
-0.002
CY2019 knsa Effective Income Tax Rate Reconciliation Uncertain Tax Positions Percent
EffectiveIncomeTaxRateReconciliationUncertainTaxPositionsPercent
-0.003
CY2020 us-gaap Effective Income Tax Rate Reconciliation Other Adjustments
EffectiveIncomeTaxRateReconciliationOtherAdjustments
-0.009
CY2020 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
-0.033
CY2019 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.013
CY2018 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.002
CY2020Q4 us-gaap Deferred Tax Assets Tax Credit Carryforwards Research
DeferredTaxAssetsTaxCreditCarryforwardsResearch
1674000
CY2019Q4 us-gaap Deferred Tax Assets Tax Credit Carryforwards Research
DeferredTaxAssetsTaxCreditCarryforwardsResearch
238000
CY2020Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
6271000
CY2019Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
3746000
CY2020Q4 knsa Deferred Tax Assets Operating Lease Liabilities
DeferredTaxAssetsOperatingLeaseLiabilities
1764000
CY2019Q4 knsa Deferred Tax Assets Operating Lease Liabilities
DeferredTaxAssetsOperatingLeaseLiabilities
712000
CY2020Q4 knsa Deferred Tax Assets Accrued Bonus
DeferredTaxAssetsAccruedBonus
1208000
CY2019Q4 knsa Deferred Tax Assets Accrued Bonus
DeferredTaxAssetsAccruedBonus
855000
CY2020Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
634000
CY2019Q4 us-gaap Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities
DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
223000
CY2020Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
198000
CY2019Q4 us-gaap Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
190000
CY2020Q4 us-gaap Deferred Tax Assets Gross
DeferredTaxAssetsGross
11749000
CY2019Q4 us-gaap Deferred Tax Assets Gross
DeferredTaxAssetsGross
5964000
CY2020Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
9307000
CY2019Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
330000
CY2020Q4 knsa Deferred Tax Liabilities Depreciation And Amortization
DeferredTaxLiabilitiesDepreciationAndAmortization
786000
CY2019Q4 knsa Deferred Tax Liabilities Depreciation And Amortization
DeferredTaxLiabilitiesDepreciationAndAmortization
745000
CY2020Q4 knsa Deferred Tax Liabilities Right Of Use Asset
DeferredTaxLiabilitiesRightOfUseAsset
1646000
CY2019Q4 knsa Deferred Tax Liabilities Right Of Use Asset
DeferredTaxLiabilitiesRightOfUseAsset
517000
CY2020Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
9307000
CY2019Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
330000
CY2020Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
10000
CY2019Q4 us-gaap Deferred Tax Assets Net
DeferredTaxAssetsNet
4372000
CY2020Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
9307000
CY2019Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
330000
CY2018Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
49000
CY2020 knsa Valuation Allowance Deferred Tax Asset Change In Amount Income Tax Provision
ValuationAllowanceDeferredTaxAssetChangeInAmountIncomeTaxProvision
8977000
CY2020Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
837000
CY2019Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
528000
CY2019Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
330000
CY2018Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
49000
CY2017Q4 us-gaap Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
27000
CY2019 knsa Valuation Allowance Deferred Tax Asset Change In Amount Balance Sheet
ValuationAllowanceDeferredTaxAssetChangeInAmountBalanceSheet
200000
CY2020 knsa Valuation Allowance Deferred Tax Asset Change In Amount Income Tax Provision
ValuationAllowanceDeferredTaxAssetChangeInAmountIncomeTaxProvision
8977000
CY2019 knsa Valuation Allowance Deferred Tax Asset Change In Amount Income Tax Provision
ValuationAllowanceDeferredTaxAssetChangeInAmountIncomeTaxProvision
81000
CY2018 knsa Valuation Allowance Deferred Tax Asset Change In Amount Income Tax Provision
ValuationAllowanceDeferredTaxAssetChangeInAmountIncomeTaxProvision
22000
CY2019Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
528000
CY2020 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
411000
CY2019 us-gaap Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions
UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
528000
CY2020 us-gaap Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions
UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
102000
CY2020Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
837000
CY2019Q4 us-gaap Unrecognized Tax Benefits
UnrecognizedTaxBenefits
528000
CY2020 knsa Number Of Income Tax Examinations Pending
NumberOfIncomeTaxExaminationsPending
0
CY2020 us-gaap Net Income Loss
NetIncomeLoss
-161381000
CY2019 us-gaap Net Income Loss
NetIncomeLoss
-161867000
CY2018 us-gaap Net Income Loss
NetIncomeLoss
-103227000
CY2020 us-gaap Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
61842722
CY2019 us-gaap Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
54049477
CY2018 us-gaap Weighted Average Number Of Share Outstanding Basic And Diluted
WeightedAverageNumberOfShareOutstandingBasicAndDiluted
29547427
CY2020 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
-2.61
CY2019 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
-2.99
CY2018 us-gaap Earnings Per Share Basic And Diluted
EarningsPerShareBasicAndDiluted
-3.49
CY2020 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
10164170
CY2019 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
8820030
CY2018 us-gaap Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount
AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
6838158
CY2020Q4 us-gaap Purchase Commitment Remaining Minimum Amount Committed
PurchaseCommitmentRemainingMinimumAmountCommitted
16178000
CY2020 knsa Defined Contribution Plan Employer Matching Contribution Percent Of Match First Three Percent
DefinedContributionPlanEmployerMatchingContributionPercentOfMatchFirstThreePercent
1
CY2020 knsa Defined Contribution Plan Employer Matching One Hundred Percent Contribution Percent Of Employees Gross Pay
DefinedContributionPlanEmployerMatchingOneHundredPercentContributionPercentOfEmployeesGrossPay
0.03
CY2020 knsa Defined Contribution Plan Employer Matching Contribution Percent Of Match Next Two Percent
DefinedContributionPlanEmployerMatchingContributionPercentOfMatchNextTwoPercent
0.50
CY2020 knsa Defined Contribution Plan Employer Matching Fifty Percent Contribution Percent Of Employees Gross Pay
DefinedContributionPlanEmployerMatchingFiftyPercentContributionPercentOfEmployeesGrossPay
0.02
CY2020 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
993000
CY2019 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
851000
CY2018 us-gaap Defined Contribution Plan Cost Recognized
DefinedContributionPlanCostRecognized
315000

Files In Submission

Name View Source Status
0001558370-21-001821-index-headers.html Edgar Link pending
0001558370-21-001821-index.html Edgar Link pending
0001558370-21-001821.txt Edgar Link pending
0001558370-21-001821-xbrl.zip Edgar Link pending
FilingSummary.xml Edgar Link unprocessable
Financial_Report.xlsx Edgar Link pending
knsa-20201231.xsd Edgar Link pending
knsa-20201231x10k.htm Edgar Link pending
knsa-20201231x10k006.jpg Edgar Link pending
knsa-20201231x10k008.jpg Edgar Link pending
knsa-20201231x10k009.jpg Edgar Link pending
knsa-20201231x10k_htm.xml Edgar Link completed
knsa-20201231xex10d22.htm Edgar Link pending
knsa-20201231xex10d23.htm Edgar Link pending
knsa-20201231xex10d33.htm Edgar Link pending
knsa-20201231xex10d34.htm Edgar Link pending
knsa-20201231xex10d34003.jpg Edgar Link pending
knsa-20201231xex10d34004.jpg Edgar Link pending
knsa-20201231xex10d34005.jpg Edgar Link pending
knsa-20201231xex10d34009.jpg Edgar Link pending
knsa-20201231xex10d34010.jpg Edgar Link pending
knsa-20201231xex21d1.htm Edgar Link pending
knsa-20201231xex23d1.htm Edgar Link pending
knsa-20201231xex31d1.htm Edgar Link pending
knsa-20201231xex31d2.htm Edgar Link pending
knsa-20201231xex32d1.htm Edgar Link pending
knsa-20201231xex32d2.htm Edgar Link pending
knsa-20201231_cal.xml Edgar Link unprocessable
knsa-20201231_def.xml Edgar Link unprocessable
knsa-20201231_lab.xml Edgar Link unprocessable
knsa-20201231_pre.xml Edgar Link unprocessable
MetaLinks.json Edgar Link pending
R1.htm Edgar Link pending
R10.htm Edgar Link pending
R11.htm Edgar Link pending
R12.htm Edgar Link pending
R13.htm Edgar Link pending
R14.htm Edgar Link pending
R15.htm Edgar Link pending
R16.htm Edgar Link pending
R17.htm Edgar Link pending
R18.htm Edgar Link pending
R19.htm Edgar Link pending
R2.htm Edgar Link pending
R20.htm Edgar Link pending
R21.htm Edgar Link pending
R22.htm Edgar Link pending
R23.htm Edgar Link pending
R24.htm Edgar Link pending
R25.htm Edgar Link pending
R26.htm Edgar Link pending
R27.htm Edgar Link pending
R28.htm Edgar Link pending
R29.htm Edgar Link pending
R3.htm Edgar Link pending
R30.htm Edgar Link pending
R31.htm Edgar Link pending
R32.htm Edgar Link pending
R33.htm Edgar Link pending
R34.htm Edgar Link pending
R35.htm Edgar Link pending
R36.htm Edgar Link pending
R37.htm Edgar Link pending
R38.htm Edgar Link pending
R39.htm Edgar Link pending
R4.htm Edgar Link pending
R40.htm Edgar Link pending
R41.htm Edgar Link pending
R42.htm Edgar Link pending
R43.htm Edgar Link pending
R44.htm Edgar Link pending
R45.htm Edgar Link pending
R46.htm Edgar Link pending
R47.htm Edgar Link pending
R48.htm Edgar Link pending
R49.htm Edgar Link pending
R5.htm Edgar Link pending
R50.htm Edgar Link pending
R51.htm Edgar Link pending
R52.htm Edgar Link pending
R53.htm Edgar Link pending
R54.htm Edgar Link pending
R55.htm Edgar Link pending
R56.htm Edgar Link pending
R57.htm Edgar Link pending
R58.htm Edgar Link pending
R59.htm Edgar Link pending
R6.htm Edgar Link pending
R60.htm Edgar Link pending
R61.htm Edgar Link pending
R62.htm Edgar Link pending
R63.htm Edgar Link pending
R64.htm Edgar Link pending
R7.htm Edgar Link pending
R8.htm Edgar Link pending
R9.htm Edgar Link pending
report.css Edgar Link pending
Show.js Edgar Link pending