$PRTA
PROTHENA CORP PUBLIC LTD CO Stock $prta

$prta Overview Financials Valuation SEC Filings Company Website

2019 Q3 Form 10-Q Financial Statement

#000155905319000023 Filed on August 06, 2019

Income Statement

Concept	2019 Q3	2019 Q2	2018 Q2
Revenue	$205.0K	$167.0K	$279.0K
YoY Change	-19.61%	-40.14%	-98.96%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin	$8.690M	$9.080M	$10.99M
YoY Change	-5.95%	-17.38%	0.73%
% of Gross Profit
Research & Development	$12.49M	$9.583M	$31.45M
YoY Change	-32.56%	-69.53%	-7.58%
% of Gross Profit
Depreciation & Amortization	$400.0K	$400.0K	$800.0K
YoY Change	-50.0%	-50.0%	0.0%
% of Gross Profit
Operating Expenses	$21.18M	$18.66M	$63.35M
YoY Change	-13.84%	-70.54%	40.95%
Operating Profit	-$20.97M	-$18.50M	-$63.07M
YoY Change	-13.78%	-70.67%	247.83%
Interest Expense	$2.030M	$2.300M	$830.0K
YoY Change	156.96%	177.11%	4050.0%
% of Operating Profit
Other Income/Expense, Net	$1.992M	$2.531M	$1.241M
YoY Change	174.38%	103.95%	-244.98%
Pretax Income	-$18.98M	-$15.97M	-$61.83M
YoY Change	-19.57%	-74.18%	225.62%
Income Tax	$468.0K	-$156.0K	-$1.946M
% Of Pretax Income
Net Earnings	-$19.45M	-$15.81M	-$59.88M
YoY Change	-20.81%	-73.6%	238.3%
Net Earnings / Revenue	-9486.83%	-9467.07%	-21463.08%
Basic Earnings Per Share	-$0.49	-$0.40	-$1.50
Diluted Earnings Per Share	-$0.49	-$0.40	-$1.50
COMMON SHARES
Basic Shares Outstanding	39.90M shares	39.86M shares	39.82M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2019 Q3	2019 Q2	2018 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$390.3M	$398.1M	$486.2M
YoY Change	-13.55%	-18.12%	3.07%
Cash & Equivalents	$390.3M	$398.1M	$486.2M
Short-Term Investments
Other Short-Term Assets	$3.148M	$3.462M	$7.800M
YoY Change	-41.7%	-55.62%	-20.41%
Inventory
Prepaid Expenses
Receivables			$8.000K
Other Receivables			$0.00
Total Short-Term Assets	$409.2M	$418.7M	$494.0M
YoY Change	-10.44%	-15.25%	-3.46%
LONG-TERM ASSETS
Property, Plant & Equipment	$4.245M	$4.318M	$53.40M
YoY Change	-91.98%	-91.91%	-4.38%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$677.0K	$923.0K	$502.0K
YoY Change	34.86%	83.86%	-69.11%
Total Long-Term Assets	$41.69M	$43.36M	$69.26M
YoY Change	-38.43%	-37.39%	2.95%
TOTAL ASSETS
Total Short-Term Assets	$409.2M	$418.7M	$494.0M
Total Long-Term Assets	$41.69M	$43.36M	$69.26M
Total Assets	$450.9M	$462.1M	$563.3M
YoY Change	-14.05%	-17.97%	-2.71%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.418M	$1.525M	$10.05M
YoY Change	-46.09%	-84.83%	-19.87%
Accrued Expenses	$12.90M	$10.00M	$14.10M
YoY Change	29.0%	-29.08%	-43.6%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$0.00	$0.00	$1.500M
YoY Change	-100.0%	-100.0%
Total Short-Term Liabilities	$31.76M	$28.02M	$46.13M
YoY Change	34.44%	-39.27%	16.5%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$50.70M
YoY Change	-100.0%	-100.0%
Other Long-Term Liabilities	$553.0K	$553.0K	$110.5M
YoY Change	0.0%	-99.5%	110.88%
Total Long-Term Liabilities	$130.0M	$131.2M	$161.2M
YoY Change	-19.46%	-18.56%	207.41%
TOTAL LIABILITIES
Total Short-Term Liabilities	$31.76M	$28.02M	$46.13M
Total Long-Term Liabilities	$130.0M	$131.2M	$161.2M
Total Liabilities	$161.7M	$159.3M	$207.3M
YoY Change	-12.57%	-23.17%	125.26%
SHAREHOLDERS EQUITY
Retained Earnings	-$650.3M	-$630.9M	-$551.0M
YoY Change	13.0%	14.5%	61.01%
Common Stock	$399.0K	$399.0K	$398.0K
YoY Change	0.25%	0.25%	4.19%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$289.2M	$302.8M	$356.0M
YoY Change
Total Liabilities & Shareholders Equity	$450.9M	$462.1M	$563.3M
YoY Change	-14.05%	-17.97%	-2.71%

Cashflow Statement

Concept	2019 Q3	2019 Q2	2018 Q2
OPERATING ACTIVITIES
Net Income	-$19.45M	-$15.81M	-$59.88M
YoY Change	-20.81%	-73.6%	238.3%
Depreciation, Depletion And Amortization	$400.0K	$400.0K	$800.0K
YoY Change	-50.0%	-50.0%	0.0%
Cash From Operating Activities	-$8.940M	-$12.10M	$58.13M
YoY Change	-73.37%	-120.82%	-261.11%
INVESTING ACTIVITIES
Capital Expenditures	-$250.0K	-$70.00K	-$100.0K
YoY Change	66.67%	-30.0%	-52.38%
Acquisitions
YoY Change
Other Investing Activities	$0.00	$0.00	$0.00
YoY Change			-100.0%
Cash From Investing Activities	-$250.0K	-$70.00K	-$100.0K
YoY Change	66.67%	-30.0%	-52.38%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	0.000	210.0K	-860.0K
YoY Change	-100.0%	-124.42%	-158.9%
NET CHANGE
Cash From Operating Activities	-8.940M	-12.10M	58.13M
Cash From Investing Activities	-250.0K	-70.00K	-100.0K
Cash From Financing Activities	0.000	210.0K	-860.0K
Net Change In Cash	-9.190M	-11.96M	57.17M
YoY Change	-73.51%	-120.92%	-264.14%
FREE CASH FLOW
Cash From Operating Activities	-$8.940M	-$12.10M	$58.13M
Capital Expenditures	-$250.0K	-$70.00K	-$100.0K
Free Cash Flow	-$8.690M	-$12.03M	$58.23M
YoY Change	-74.0%	-120.66%	-262.34%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	prta	Buildto Suit Leases Increase Decreaseto Obligation BuildtoSuitLeasesIncreaseDecreasetoObligation	1908000	USD
	prta	Buildto Suit Leases Increase Decreaseto Obligation BuildtoSuitLeasesIncreaseDecreasetoObligation	0	USD
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
	dei	Document Period End Date DocumentPeriodEndDate	2019-06-30
	dei	Document Type DocumentType	10-Q
	dei	Entity Central Index Key EntityCentralIndexKey	0001559053
CY2019Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	39896561	shares
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
	dei	Entity Registrant Name EntityRegistrantName	Prothena Corp plc
	dei	Entity Shell Company EntityShellCompany	false
	dei	Entity Small Business EntitySmallBusiness	true
CY2018Q4	prta	Accrued Research And Development Current AccruedResearchAndDevelopmentCurrent	5370000	USD
CY2019Q2	prta	Accrued Research And Development Current AccruedResearchAndDevelopmentCurrent	2260000	USD
	prta	Amortizationofrightofuseasset Amortizationofrightofuseasset	0	USD
	prta	Amortizationofrightofuseasset Amortizationofrightofuseasset	2603000	USD
CY2018Q4	prta	Buildto Suit Property Gross BuildtoSuitPropertyGross	52245000	USD
CY2018Q2	prta	Collaboration Revenue CollaborationRevenue	279000	USD
	prta	Collaboration Revenue CollaborationRevenue	506000	USD
CY2019Q2	prta	Buildto Suit Property Gross BuildtoSuitPropertyGross	0	USD
CY2018Q4	prta	Buildtosuit Lease Obligation Current BuildtosuitLeaseObligationCurrent	1645000	USD
CY2019Q2	prta	Buildtosuit Lease Obligation Current BuildtosuitLeaseObligationCurrent	0	USD
CY2019Q1	prta	Buildtosuit Lease Obligation Current BuildtosuitLeaseObligationCurrent	0	USD
CY2018Q4	prta	Buildtosuit Lease Obligation Currentand Noncurrent BuildtosuitLeaseObligationCurrentandNoncurrent	51500000	USD
CY2016Q1	prta	Buildtosuit Lease Termof Contract BuildtosuitLeaseTermofContract	P7Y9M30D
CY2018Q4	prta	Buildtosuitleaseobligationnoncurrent Buildtosuitleaseobligationnoncurrent	49901000	USD
CY2019Q2	prta	Buildtosuitleaseobligationnoncurrent Buildtosuitleaseobligationnoncurrent	0	USD
CY2019Q1	prta	Buildtosuitleaseobligationnoncurrent Buildtosuitleaseobligationnoncurrent	0	USD
CY2018Q4	prta	Builtto Suit Leases At Cost BuilttoSuitLeasesAtCost	52300000	USD
CY2019Q2	prta	Collaboration Revenue CollaborationRevenue	167000	USD
	prta	Collaboration Revenue CollaborationRevenue	353000	USD
CY2018Q4	prta	Deferred Shares Par Value DeferredSharesParValue	22
CY2019Q2	prta	Deferred Shares Par Value DeferredSharesParValue	22
CY2019Q2	prta	Deferred Shares Par Value DeferredSharesParValue	22
CY2018Q4	prta	Deferred Shares Share Issued DeferredSharesShareIssued	0	shares
CY2019Q2	prta	Deferred Shares Share Issued DeferredSharesShareIssued	0	shares
CY2018Q4	prta	Deferred Shares Share Outstanding DeferredSharesShareOutstanding	0	shares
CY2019Q2	prta	Deferred Shares Share Outstanding DeferredSharesShareOutstanding	0	shares
CY2019Q2	prta	Deferred Shares Share Outstanding DeferredSharesShareOutstanding	0.0	shares
CY2018Q4	prta	Deferred Shares Shares Authorized DeferredSharesSharesAuthorized	10000	shares
CY2019Q2	prta	Deferred Shares Shares Authorized DeferredSharesSharesAuthorized	10000	shares
CY2019Q2	prta	Deferred Shares Shares Authorized DeferredSharesSharesAuthorized	10000	shares
CY2018Q4	prta	Deferred Shares Value DeferredSharesValue	0	USD
CY2019Q2	prta	Deferred Shares Value DeferredSharesValue	0	USD
	prta	Increase Decreasein Operating Lease Liability IncreaseDecreaseinOperatingLeaseLiability	0	USD
	prta	Increase Decreasein Operating Lease Liability IncreaseDecreaseinOperatingLeaseLiability	2298000	USD
	prta	Interest Expenseunderbuildtosuittransaction InterestExpenseunderbuildtosuittransaction	1825000	USD
	prta	Interest Expenseunderbuildtosuittransaction InterestExpenseunderbuildtosuittransaction	0	USD
CY2019Q2	prta	Lessee Operating Lease Liability Nominal Payments LesseeOperatingLeaseLiabilityNominalPayments	-11000	USD
	prta	Numberof Votes NumberofVotes	1	vote
CY2016Q1	prta	Operating Lease Area OperatingLeaseArea	128751	sqft
CY2018Q4	prta	Operating Leases Future Minimum Subsublease Rentals Duein Five Years OperatingLeasesFutureMinimumSubsubleaseRentalsDueinFiveYears	3019000	USD
CY2018Q4	prta	Operating Leases Future Minimum Subsublease Rentals Duein Four Years OperatingLeasesFutureMinimumSubsubleaseRentalsDueinFourYears	3047000	USD
CY2018Q4	prta	Operating Leases Future Minimum Subsublease Rentals Duein Three Years OperatingLeasesFutureMinimumSubsubleaseRentalsDueinThreeYears	2944000	USD
CY2018Q4	prta	Operating Leases Future Minimum Subsublease Rentals Duein Two Years OperatingLeasesFutureMinimumSubsubleaseRentalsDueinTwoYears	2843000	USD
CY2018Q4	prta	Operating Leases Future Minimum Subsublease Rentals Next Twelve Months OperatingLeasesFutureMinimumSubsubleaseRentalsNextTwelveMonths	2746000	USD
CY2018Q3	prta	Operating Leases Sublease Rentals Areaof Sublease Rental OperatingLeasesSubleaseRentalsAreaofSubleaseRental	46641	sqft
CY2018Q3	prta	Operating Leases Sublease Rentals Percent Annual Rent Increase OperatingLeasesSubleaseRentalsPercentAnnualRentIncrease	0.035
CY2018Q3	prta	Operating Leases Sublease Rentals Percentof Rental Gain Attributableto Sublandlord OperatingLeasesSubleaseRentalsPercentofRentalGainAttributabletoSublandlord	0.50
CY2018Q3	prta	Operating Leases Sublease Rentals Termof Contract OperatingLeasesSubleaseRentalsTermofContract	P5Y2M12D
CY2019Q2	prta	Purchaseand Contractual Obligation Due After Fifth Year PurchaseandContractualObligationDueAfterFifthYear	535000	USD
CY2019Q2	prta	Purchaseand Contractual Obligation Duein Fifth Year PurchaseandContractualObligationDueinFifthYear	80000	USD
CY2019Q2	prta	Purchaseand Contractual Obligation Duein Fourth Year PurchaseandContractualObligationDueinFourthYear	80000	USD
CY2019Q2	prta	Purchaseand Contractual Obligation Duein Second Year PurchaseandContractualObligationDueinSecondYear	105000	USD
CY2019Q2	prta	Purchaseand Contractual Obligation Duein Third Year PurchaseandContractualObligationDueinThirdYear	95000	USD
CY2019Q2	prta	Purchaseand Contractual Obligation Remainderof Fiscal Year PurchaseandContractualObligationRemainderofFiscalYear	16875000	USD
CY2019Q2	prta	Purchaseand Contractual Obligation Total PurchaseandContractualObligationTotal	17770000	USD
	prta	Reductionof Amounts Capitalized Under Buildtosuit Lease Transaction ReductionofAmountsCapitalizedUnderBuildtosuitLeaseTransaction	0	USD
	prta	Reductionof Amounts Capitalized Under Buildtosuit Lease Transaction ReductionofAmountsCapitalizedUnderBuildtosuitLeaseTransaction	46760000	USD
	prta	Reductionof Buildtosuit Lease Obligation ReductionofBuildtosuitLeaseObligation	0	USD
	prta	Reductionof Buildtosuit Lease Obligation ReductionofBuildtosuitLeaseObligation	51546000	USD
	prta	Reductionof Capitalized Interest During Construction Periodfor Buildtosuit Lease Transaction ReductionofCapitalizedInterestDuringConstructionPeriodforBuildtosuitLeaseTransaction	0	USD
	prta	Reductionof Capitalized Interest During Construction Periodfor Buildtosuit Lease Transaction ReductionofCapitalizedInterestDuringConstructionPeriodforBuildtosuitLeaseTransaction	1099000	USD
CY2019Q2	prta	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Related To Vested Options ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValueRelatedToVestedOptions	2192000	USD
CY2019Q2	prta	Share Based Compensation Arrangement By Share Based Payment Award Options Vested Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedOutstandingNumber	3375931	shares
	prta	Share Based Compensation Arrangement By Share Based Payment Award Options Vested Outstanding Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedOutstandingWeightedAverageRemainingContractualTerm	P6Y7M2D
CY2019Q2	prta	Share Based Compensation Arrangement By Share Based Payment Award Options Vested Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedPeriodWeightedAverageExercisePrice	28.87
CY2018Q2	prta	Sharebased Compensation Net Tax Shortfall Excess Tax Benefit Amount Bookedto Income Tax Provision SharebasedCompensationNetTaxShortfallExcessTaxBenefitAmountBookedtoIncomeTaxProvision	0	USD
	prta	Sharebased Compensation Net Tax Shortfall Excess Tax Benefit Amount Bookedto Income Tax Provision SharebasedCompensationNetTaxShortfallExcessTaxBenefitAmountBookedtoIncomeTaxProvision	400000	USD
CY2019Q2	prta	Sharebased Compensation Net Tax Shortfall Excess Tax Benefit Amount Bookedto Income Tax Provision SharebasedCompensationNetTaxShortfallExcessTaxBenefitAmountBookedtoIncomeTaxProvision	300000	USD
	prta	Sharebased Compensation Net Tax Shortfall Excess Tax Benefit Amount Bookedto Income Tax Provision SharebasedCompensationNetTaxShortfallExcessTaxBenefitAmountBookedtoIncomeTaxProvision	1000000	USD
	prta	Sharebased Compensation Restructuring SharebasedCompensationRestructuring	2512000	USD
	prta	Sharebased Compensation Restructuring SharebasedCompensationRestructuring	0	USD
	prta	Sharebased Compensationnonrestructuring SharebasedCompensationnonrestructuring	13211000	USD
	prta	Sharebased Compensationnonrestructuring SharebasedCompensationnonrestructuring	12482000	USD
CY2018Q3	prta	Subleaserentals Annual Base Rent Initial Amount SubleaserentalsAnnualBaseRentInitialAmount	2700000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1470000	USD
CY2019Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	1525000	USD
CY2018Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	54000	USD
CY2019Q2	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	22000	USD
CY2018Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	1097000	USD
CY2019Q2	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	272000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	10504000	USD
CY2019Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	7244000	USD
CY2018Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	920594000	USD
CY2019Q2	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	933291000	USD
CY2018Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6309000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	13211000	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	6277000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	12482000	USD
CY2018Q4	us-gaap	Assets Assets	498796000	USD
CY2019Q2	us-gaap	Assets Assets	462072000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	431390000	USD
CY2019Q2	us-gaap	Assets Current AssetsCurrent	418708000	USD
CY2018Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	67406000	USD
CY2019Q2	us-gaap	Assets Noncurrent AssetsNoncurrent	43364000	USD
CY2016Q2	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	39200000	USD
CY2018Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	1303000	USD
CY2019Q2	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	1303000	USD
CY2018Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	486212000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	427659000	USD
CY2019Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	398144000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	421676000	USD
CY2018Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	490268000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	431715000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	402200000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	68592000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-29515000	USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2019Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2019Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	39863711	shares
CY2019Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	39896561	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	39863711	shares
CY2019Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	39896561	shares
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	399000	USD
CY2019Q2	us-gaap	Common Stock Value CommonStockValue	399000	USD
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-1198000	USD
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-784000	USD
CY2018Q4	us-gaap	Deferred Rent Credit DeferredRentCredit	44000	USD
CY2019Q2	us-gaap	Deferred Rent Credit DeferredRentCredit	0	USD
CY2018Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	176000	USD
CY2019Q2	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	0	USD
CY2019Q1	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	0	USD
CY2018Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	110242000	USD
CY2019Q2	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	110242000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	9702000	USD
CY2019Q2	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	9492000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	8708000	USD
CY2018Q2	us-gaap	Depreciation Depreciation	800000	USD
	us-gaap	Depreciation Depreciation	1600000	USD
CY2019Q2	us-gaap	Depreciation Depreciation	400000	USD
	us-gaap	Depreciation Depreciation	800000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1596000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	772000	USD
CY2018Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-1.50
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-2.77
CY2019Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.40
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.92
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	4507000	USD
CY2019Q2	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	2882000	USD
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y10M20D
CY2019Q2	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	51500000	USD
CY2018Q4	us-gaap	Estimated Insurance Recoveries EstimatedInsuranceRecoveries	0	USD
CY2019Q2	us-gaap	Estimated Insurance Recoveries EstimatedInsuranceRecoveries	15750000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-101000	USD
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	0	USD
CY2018Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10992000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	25221000	USD
CY2019Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	9081000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	18986000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-61828000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-110608000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-15966000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-36633000	USD
CY2018Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1946000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1983000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-156000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	42000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	576000	USD
	us-gaap	Income Taxes Paid IncomeTaxesPaid	755000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-12222000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	10414000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-232000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-2000	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	110242000	USD
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	0	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-2991000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	15593000	USD
	us-gaap	Increase Decrease In Restructuring Reserve IncreaseDecreaseInRestructuringReserve	15884000	USD
	us-gaap	Increase Decrease In Restructuring Reserve IncreaseDecreaseInRestructuringReserve	-461000	USD
CY2018Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	831000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1031000	USD
CY2019Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	2296000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	4600000	USD
CY2016Q1	us-gaap	Lease Expiration Date1 LeaseExpirationDate1	2023-12-31
CY2018Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	98000	USD
CY2019Q2	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	1017000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	27977000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	6535000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	6350000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	6165000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	5979000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	2948000	USD
CY2019Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	2608000	USD
CY2019Q2	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	13242000	USD
CY2019Q2	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	3019000	USD
CY2019Q2	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	3047000	USD
CY2019Q2	us-gaap	Lessor Operating Lease Payments To Be Received Remainder Of Fiscal Year LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear	1389000	USD
CY2019Q2	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	2944000	USD
CY2019Q2	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	2843000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	175798000	USD
CY2019Q2	us-gaap	Liabilities Liabilities	159265000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	498796000	USD
CY2019Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	462072000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	14926000	USD
CY2019Q2	us-gaap	Liabilities Current LiabilitiesCurrent	28016000	USD
CY2018Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	160872000	USD
CY2019Q2	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	131249000	USD
CY2018Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	0	USD
CY2019Q2	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	15750000	USD
CY2018Q4	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	9693000	USD
CY2019Q2	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	9242000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	42323000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	215000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-280000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-192000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	26549000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-29538000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	-59882000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-108625000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	-15810000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-36675000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Fixed Assets Acquired1 NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1	12000	USD
CY2018Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1241000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1169000	USD
CY2019Q2	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	2531000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	4818000	USD
CY2018Q2	us-gaap	Operating Expenses OperatingExpenses	63348000	USD
	us-gaap	Operating Expenses OperatingExpenses	112283000	USD
CY2019Q2	us-gaap	Operating Expenses OperatingExpenses	18664000	USD
	us-gaap	Operating Expenses OperatingExpenses	41804000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-63069000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-111777000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-18497000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-41451000	USD
CY2019Q2	us-gaap	Operating Lease Cost OperatingLeaseCost	1600000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	3200000	USD
CY2019Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	25358000	USD
CY2018Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	0	USD
CY2019Q2	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4904000	USD
CY2019Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4717000	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2019Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	25927000	USD
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	28530000	USD
CY2019Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	20454000	USD
CY2019Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	22939000	USD
CY2019Q2	us-gaap	Operating Lease Payments OperatingLeasePayments	1400000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	2900000	USD
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
CY2019Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y6M
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	23000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	23000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Future Minimum Sublease Rentals OperatingLeasesFutureMinimumPaymentsDueFutureMinimumSubleaseRentals	14599000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	0	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	0	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	0	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	0	USD
CY2018Q2	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	200000	USD
	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	400000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	3731000	USD
CY2019Q2	us-gaap	Other Assets Current OtherAssetsCurrent	3462000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	813000	USD
CY2019Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	923000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	5926000	USD
CY2019Q2	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	19305000	USD
CY2019Q1	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	5882000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	553000	USD
CY2019Q2	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	553000	USD
CY2018Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	410000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	138000	USD
CY2019Q2	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	235000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	218000	USD
CY2018Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	278000	USD
CY2019Q2	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	401000	USD
	us-gaap	Payments For Restructuring PaymentsForRestructuring	400000	USD
	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	280000	USD
	us-gaap	Payments To Acquire Machinery And Equipment PaymentsToAcquireMachineryAndEquipment	200000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	3731000	USD
CY2019Q2	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	19212000	USD
	us-gaap	Proceeds From Issuance Of Private Placement ProceedsFromIssuanceOfPrivatePlacement	39758000	USD
	us-gaap	Proceeds From Issuance Of Private Placement ProceedsFromIssuanceOfPrivatePlacement	0	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	8000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	4473000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	215000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	63339000	USD
CY2019Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	11562000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	52835000	USD
CY2019Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4318000	USD
CY2019Q2	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	9583000	USD
CY2019Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4976000	USD
CY2019Q2	us-gaap	Purchase Obligation PurchaseObligation	725000	USD
CY2019Q2	us-gaap	Purchase Obligation Due After Fifth Year PurchaseObligationDueAfterFifthYear	0	USD
CY2019Q2	us-gaap	Purchase Obligation Due In Fifth Year PurchaseObligationDueInFifthYear	0	USD
CY2019Q2	us-gaap	Purchase Obligation Due In Fourth Year PurchaseObligationDueInFourthYear	0	USD
CY2019Q2	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	0	USD
CY2019Q2	us-gaap	Purchase Obligation Due In Third Year PurchaseObligationDueInThirdYear	0	USD
CY2019Q2	us-gaap	Purchase Obligation Future Minimum Payments Remainder Of Fiscal Year PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear	725000	USD
CY2018Q2	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	31452000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	66158000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	22879000	USD
CY2018Q2	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2018Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2019Q2	us-gaap	Restricted Cash Current RestrictedCashCurrent	1352000	USD
CY2018Q2	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	4056000	USD
CY2018Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	4056000	USD
CY2019Q2	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	2704000	USD
CY2019Q2	us-gaap	Restructuring And Related Cost Cost Incurred To Date1 RestructuringAndRelatedCostCostIncurredToDate1	16100000	USD
	us-gaap	Restructuring Charges RestructuringCharges	-61000	USD
CY2018Q2	us-gaap	Restructuring Costs RestructuringCosts	20904000	USD
	us-gaap	Restructuring Costs RestructuringCosts	20904000	USD
CY2019Q2	us-gaap	Restructuring Costs RestructuringCosts	0	USD
	us-gaap	Restructuring Costs RestructuringCosts	-61000	USD
CY2018Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	461000	USD
CY2019Q2	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	0	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-597995000	USD
CY2019Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-630883000	USD
CY2019Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-594208000	USD
CY2018Q2	us-gaap	Revenues Revenues	279000	USD
	us-gaap	Revenues Revenues	506000	USD
CY2019Q2	us-gaap	Revenues Revenues	167000	USD
	us-gaap	Revenues Revenues	353000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	28530000	USD
CY2018Q2	us-gaap	Share Based Compensation ShareBasedCompensation	8821000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	15723000	USD
CY2019Q2	us-gaap	Share Based Compensation ShareBasedCompensation	6277000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	12482000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P4Y
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.000
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.000
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.000
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.000
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.839
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.794
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.815
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.815
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.028
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	2953200	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	4046300	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.028
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.022
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.025
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	523376	shares
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	7168464	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	26.82
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	24.41
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	145000	shares
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	997975	shares
CY2018Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	11.28
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	13.82
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.58
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	9.06
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2169000	USD
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2368000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6726715	shares
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	2352000	USD
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	6739513	shares
CY2019Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	24.78
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	6.56
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	34.43
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	12.85
CY2018Q2	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2019Q2	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P7Y7M13D
CY2018	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P7Y4M21D
	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P7Y10M16D
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	32850	shares
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	39758000	USD
CY2018Q2	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	74000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	4473000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	210000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	215000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	322998000	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	302807000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	407189000	USD
CY2018Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	409505000	USD
CY2018Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	356006000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	322998000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	312130000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	302807000	USD
CY2019Q2	us-gaap	Sublease Income SubleaseIncome	700000	USD
	us-gaap	Sublease Income SubleaseIncome	1500000	USD
CY2018Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	39824000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	39257000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	39872000	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	39868000	shares
	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-indent:12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Segment and Concentration of Risks</font></div><div style="line-height:120%;padding-top:12px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company operates in one segment. The Company’s chief operating decision maker (the “CODM”), its Chief Executive Officer, manages the Company’s operations on a consolidated basis for purposes of allocating resources. When evaluating the Company’s financial performance, the CODM reviews all financial information on a consolidated basis.</font></div><div style="line-height:120%;padding-top:12px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Financial instruments that potentially subject the Company to concentration of credit risk consist of cash and cash equivalents and accounts receivable. The Company places its cash equivalents with high credit quality financial institutions and by policy, limits the amount of credit exposure with any one financial institution. Deposits held with banks may exceed the amount of insurance provided on such deposits. The Company has not experienced any losses on its deposits of cash and cash equivalents and its credit risk exposure is up to the extent recorded on the Company's Consolidated Balance Sheet.</font></div><div style="line-height:120%;padding-top:12px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The receivable from Roche recorded in prepaid expenses and other current assets in the Condensed Consolidated Balance Sheet are amounts due from a Roche entity located in Switzerland under the License Agreement that became effective January 22, 2014. Revenue recorded in the Condensed Consolidated Statements of Operations consists of reimbursement from Roche for research and development services. The Company's credit risk exposure is up to the extent recorded on the Company's Condensed Consolidated Balance Sheet.</font></div><div style="line-height:120%;padding-top:12px;text-align:justify;text-indent:32px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> As of </font><font style="font-family:inherit;font-size:10pt;">June 30, 2019</font><font style="font-family:inherit;font-size:10pt;">, </font><font style="font-family:inherit;font-size:10pt;">$4.3 million</font><font style="font-family:inherit;font-size:10pt;"> of the Company’s property and equipment, net were held in the U.S. and </font><font style="font-family:inherit;font-size:10pt;">none</font><font style="font-family:inherit;font-size:10pt;"> were in Ireland. As of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2018</font><font style="font-family:inherit;font-size:10pt;">, </font><font style="font-family:inherit;font-size:10pt;">$52.8 million</font><font style="font-family:inherit;font-size:10pt;"> of the Company's property and equipment, net were held in the U.S. and </font><font style="font-family:inherit;font-size:10pt;">none</font><font style="font-family:inherit;font-size:10pt;"> were in Ireland.</font></div><div style="line-height:120%;padding-top:12px;text-align:justify;text-indent:36px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company does not own or operate facilities for the manufacture, packaging, labeling, storage, testing or distribution of nonclinical or clinical supplies of any of its drug candidates. The Company instead contracts with and relies on third-parties to manufacture, package, label, store, test and distribute all preclinical development and clinical supplies of our drug candidates, and it plans to continue to do so for the foreseeable future. The Company also relies on third-party consultants to assist in managing these third-parties and assist with its manufacturing strategy.</font></div></div>
	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:12px;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates</font></div><div style="line-height:120%;padding-top:12px;text-align:justify;text-indent:30px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of the Condensed Consolidated Financial Statements in conformity with GAAP requires management to make judgments, estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosures. On an ongoing basis, management evaluates its estimates, including critical accounting policies or estimates related to revenue recognition, share-based compensation and research and development expenses. The Company bases its estimates on historical experience and on various other market specific and other relevant assumptions that management believes to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Because of the uncertainties inherent in such estimates, actual results may differ materially from these estimates.</font></div></div>

Files In Submission

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0001559053-19-000023-index-headers.html	Edgar Link	pending
0001559053-19-000023-index.html	Edgar Link	pending
0001559053-19-000023.txt	Edgar Link	pending
0001559053-19-000023-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
prothenargbfullcolora12.jpg	Edgar Link	pending
prta-20190630.xml	Edgar Link	completed
prta-20190630.xsd	Edgar Link	pending
prta-20190630_cal.xml	Edgar Link	unprocessable
prta-20190630_def.xml	Edgar Link	unprocessable
prta-20190630_lab.xml	Edgar Link	unprocessable
prta-20190630_pre.xml	Edgar Link	unprocessable
prta2019q210-q.htm	Edgar Link	pending
prta2019q210-qxex101.htm	Edgar Link	pending
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PROTHENA CORP PUBLIC LTD CO Stock $prta

2019 Q3 Form 10-Q Financial Statement

#000155905319000023 Filed on August 06, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PRTA PROTHENA CORP PUBLIC LTD CO Stock $prta

2019 Q3 Form 10-Q Financial Statement

#000155905319000023 Filed on August 06, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PRTA
PROTHENA CORP PUBLIC LTD CO Stock $prta