XML 95 R47.htm IDEA: XBRL DOCUMENT
v3.19.3

Fair value of financial instruments and marketable securities - Narrative (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018 | May 31, 2019 | Aug. 23, 2018 | Aug. 31, 2015
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |
Realized gain (loss) |  | $ 0 |  |  |  |  |
Estimated fair value of deferred consideration payable | $ 19,300,000 | 19,300,000 |  | $ 18,300,000 |  |  |
Deferred consideration payable | 19,700,000 | 19,700,000 |  | 19,400,000 |  |  |
Unrealized Gain (Loss) on Investments |  | 2,529,000 | $ 0 |  |  |  |
Investment In MRI | 6,500,000 | 6,500,000 |  |  |  |  |
3.00% Convertible senior notes due 2022 | Convertible debt |  |  |  |  |  |  |
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |
Principal | 150,000,000 | 150,000,000 |  | 150,000,000 |  |  | $ 150,000,000.0
Interest rate ( as a percent ) |  |  |  |  |  |  | 3.00%
Fair value of convertible notes | 156,400,000 | 156,400,000 |  | 146,600,000 |  |  |
1.50% Convertible senior notes due 2026 | Convertible debt |  |  |  |  |  |  |
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |
Principal | $ 287,500,000 | $ 287,500,000 |  |  |  |  |
Interest rate ( as a percent ) | 1.50% | 1.50% |  |  |  |  |
Fair value of convertible notes | $ 273,800,000 | $ 273,800,000 |  |  |  |  |
Agilis |  |  |  |  |  |  |
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |
Development milestone payments which the entity is obligated to pay |  |  |  | $ 40,000,000.0 |  | $ 40,000,000.0 |
Estimated fair value of deferred consideration payable |  |  |  |  |  | $ 38,100,000 |
Agilis | Minimum |  |  |  |  |  |  |
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |
Product sales | 2.00% | 2.00% |  | 2.00% |  |  |
Agilis | Maximum |  |  |  |  |  |  |
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |
Product sales | 6.00% | 6.00% |  | 6.00% |  |  |
Development milestone payments which the entity is obligated to pay | $ 60,000,000.0 | $ 60,000,000.0 |  | $ 60,000,000.0 |  |  |
Priority review voucher amount |  | 535,000,000.0 |  | 535,000,000.0 |  |  |
Net sales amount | 150,000,000.0 | 150,000,000.0 |  | 150,000,000.0 |  |  |
Non-collaborative Arrangement Transactions | Agilis |  |  |  |  |  |  |
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |
Development milestone payments which the entity is obligated to pay | 40,000,000.0 | 40,000,000.0 |  |  |  |  |
Recurring basis | Total |  |  |  |  |  |  |
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |
Estimated fair value of deferred consideration payable | 39,000,000 | 39,000,000 |  | $ 37,700,000 |  |  |
Common stock |  |  |  |  |  |  |
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |
Shares owned |  |  |  |  | $ 4,000,000.0 |  |
Fair value of shares (in dollars per share) |  |  |  |  | $ 3.10 |  |
Unrealized Gain (Loss) on Investments | $ 2,400,000 | $ 2,500,000 |  |  |  |  |

X
- Definition Business Combination, Consideration, Liability, Deferred Consideration Payable + References No definition available. + Details
Name: | ptct_BusinessCombinationConsiderationLiabilityDeferredConsiderationPayable
Namespace Prefix: | ptct_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Business Combination, Consideration, Liability, Deferred Consideration Payable- Current + References No definition available. + Details
Name: | ptct_BusinessCombinationConsiderationLiabilityDeferredConsiderationPayableCurrent
Namespace Prefix: | ptct_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contingent Liability, Milestone, Potential Achievements, Net Sales Milestone And Regulatory Approval + References No definition available. + Details
Name: | ptct_ContingentLiabilityMilestonePotentialAchievementsNetSalesMilestone
Namespace Prefix: | ptct_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contingent Liability, Milestone, Potential Achievements, Priority Review Voucher Amount + References No definition available. + Details
Name: | ptct_ContingentLiabilityMilestonePotentialAchievementsPriorityReviewVoucherAmount
Namespace Prefix: | ptct_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Contingent Liability, Milestone, Potential Achievements, Product Sales Percentage + References No definition available. + Details
Name: | ptct_ContingentLiabilityMilestonePotentialAchievementsProductSalesPercentage
Namespace Prefix: | ptct_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the development milestones payments which the entity is obligated to pay under certain contractual agreements. + References No definition available. + Details
Name: | ptct_DevelopmentMilestonePaymentObligations
Namespace Prefix: | ptct_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Investment In MRI + References No definition available. + Details
Name: | ptct_InvestmentInMRI
Namespace Prefix: | ptct_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611 + Details
Name: | us-gaap_DebtInstrumentFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27357-111563 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleRealizedGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition For investments which are quantified by principal amount, the principle balance held at close of period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 50 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=99383244&loc=d3e12121-115841 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-12C.Column B) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14.Column B) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611322-123010 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12.Column B) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611133-123010 + Details
Name: | us-gaap_InvestmentOwnedBalancePrincipalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Price of a single share of a number of saleable stocks of a company. + References No definition available. + Details
Name: | us-gaap_SharePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of investments, not including unrealized gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, held at each balance sheet date and included in earnings for the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
Name: | us-gaap_UnrealizedGainLossOnInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=ptct_ConvertibleSeniorNotes3.0PercentDue2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_ConvertibleDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=ptct_ConvertibleSeniorNotes1.5DueSeptember152026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=ptct_AgilisMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=us-gaap_NoncollaborativeArrangementTransactionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |