XML 55 R42.htm IDEA: XBRL DOCUMENT
v3.22.2

Fair value of financial instruments and marketable securities - Narrative (Details) | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 31, 2021 USD ($) | Feb. 28, 2021 USD ($) fund $ / shares | Jan. 31, 2020 USD ($) $ / shares | May 31, 2019 USD ($) $ / shares | Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($) | Dec. 31, 2021 USD ($) | Sep. 30, 2019 USD ($) | Aug. 31, 2015 USD ($)
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |  |  |  |  |
Write downs of available for sale debt securities |  |  |  |  | $ 0 |  | $ 0 |  |  |  |
Realized gain (loss) from sale of marketable securities |  |  |  |  | (300,000) | $ 0.0 | (400,000) | $ 700,000 |  |  |
Increase in allowance for credit losses |  |  |  |  | 0 | 0 | 0 | 0 |  |  |
Purchase of equity investments |  |  |  |  |  |  |  | 100,000 |  |  |
Unrealized gain (loss) on ClearPoint Equity Investment |  |  |  |  |  |  | 2,369,000 | 4,110,000 |  |  |
Purchase of convertible note |  |  |  |  |  |  | 40,429,000 | 192,931,000 |  |  |
Unrealized gain (loss) on convertible note |  |  |  |  |  |  | 1,995,000 | 4,326,000 |  |  |
Purchase of marketable securities - equity investments | $ 10,000,000.0 |  |  |  |  |  |  | 200,000,000 |  |  |
Redemption of marketable securities- equity investments |  |  |  |  |  |  | 3,630,000 |  |  |  |
Transfers of assets measured between Level 1, Level 2, and Level 3 |  |  |  |  | 0 |  | 0 |  | $ 0 |  |
Operating Expenses |  |  |  |  | 257,888,000 | 215,169,000 | 493,144,000 | 431,258,000 |  |  |
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Asset |  |  |  |  | 15,200,000 | (700,000) | 26,900,000 | (800,000) |  |  |
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 |  |  |  |  | 150,600,000 |  | 150,600,000 |  | 158,300,000 |  |
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 |  | 287,500,000 | $ 287,500,000 |
Interest rate ( as a percent ) |  |  |  |  | 1.50% |  | 1.50% |  |  | 1.50% |
Fair value of convertible notes |  |  |  |  | $ 300,400,000 |  | $ 300,400,000 |  | 305,300,000 |  |
Recurring basis |  |  |  |  |  |  |  |  |  |  |
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |  |  |  |  |
Fair value of convertible debt |  |  |  |  | 22,966,000 |  | 22,966,000 |  | 20,971,000 |  |
ClearPoint equity investment |  |  |  |  |  |  |  |  |  |  |
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |  |  |  |  |
Purchase of equity investments |  | $ 100,000 |  | $ 4,000,000.0 |  |  |  |  |  |  |
Share price (in USD per share) | $ / shares |  | $ 23.50 |  | $ 3.10 |  |  |  |  |  |  |
Unrealized gain (loss) on ClearPoint Equity Investment |  |  |  |  | 3,400,000 | (2,700,000) | 2,400,000 | 4,100,000 |  |  |
Marketable securities - equity investments |  |  |  |  | 16,900,000 |  | 16,900,000 |  | 14,500,000 |  |
ClearPoint convertible debt |  |  |  |  |  |  |  |  |  |  |
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |  |  |  |  |
Purchase of convertible debt investment |  |  | $ 10,000,000.0 |  |  |  |  |  |  |  |
Conversion price - convertible note | $ / shares |  |  | $ 6.00 |  |  |  |  |  |  |  |
Term of convertible note |  |  | 5 years |  |  |  |  |  |  |  |
Unrealized gain (loss) on convertible note |  |  |  |  | 3,500,000 | (3,500,000) | 2,000,000.0 | 4,300,000 |  |  |
Fair value of convertible debt |  |  |  |  | 23,000,000.0 |  | 23,000,000.0 |  | $ 21,000,000.0 |  |
Mutual Funds |  |  |  |  |  |  |  |  |  |  |
Financial assets and liabilities measured at fair value on recurring basis |  |  |  |  |  |  |  |  |  |  |
Purchase of marketable securities - equity investments |  | $ 200,000,000.0 |  |  |  |  |  |  |  |  |
Number of mutual funds invested in | fund |  | 2 |  |  |  |  |  |  |  |  |
Redemption of marketable securities- equity investments |  |  |  |  | 1,200,000 | 0 | 3,600,000 | 0 |  |  |
Unrealized gain on marketable securities - equity investments |  |  |  |  |  | 1,000,000.0 |  | 700,000 |  |  |
Unrealized loss on marketable securities - equity investments |  |  |  |  | 4,900,000 |  | 11,400,000 |  |  |  |
Unrealized foreign currency transaction gain (loss), net |  |  |  |  | $ (300,000) | $ 0 | $ 400,000 | $ 0 |  |  |

X
- Definition The price per share of the conversion feature embedded in the available-for-sale convertible debt securities. + References No definition available. + Details
Name: | ptct_AvailableForSaleDebtSecuritiesConversionPrice
Namespace Prefix: | ptct_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of unrealized gain (loss) on ClearPoint equity investment measured at fair value with change in fair value recognized in net income (FV-NI). + References No definition available. + Details
Name: | ptct_ClearpointEquityInvestmentFvniUnrealizedGainLoss
Namespace Prefix: | ptct_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of investment in convertible debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References No definition available. + Details
Name: | ptct_ConvertibleDebtSecurity
Namespace Prefix: | ptct_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of unrealized gain (loss) from foreign currency transactions on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References No definition available. + Details
Name: | ptct_EquitySecuritiesFvNiUnrealizedGainLossForeignCurrencyTransaction
Namespace Prefix: | ptct_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of transfers of assets measured on a recurring basis between Level 1, Level 2, and Level 3 of the fair value hierarchy. + References No definition available. + Details
Name: | ptct_FairValueAssetsTransfersBetweenLevel1Level2AndLevel3Amount
Namespace Prefix: | ptct_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The number of mutual funds invested in. + References No definition available. + Details
Name: | ptct_NumberOfMutualFundsInvestedIn
Namespace Prefix: | ptct_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Payments To Acquire Convertible Debt Investment + References No definition available. + Details
Name: | ptct_PaymentsToAcquireConvertibleDebtInvestment
Namespace Prefix: | ptct_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of increase (decrease) in the value of right to a contingent consideration asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e7008-128479 + Details
Name: | us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationAsset1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: 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=124435984&loc=d3e28551-108399 Reference 3: 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 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 + 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/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69C -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 55 -Paragraph 69B -URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612 Reference 3: 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=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1D -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611 + 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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: 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=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of increase (decrease) in allowance for credit loss of 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 326 -SubTopic 30 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleAllowanceForCreditLossPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of writeoff of allowance for credit 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/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 9 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoff
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Period between issuance and maturity of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of unrealized 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 No definition available. + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleUnrealizedGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740 + Details
Name: | us-gaap_EquitySecuritiesFvNi
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of unrealized gain on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117546-209714 + Details
Name: | us-gaap_EquitySecuritiesFvNiUnrealizedGain
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of unrealized loss on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123583765&loc=SL75117546-209714 + Details
Name: | us-gaap_EquitySecuritiesFvNiUnrealizedLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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 Amount of realized gain (loss) on investment in marketable security, including other-than-temporary impairment (OTTI). + References No definition available. + Details
Name: | us-gaap_MarketableSecuritiesRealizedGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. + References No definition available. + Details
Name: | us-gaap_OperatingExpenses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash outflow to acquire 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3151-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=124260329&loc=d3e26853-111562 + Details
Name: | us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of cash outflow for purchase of marketable security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=124260329&loc=d3e26853-111562 + Details
Name: | us-gaap_PaymentsToAcquireMarketableSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. + References No definition available. + Details
Name: | us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

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_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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