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v3.25.3

Commitments and Contingencies - Narrative (Details) $ in Millions | 9 Months Ended
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Sep. 30, 2025 USD ($)
Agilis |
Other Commitments |
Development milestone payments which the entity is obligated to pay | $ 40.0
Agilis | Minimum |
Other Commitments |
Product sales (as a percent) | 2.00%
Agilis | Maximum |
Other Commitments |
Development milestone payments which the entity is obligated to pay | $ 60.0
Priority review voucher amount | 535.0
Potential sales milestones | $ 150.0
Product sales (as a percent) | 6.00%
BioElectron | Maximum |
Other Commitments |
Development milestone payments which the entity is obligated to pay | $ 200.0
Upstaza/Kebilidi | Agilis |
Other Commitments |
Potential sales milestones | $ 50.0

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- 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

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- 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: | debit
Period Type: | duration

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

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

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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- Details
Name: | srt_ProductOrServiceAxis=ptct_EmflazaAndKebilidiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |