Represents the minimum age of ambulatory patient.

No definition available.

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- Definition

Represents the number of states in European economic area.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- Definition

Represents the term of market access procss, including including pricing and reimbursement negotiations.

+ References

No definition available.

+ Details

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Namespace Prefix:	ptct_
Data Type:	xbrli:durationItemType
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

+ Details

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Period Type:	instant

- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.31(a)(3))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 31

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ptct_ConvertibleSeniorNotes3.0PercentDue2022Member
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The Company (Details) $ in Thousands		1 Months Ended	9 Months Ended
The Company (Details) $ in Thousands	Aug. 04, 2014	Aug. 31, 2014 state	Sep. 30, 2015 USD ($)	Aug. 31, 2015	Dec. 31, 2014 USD ($)
Minimum age of ambulatory patient	5 years	5 years
Number of member states of the European Economic Area		31
Period of market access for launching new product			18 months
Accumulated deficit \| $			$ (542,050)		$ (422,551)
Convertible debt \| 3.0% Convertible senior notes due 2022
Interest rate				3.00%