Represents the minimum age of ambulatory patient.

No definition available.

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Data Type:	xbrli:durationItemType
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- Definition

Represents number of countries.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
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- Definition

Represents number of patients tested in placebo controlled clinical trail for the purpose of evaluating safety and efficacy results of a drug.

+ References

No definition available.

+ Details

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Namespace Prefix:	ptct_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of states in European economic area.

+ References

No definition available.

+ Details

Name:	ptct_NumberOfStatesInEuropeanEconomicArea
Namespace Prefix:	ptct_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents duration for placebo controlled clinical trail for evaluating efficacy and safety of new drug.

+ References

No definition available.

+ Details

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Namespace Prefix:	ptct_
Data Type:	xbrli:durationItemType
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Period Type:	duration

- 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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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
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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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	3 Months Ended
The Company (Details) $ in Thousands	Aug. 31, 2014 state item	Mar. 31, 2016 USD ($) country	Dec. 31, 2015 USD ($)	Aug. 31, 2015
Minimum age of ambulatory patient	5 years
Number of member states of the European Economic Area \| state	31
Period of placebo controlled clinical trail	336 days
Number of patients tested in placebo controlled clinical trail \| item	174
Number of countries made availability of Translarna on a commercial basis \| country		20
Accumulated deficit \| $		$ (634,231)	$ (592,998)
Convertible debt \| 3.00% Convertible senior notes due 2022
Interest rate				3.00%