XML 41 R27.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Summary of significant accounting policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Accounting Policies [Abstract] |
Schedule of estimated useful life of related assets | Depreciation is computed starting when the asset is placed into service on a straight-line basis over the estimated useful life of the related asset as follows:
Leasehold improvements | Lesser of useful life or lease term
Computer equipment and software | 3 years
Furniture, fixtures, and lab equipment | 3 to 7 years

X
- Definition Tabular disclosure of the useful life of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and are not intended for resale. + References No definition available. + Details
Name: | ptct_PropertyPlantAndEquipmentUsefulLifeTableTextBlock
Namespace Prefix: | ptct_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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