XML 61 R34.htm IDEA: XBRL DOCUMENT
v3.20.4

Nature of the Business (Details) | 12 Months Ended
--- | ---
Dec. 31, 2020 item
Nature of the Business and Basis of Presentation |
Number of collaborations | 2

X
- Definition The number of agreements or collaborations. + References No definition available. + Details
Name: | srrk_NumberOfAgreements
Namespace Prefix: | srrk_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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