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Nature of the Business and Basis of Presentation (Details) | 12 Months Ended
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Dec. 31, 2021 item
Nature of the Business and Basis of Presentation |
Number of collaborations | 2

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

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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