Organization and Business (Details)	9 Months Ended
Sep. 30, 2019 product
Organization and Nature of Operations
Number of commercial products	2

The number of proprietary commercial products market by the company.

No definition available.

Name:	supn_NumberOfProprietaryCommercialProducts
Namespace Prefix:	supn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration