Organization and Business (Details)	6 Months Ended
Jun. 30, 2018 product
Organization and Business
Number of proprietary 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