Organization and Business (Details)	9 Months Ended
Sep. 30, 2017 product
Organization and Business
Number of proprietary products in clinical development	2

Represents the number of proprietary products and several proprietary product candidates in clinical development addresses address large market opportunities in epilepsy and attention deficit hyperactivity disorder.

No definition available.

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