Organization and Nature of Operations (Details)	12 Months Ended
Dec. 31, 2013 item
Organization and Nature of Operations
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