Minimum guaranteed amount owed to company from license and royalty revenue.

No definition available.

Name:	supn_MinimumGuaranteedAmountsOwedToCompany
Namespace Prefix:	supn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of proprietary commercial products market by the company.

+ References

No definition available.

+ Details

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

- Definition

Represents the period within which a product can be expired.

+ References

No definition available.

+ Details

Name:	supn_ProductsShelfLife
Namespace Prefix:	supn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the period within which a product can be returned by the customers to the entity subsequent to the expiry date.

+ References

No definition available.

+ Details

Name:	supn_SalesReturnPeriod
Namespace Prefix:	supn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the period within which a product can be returned by the customers to the entity prior to the expiry date.

+ References

No definition available.

+ Details

Name:	supn_SalesReturnPeriodPriorToExpiration
Namespace Prefix:	supn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=us-gaap_RoyaltyAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Summary of Significant Accounting Policies - Revenue Recognition (Details)	6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2020 USD ($) numberOfMarketProducts	Jun. 30, 2020 USD ($) product
Revenue Recognition
Sales return period prior to expiry date	6 months
Sales return period subsequent to expiry date	12 months
Number of commercial products		5	5
Maximum
Revenue Recognition
Product shelf life	60 months
Royalty revenue agreements
Revenue Recognition
Guaranteed minimum amounts	$ 0	$ 0	$ 0