Commitments and Contingencies (Details) $ in Millions	1 Months Ended	9 Months Ended
Mar. 31, 2015 USD ($) person	Sep. 30, 2015 USD ($)
Allergan
Collaboration Revenue.
Payment received to fund expansion of clinical trial	$ 10.0	$ 10.0
Number of patients before expansion of the trial \| person	500
Number of patients after expansion of the trial \| person	620
Option agreement and a license agreement \| Minimum
Collaboration Revenue.
Tiered royalties that could be received, as a percentage of net sales of licensed products		10.00%
Option agreement and a license agreement \| Maximum
Collaboration Revenue.
Tiered royalties that could be received, as a percentage of net sales of licensed products		20.00%
Option agreement and a license agreement \| Allergan
Collaboration Revenue.
Consideration received upon the grant of the option		$ 0.0
Option exercise fee		65.0
Aggregate potential consideration		$ 365.0
Term of royalty on sales from the first commercial sale of product		10 years

- Definition

Represents the consideration received by the reporting entity upon grant of option to the counterparty under the agreement.

+ References

No definition available.

+ Details

Name:	trvn_CollaborativeArrangementConsiderationReceivedUponGrantOfOption
Namespace Prefix:	trvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Describes the maximum potential amount of consideration, undiscounted, which could be received under the agreement.

+ References

No definition available.

+ Details

Name:	trvn_CollaborativeArrangementMaximumPotentialConsideration
Namespace Prefix:	trvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the payment received to fund the expansion of a clinical trial.

+ References

No definition available.

+ Details

Name:	trvn_CollaborativeArrangementPaymentToFundExpansionOfClinicalTrial
Namespace Prefix:	trvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the term of royalty on sales receivable by the entity starting from the first commercial sale effected of the licensed product under the agreement.

+ References

No definition available.

+ Details

Name:	trvn_CollaborativeArrangementTermOfRoyaltyOnSalesFromFirstCommercialSaleOfLicensedProduct
Namespace Prefix:	trvn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the tiered royalty that could be received, expressed as a percentage of net sales of licensed products.

+ References

No definition available.

+ Details

Name:	trvn_CollaborativeArrangementTieredRoyaltyRevenueThatCouldBeReceivedAsAPercentageOfNetSalesOfLicensedProducts
Namespace Prefix:	trvn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the upfront option exercise fee included in the potential consideration.

+ References

No definition available.

+ Details

Name:	trvn_CollaborativeArrangementUpfrontOptionExerciseFee
Namespace Prefix:	trvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the number of patients after the expansion of the trial.

+ References

No definition available.

+ Details

Name:	trvn_NumberOfPatientsAfterExpansionOfTrial
Namespace Prefix:	trvn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of patients before the expansion of the trial.

+ References

No definition available.

+ Details

Name:	trvn_NumberOfPatientsBeforeExpansionOfTrial
Namespace Prefix:	trvn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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

- Details

Name:	us-gaap_CounterpartyNameAxis=trvn_ActavisFormerlyForestLaboratoriesHoldingsLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: