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Represents the number of shares of Class A stock in the conversion ratio for conversion of Class A into common stock.

No definition available.

Name:	thrx_ClassAToCommonConversionRatioClassA
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Data Type:	xbrli:sharesItemType
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Period Type:	duration

Represents the number of shares of common stock in the conversion ratio for conversion of Class A into common stock.

No definition available.

Name:	thrx_ClassAToCommonConversionRatioCommon
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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Represents the number of structurally different product candidates which the entity is obligated to use diligent efforts to discover at its own cost after the collaborator licenses a program.

No definition available.

Name:	thrx_CollaborationArrangementObligationToDiscoverStructurallyDifferentProductsAfterLicense
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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Represents the revenue recognized from all sources, including amortization of deferred revenue, royalties from product sales, and revenue from product sales less the costs of delivered product and other charges directly related to the product.

No definition available.

Name:	thrx_CollaborationArrangementRevenueNet
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Represents the rate of royalty payable to the counterparty pursuant to terms of termination agreement of a collaboration agreement.

No definition available.

Name:	thrx_CollaborativeAgreementTerminationRateOfRoyaltyPayable
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Data Type:	num:percentItemType
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Period Type:	duration

Represents the period for which of royalty is payable to the counterparty pursuant to terms of termination agreement of a collaboration agreement.

No definition available.

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Data Type:	xbrli:integerItemType
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Period Type:	instant

Name:	thrx_CollaborativeArrangementAbstract
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Period Type:	duration

Represents the period within which a portion of the potential milestone payments could be payable.

No definition available.

Name:	thrx_CollaborativeArrangementBeginningOfMilestonePaymentsPeriod
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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Represents the maximum obligation for milestone payments under a collaborative arrangement, if both a single-agent and a combination product or two different combination products are launched under the collaborative arrangement in multiple regions of the world.

No definition available.

Name:	thrx_CollaborativeArrangementMaximumObligationForMilestonePayments
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Data Type:	xbrli:monetaryItemType
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Represents the amount of milestone payments receivable as of the balance sheet date.

No definition available.

Name:	thrx_CollaborativeArrangementMilestonePaymentsReceivable
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Represents the cumulative amount of milestone payments received under the collaborative arrangement.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the number of combination products which are agreed to be developed and commercialized under the collaborative arrangement.

No definition available.

Name:	thrx_CollaborativeArrangementNumberOfCombinationProductsToBeDevelopedAndCommercialized
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Data Type:	xbrli:integerItemType
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Represents the number of combination products which may be launched under the collaborative arrangement.

No definition available.

Name:	thrx_CollaborativeArrangementNumberOfCombinationProductsToBeLaunched
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Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

Represents potential future revenue from upfront and milestone payments under a collaborative arrangement for programs with single-agent medicines.

No definition available.

Name:	thrx_CollaborativeArrangementPotentialFutureRevenueFromUpfrontAndMilestonePaymentsCombinationAgentMedicines
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Represents potential future revenue from upfront and milestone payments under a collaborative arrangement for programs with single-agent medicines.

No definition available.

Name:	thrx_CollaborativeArrangementPotentialFutureRevenueFromUpfrontAndMilestonePaymentsSingleAgentMedicines
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	thrx_CollaborativeArrangementRevenueAbstract
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Data Type:	xbrli:stringItemType
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Period Type:	duration

Represents the royalty rate for combination products as a percentage of the rate applicable for single products under a collaborative arrangement.

No definition available.

Name:	thrx_CollaborativeArrangementRoyaltyRateCombinationProductsAsPercentageOfSingleProducts
Namespace Prefix:	thrx_
Data Type:	num:percentItemType
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Period Type:	duration

Represents the royalty rate which the entity will receive under the collaboration agreement on the first defined level of annual global net sales.

No definition available.

Name:	thrx_CollaborativeArrangementRoyaltyRateDefinedLevelOne
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Data Type:	num:percentItemType
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Represents the royalty rate which the entity will receive under the collaboration agreement on sales which exceed the first defined level of annual global net sales.

No definition available.

Name:	thrx_CollaborativeArrangementRoyaltyRateDefinedLevelTwo
Namespace Prefix:	thrx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the annual global net sales amount which determines the royalty rate applied under the collaboration arrangement.

No definition available.

Name:	thrx_CollaborativeArrangementSpecifiedSalesLevelForDeterminingRoyaltyRate
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the cumulative amount of upfront fees received under the collaborative arrangement.

No definition available.

Name:	thrx_CollaborativeArrangementUpfrontFeesReceived
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the amount of the purchase agreements for finished goods inventory.

No definition available.

Name:	thrx_PurchaseAgreementsAmountForFinishedGoodsMaximum
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the amount of the purchase agreements for the active pharmaceutical ingredient and raw materials being manufactured.

No definition available.

Name:	thrx_PurchaseAgreementsAmountForPharmaceuticalIngredientAndRawMaterials
Namespace Prefix:	thrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the amount of the liability to customers attributable to sales allowances for governmental rebates and chargebacks, which was assumed and recorded upon the contract termination.

No definition available.

Name:	thrx_SalesAllowancesLiability
Namespace Prefix:	thrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Number of shares issued during the period as a result of private placement to a related party.

No definition available.

Name:	thrx_StockIssuedDuringPeriodSharesPrivatePlacementToRelatedParty
Namespace Prefix:	thrx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Value stock issued during the period as a result of private placement to a related party, net of issuance cost.

No definition available.

Name:	thrx_StockIssuedDuringPeriodValuePrivatePlacementToRelatedParty
Namespace Prefix:	thrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Represents the cumulative amount of total upfront fees and milestone payments received under the collaborative arrangement.

No definition available.

Name:	thrx_UpfrontAndMilestonePaymentsReceived
Namespace Prefix:	thrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents the cumulative amount of upfront, milestone and other payments received under the collaborative arrangement.

No definition available.

Name:	thrx_UpfrontMilestoneAndOtherFeesReceived
Namespace Prefix:	thrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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Name:	us-gaap_CommonStockNumberOfSharesParValueAndOtherDisclosuresAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 32

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 4

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

Name:	us-gaap_ConversionOfStockSharesConverted1
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Data Type:	xbrli:sharesItemType
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Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 13

-Section A

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 13.A.4(a).Q1)

-URI http://asc.fasb.org/extlink&oid=6600647&loc=d3e214044-122780

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The amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. For cash flows, this element primarily pertains to amortization of deferred credits on long-term arrangements. As a noncash item, it is deducted from net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 13

-Section A

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Section 45

-Paragraph 28

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 13.A.4(a).Q1)

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Name:	us-gaap_RevenueRecognitionAbstract
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Revenue earned during the period from the leasing or otherwise lending to a third party the entity's rights or title to certain property. Royalty revenue is derived from a percentage or stated amount of sales proceeds or revenue generated by the third party using the entity's property. Examples of property from which royalties may be derived include patents and oil and mineral rights.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 5

-Section 03

-Paragraph 1

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(e))

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Name:	us-gaap_RoyaltyRevenue
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Data Type:	xbrli:monetaryItemType
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The aggregate selling price reductions recognized during an accounting period including, but not limited to, the sale of defective or nonconforming goods, a strategy to increase sales (generally over the short-term), move slow-moving items, develop distribution channels, or reward valuable customers. Allowances are a deduction from gross revenue in arriving at net revenue.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 5

-Section 03

-Paragraph 1

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(a))

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Name:	us-gaap_SalesAllowancesGoods
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Number of new stock issued during the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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

Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.