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Organization and Summary of Significant Accounting Policies - Additional Information (Detail) (Merck KGaA)
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3 Months Ended |
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Mar. 31, 2015
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Merck KGaA
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| Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] | |
| Percentage share of eligible worldwide development expenses |
70.00%thld_WorldwideDevelopmentExpensesSharePercentage / us-gaap_TypeOfArrangementAxis = thld_MerckKGaAMember |
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- Definition
Merck KGaA's percentage share of worldwide development expenses. No definition available.
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- Details
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