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v3.19.3

Summary of significant accounting policies (Details) | 9 Months Ended
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Sep. 30, 2019 instrument issuer item
Concentrations of Credit Risk |
Number of issuer to which company limits the amount of credit exposure other than US Government guaranteed securities | issuer | 1
Number of financial investment to which company limits the amount of credit exposure other than US Government guaranteed securities | instrument | 1
Variable Interest Entities |
Number of entities in which variable interest held | item | 0
JAKAFI |
Inventory |
Shelf life for finished goods inventory, maximum | 36 months

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- References No definition available. + Details
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Namespace Prefix: | incy_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of financial investment to which entity limits the amount of credit exposure other than US Government guaranteed securities. + References No definition available. + Details
Name: | incy_CreditExposureLimitationNumberOfFinancialInvestmentOtherThanUnitedStatesGovernmentGuaranteedSecurities
Namespace Prefix: | incy_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of issuer to which entity limits the amount of credit exposure other than US Government guaranteed securities. + References No definition available. + Details
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Namespace Prefix: | incy_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the maximum useful life of merchandise or goods held by the entity that are readily available for sale. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

X
- Definition n/a + References No definition available. + Details
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- Definition Represents the number of Variable Interest Entities as on date. + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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- Details
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