- Definition

Represents the earning recognized and the payment received for the achievement of a predefined milestone under the license agreement.

+ References

No definition available.

+ Details

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Namespace Prefix:	incy_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents reimbursable costs pertaining to license agreements.

+ References

No definition available.

+ Details

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Namespace Prefix:	incy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents reimbursed costs pertaining to research and development expenses.

+ References

No definition available.

+ Details

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Namespace Prefix:	incy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the upfront and immediate milestone payment received under the license agreement.

+ References

No definition available.

+ Details

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Namespace Prefix:	incy_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
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Balance Type:
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- Details

Name:	incy_AchievementOfMilestoneAxis=incy_RegulatoryMilestonesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ProductOrServiceAxis=incy_PemazyreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	incy_AchievementOfMilestoneAxis=incy_CommercializationMilestonesMember
Namespace Prefix:
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License agreements - Innovent (Details) - Innovent - USD ($) $ in Millions	1 Months Ended				3 Months Ended		6 Months Ended
	Apr. 30, 2020	Jun. 30, 2019	Jan. 31, 2019	Dec. 31, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
License agreements
Upfront and immediate milestone payment to be received under license agreement			$ 40.0
Research and development expenses reimbursed					$ 2.6	$ 0.5	$ 2.6	$ 0.5
Reimbursable costs included in accounts receivable					$ 2.2		$ 2.2		$ 3.0
Regulatory Milestones
License agreements
Amount recognized and received for the achievement of a predefined milestone		$ 20.0
Regulatory Milestones \| PEMAZYRE
License agreements
Amount recognized and received for the achievement of a predefined milestone	$ 5.0
Development and Regulatory Milestones \| Maximum
License agreements
Upfront and immediate milestone payment to be received under license agreement				$ 129.0
Sales and Commercial Milestones \| Maximum
License agreements
Upfront and immediate milestone payment to be received under license agreement				$ 202.5