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Balance Sheet Components (Additional Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Zai Lab
Inventory [Line Items]
Business combination deferred consideration	$ 5.3
La Jolla Pharmaceutical Company
Inventory [Line Items]
Net fair value adjustment of inventory from acquisition	9.2	$ 23.0
Amortization of fair value adjustments of Cost of products sold	$ 13.8	$ 0.2	$ 10.0

X

- Definition

Amortization of fair value adjustments of cost of products sold.

+ References

No definition available.

+ Details

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

X

- Definition

Business combination deferred consideration.

+ References

No definition available.

+ Details

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Namespace Prefix:	inva_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Value of net fair value adjustment of inventory resulting from the acquisition.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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X

- 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

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Period Type:	duration

X

- Details

Name:	srt_CounterpartyNameAxis=inva_ZaiLabMember
Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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