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v3.25.4

Equity and Long-term Investments and Fair Value Measurements - (Additional Information) (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024
Fair Value Disclosures [Abstract] |  |
Fair value of assets or liabilities transfer between levels | $ 0 | $ 0

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- Definition Fair Value Of Assets Or Liabilities Transfer Between Levels + References No definition available. + Details
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Namespace Prefix: | inva_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration