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v3.21.2

RISKS AND UNCERTAINTIES (Details) | 9 Months Ended
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Sep. 30, 2021
RISKS AND UNCERTAINTIES |
Debt to adjusted EBITDA ratio | 3.25

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- Definition Adjusted ration of debt to earnings before interest, taxes, depreciation and amortization. + References No definition available. + Details
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Namespace Prefix: | iii_
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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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