XML 51 R36.htm IDEA: XBRL DOCUMENT
v3.24.0.1

INTANGIBLE ASSETS (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
INTANGIBLE ASSETS |
Schedule of carrying amount of intangible assets, net of accumulated amortization and impairment charges | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | 2023 | ​
​ | ​ | ​ | ​ |  | Gross |  |  | ​ | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
​ | ​ | ​ | Carrying | ​ | ​ | ​ | ​ | Accumulated | ​ | Currency | ​ | Net Book | ​
​ | Estimated Useful Lives | ​ | Amount | ​ | Acquisitions | ​ | Amortization | ​ | Impact | ​ | Value | ​
Amortizable intangibles: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Customer relationships | 2 to 15 |  | years | ​ | $ | 78,183 | ​ | ​ | 700 | ​ | $ | (72,220) | ​ | $ | (120) | ​ | $ | 6,543 | ​
Noncompete agreements | 4 to 7 | ​ | years | ​ |  | 6,262 | ​ |  | 100 | ​ |  | (6,146) | ​ | ​ | 1 | ​ |  | 217 | ​
Software | 3 to 4 | ​ | years | ​ |  | 1,660 | ​ |  | — | ​ |  | (1,580) | ​ | ​ | — | ​ |  | 80 | ​
Backlog | 1 to 2 | ​ | years | ​ |  | 5,002 | ​ |  | — | ​ |  | (4,981) | ​ | ​ | (21) | ​ |  | — | ​
Databases | 4 to 15 | ​ | years | ​ |  | 13,218 | ​ |  | — | ​ |  | (8,455) | ​ | ​ | (180) | ​ |  | 4,583 | ​
Trademark and trade names | 3 to 5 | ​ | years | ​ |  | 2,590 | ​ |  | 600 | ​ |  | (1,998) | ​ | ​ | — | ​ |  | 1,192 | ​
Intangibles | ​ | ​ | ​ | ​ | $ | 106,915 | ​ | $ | 1,400 | ​ | $ | (95,380) | ​ | $ | (320) | ​ | $ | 12,615 | ​
​ ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | 2022 |
​ | ​ | ​ | ​ |  | Gross |  | ​ | ​ | ​ | ​ | ​ |  | ​ | ​ |  | ​ | ​ |
​ | ​ | ​ | Carrying | ​ | ​ | ​ | ​ | Accumulated | ​ | Currency | ​ | Net Book |
​ | Estimated Useful Lives | ​ | Amount |  | Acquisitions | ​ | Amortization |  | Impact |  | Value |
Amortizable intangibles: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Customer relationships | 2 to 15 |  | years | ​ | $ | 75,283 | ​ | $ | 2,900 | ​ | $ | (70,273) | ​ | $ | (115) | ​ | $ | 7,795 | ​
Noncompete agreements | 4 to 7 | ​ | years | ​ |  | 5,962 | ​ |  | 300 | ​ |  | (5,987) | ​ | ​ | — | ​ |  | 275 | ​
Software | 3 to 4 | ​ | years | ​ |  | 1,660 | ​ |  | — | ​ |  | (1,557) | ​ | ​ | — | ​ |  | 103 | ​
Backlog | 1 to 2 | ​ | years | ​ |  | 5,002 | ​ |  | — | ​ |  | (4,981) | ​ | ​ | (21) | ​ |  | — | ​
Databases | 4 to 15 | ​ | years | ​ |  | 13,218 | ​ |  | — | ​ |  | (7,905) | ​ | ​ | (183) | ​ |  | 5,130 | ​
Trademark and trade names | 3 to 5 | ​ | years | ​ |  | 1,490 | ​ |  | 1,100 | ​ |  | (1,513) | ​ | ​ | — | ​ |  | 1,077 | ​
Intangibles | ​ | ​ | ​ | ​ | $ | 102,615 | ​ | $ | 4,300 | ​ | $ | (92,216) | ​ | $ | (319) | ​ | $ | 14,380 | ​
​
Schedule of estimated future amortization expense | ​
​ | ​ | ​ | ​ | ​
2024 |  | $ | 2,927 |
2025 | ​ |  | 2,391 | ​
2026 | ​ |  | 1,774 | ​
2027 | ​ |  | 1,444 | ​
2028 | ​ | ​ | 1,253 | ​
Thereafter | ​ |  | 2,826 | ​
​ | ​ | $ | 12,615 | ​
​

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

X
- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
Name: | us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
Name: | us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration