XML 55 R40.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Note 6 - Acquisition-related Items (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Notes Tables |
Schedule of Acquisition Related Expenses [Table Text Block] |
|  | Year ended December 31, |
|  | 2021 |  |  | 2020 |
Transaction costs |  | $ | 13,030 |  |  | $ | 16,169 |
Contingent consideration fair value adjustments (note 24) |  |  | 42,686 |  |  |  | 23,393 |
Contingent consideration compensation expense |  |  | 5,292 |  |  |  | 6,286 |
|  | $ | 61,008 |  |  | $ | 45,848 |

X
- Definition The tabular disclosure of the schedule of acquisition-related expenses. + References No definition available. + Details
Name: | cigi_ScheduleOfAcquisitionRelatedExpensesTableTextBlock
Namespace Prefix: | cigi_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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