XML 94 R79.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Note 10 - Intangible Assets - Acquired Intangible Assets (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($)
Estimated weighted average amortization period (Year) | 8 years 2 months 12 days
Intangible assets, acquired | $ 23,338
Customer Lists and Relationships [Member] |
Finite life intangible assets, acquired | $ 18,918
Estimated weighted average amortization period (Year) | 9 years 8 months 12 days
Trademarks and Trade Names [Member] |
Finite life intangible assets, acquired | $ 700
Estimated weighted average amortization period (Year) | 2 years
Brokerage Backlog [Member] |
Finite life intangible assets, acquired | $ 2,820
Estimated weighted average amortization period (Year) | 6 months
Other Intangible Assets [Member] |
Finite life intangible assets, acquired | $ 900
Estimated weighted average amortization period (Year) | 5 years

X
- Definition Amount of increase in assets, excluding financial assets, lacking physical substance, from an acquisition. + References No definition available. + Details
Name: | cigi_IntangibleAssetsAcquired
Namespace Prefix: | cigi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
Name: | us-gaap_FinitelivedIntangibleAssetsAcquired1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=cigi_CustomerListsAndRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TrademarksAndTradeNamesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=cigi_BrokerageBacklogMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OtherIntangibleAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |