XML 53 R42.htm IDEA: XBRL DOCUMENT
v3.23.3

Fair Value Measurements - Unobservable Inputs (Details) | Sep. 30, 2023
--- | ---
Discount rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Investment in unconsolidated subsidiaries, measurement input | 0.245
Weighted average, measurement input | 0.00%
Other assets, measurement input | 0.245
Other assets, weighted average, measurement input | 0.00%
Volatility |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Weighted average, measurement input | 41.80%
Volatility | Minimum |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Investment in unconsolidated subsidiaries, measurement input | 0.400
Volatility | Maximum |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Investment in unconsolidated subsidiaries, measurement input | 0.680
Risk free interest rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Weighted average, measurement input |
Risk free interest rate | Minimum |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Investment in unconsolidated subsidiaries, measurement input | 0.0454
Risk free interest rate | Maximum |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Investment in unconsolidated subsidiaries, measurement input | 0.0465
Discount Yield |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Investment in unconsolidated subsidiaries, measurement input | 0.250
Weighted average, measurement input | 0.00%

X
- Definition Equity Method Investment, Weighted Average, Measurement Input + References No definition available. + Details
Name: | cbre_EquityMethodInvestmentWeightedAverageMeasurementInput
Namespace Prefix: | cbre_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Other Assets, Measurement Input + References No definition available. + Details
Name: | cbre_OtherAssetsMeasurementInput
Namespace Prefix: | cbre_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Other Assets, Weighted Average, Measurement Input + References No definition available. + Details
Name: | cbre_OtherAssetsWeightedAverageMeasurementInput
Namespace Prefix: | cbre_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Value of input used to measure investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_EquitySecuritiesFvNiMeasurementInput
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDiscountRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputPriceVolatilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputRiskFreeInterestRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=cbre_MeasurementInputDiscountYieldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |