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Commitments And Contingencies (Roseland Contingent Consideration) (Narrative) (Details) (USD $)
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3 Months Ended | |
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Mar. 31, 2015
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Oct. 23, 2012
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| Roseland Partners, L.L.C. [Member] | ||
| Business Acquisition, Contingent Consideration [Line Items] | ||
| Fair value of contingent consideration |
$ 10,000,000us-gaap_BusinessCombinationContingentConsiderationLiability / us-gaap_BusinessAcquisitionAxis = cli_RoselandPartnersLLCMember |
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| Business acquisition, contingent cash payment |
900,000us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh / us-gaap_BusinessAcquisitionAxis = cli_RoselandPartnersLLCMember |
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| Purchase accounting adjustments |
0us-gaap_GoodwillPurchaseAccountingAdjustments / us-gaap_BusinessAcquisitionAxis = cli_RoselandPartnersLLCMember |
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| Completion/Start Of Certain Developments [Member] | Minimum [Member] | ||
| Business Acquisition, Contingent Consideration [Line Items] | ||
| Probability of occurrence |
92.00%cli_ProbabilityOfOccurrence / us-gaap_ContingentConsiderationByTypeAxis = cli_CompletionStartOfCertainDevelopmentsMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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| Completion/Start Of Certain Developments [Member] | Maximum [Member] | ||
| Business Acquisition, Contingent Consideration [Line Items] | ||
| Probability of occurrence |
99.00%cli_ProbabilityOfOccurrence / us-gaap_ContingentConsiderationByTypeAxis = cli_CompletionStartOfCertainDevelopmentsMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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| Obtaining Of Tax Credits/Grants [Member] | ||
| Business Acquisition, Contingent Consideration [Line Items] | ||
| Probability of occurrence |
50.00%cli_ProbabilityOfOccurrence / us-gaap_ContingentConsiderationByTypeAxis = cli_ObtainingOfTaxCreditsGrantsMember |
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| Obtaining Of Tax Credits/Grants [Member] | Roseland Partners, L.L.C. [Member] | ||
| Business Acquisition, Contingent Consideration [Line Items] | ||
| Business acquisition, contingent cash payment |
$ 3,000,000us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh / us-gaap_BusinessAcquisitionAxis = cli_RoselandPartnersLLCMember / us-gaap_ContingentConsiderationByTypeAxis = cli_ObtainingOfTaxCreditsGrantsMember |
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- Definition
Probability Of Occurrence No definition available.
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- Definition
For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of liability recognized arising from contingent consideration in a business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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