|
Commitments And Contingencies (Other) (Narrative) (Details) (USD $)
|
3 Months Ended |
0 Months Ended |
|
|
Mar. 31, 2015
|
Mar. 31, 2014
|
Aug. 01, 2014
|
Apr. 01, 2015
|
Dec. 31, 2014
|
| Commitments And Contingencies [Line Items] |
|
|
|
|
|
|
| Amount outstanding |
$ 42,000,000us-gaap_LineOfCredit
|
|
|
|
|
$ 0us-gaap_LineOfCredit
|
| Investment in unconsolidated joint ventures |
20,880,000us-gaap_PaymentsToAcquireInterestInJointVenture
|
|
1,889,000us-gaap_PaymentsToAcquireInterestInJointVenture
|
|
|
|
| Development of rental property |
12,519,000us-gaap_PaymentsToDevelopRealEstateAssets
|
|
7,357,000us-gaap_PaymentsToDevelopRealEstateAssets
|
|
|
|
| Purchase price of property |
19,658,000us-gaap_PaymentsToAcquireAndDevelopRealEstate
|
|
14,600,000us-gaap_PaymentsToAcquireAndDevelopRealEstate
|
|
|
|
| Eastchester Project [Member] |
|
|
|
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
|
|
|
| Percentage of interest in venture |
76.25%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= cli_EastchesterProjectMember
|
|
|
|
|
|
| Number of units |
108us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= cli_EastchesterProjectMember
|
|
|
|
|
|
| Project costs incurred to date |
15,400,000cli_ProjectCostsIncurredToDate
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= cli_EastchesterProjectMember
|
|
|
|
|
|
| Amount of project costs funded by members |
20,900,000cli_AmountOfProjectCostsFundedByMembers
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= cli_EastchesterProjectMember
|
|
|
|
|
|
| Total project costs |
50,000,000cli_EstimatedCostOfProject
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= cli_EastchesterProjectMember
|
|
|
|
|
|
| Property Lock-Ups [Member] |
|
|
|
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
|
|
|
| Number of properties |
7us-gaap_NumberOfRealEstateProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cli_PropertyLockUpsMember
|
|
|
|
|
|
| Properties aggregate net book value |
124,600,000cli_PropertyNetBookValue
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cli_PropertyLockUpsMember
|
|
|
|
|
|
| Expiration year |
2016
|
|
|
|
|
|
| Property Lock-Ups Expired [Member] |
|
|
|
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
|
|
|
| Number of properties |
110us-gaap_NumberOfRealEstateProperties
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cli_PropertyLockUpsExpiredMember
|
|
|
|
|
|
| Properties aggregate net book value |
1,300,000,000cli_PropertyNetBookValue
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cli_PropertyLockUpsExpiredMember
|
|
|
|
|
|
| Harborside Unit A Urban Renewal, LLC [Member] |
|
|
|
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
|
|
|
| Percentage of interest in venture |
85.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cli_HarborsideUnitaUrbanRenewalLLCMember
|
[1] |
|
|
|
|
| Development costs |
88,800,000us-gaap_DevelopmentCosts
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cli_HarborsideUnitaUrbanRenewalLLCMember
|
|
|
|
|
|
| Number of units |
763us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cli_HarborsideUnitaUrbanRenewalLLCMember
|
|
|
|
|
|
| Maximum borrowing capacity |
192,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cli_HarborsideUnitaUrbanRenewalLLCMember
|
|
|
|
|
|
| Amount outstanding |
0us-gaap_LineOfCredit
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cli_HarborsideUnitaUrbanRenewalLLCMember
|
|
|
|
|
|
| Interest rate |
5.197%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cli_HarborsideUnitaUrbanRenewalLLCMember
|
[2] |
|
5.197%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cli_HarborsideUnitaUrbanRenewalLLCMember
|
|
|
| Harborside Unit A Urban Renewal, LLC [Member] | Harborside Residential Project [Member] |
|
|
|
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
|
|
|
| Total project costs |
320,000,000cli_EstimatedCostOfProject
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= cli_HarborsideResidentialProjectMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cli_HarborsideUnitaUrbanRenewalLLCMember
|
|
|
|
|
|
| Harborside Unit A Urban Renewal, LLC [Member] | Construction Loan [Member] |
|
|
|
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
|
|
|
| Maximum borrowing capacity |
192,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cli_HarborsideUnitaUrbanRenewalLLCMember
|
|
|
|
|
|
| Mortgage loan, maturity date |
|
|
|
Aug. 01, 2029
|
|
|
| Harborside Unit A Urban Renewal, LLC [Member] | Parent Company [Member] |
|
|
|
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
|
|
|
| Total project costs |
42,200,000cli_EstimatedCostOfProject
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cli_HarborsideUnitaUrbanRenewalLLCMember
|
|
|
|
|
|
| 150 Main Street, L.L.C. [Member] | Construction Loan [Member] | Eastchester Project [Member] |
|
|
|
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
|
|
|
| Maximum borrowing capacity |
28,800,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= cli_EastchesterProjectMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cli_OneHundredFiftyMainStreetLLCMember
|
|
|
|
|
|
| Amount outstanding |
2,000,000us-gaap_LineOfCredit
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConstructionLoansMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= cli_EastchesterProjectMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= cli_OneHundredFiftyMainStreetLLCMember
|
|
|
|
|
|
| Wegmans Food Markets, Inc. [Member] |
|
|
|
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
|
|
|
| Costs of the project incurred |
9,300,000cli_ConstructionAndDevelopmentCostsIncurred
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cli_WegmansFoodMarketsIncMember
|
|
|
|
|
|
| Delivery date to tenant |
2016
|
|
|
|
|
|
| Area of property (in square feet) |
140,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cli_WegmansFoodMarketsIncMember
|
|
|
|
|
|
| Wegmans Food Markets, Inc. [Member] | Scenario, Forecast [Member] |
|
|
|
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
|
|
|
| Total project costs |
25,300,000cli_EstimatedCostOfProject
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cli_WegmansFoodMarketsIncMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember
|
|
|
|
|
|
| Multi-Family Properties [Member] |
|
|
|
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
|
|
|
| Number of units |
5,861us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= cli_MultipleFamilyPropertiesMember
|
|
|
|
|
|
| Subsequent Event [Member] | City Square Project [Member] |
|
|
|
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
|
|
|
| Number of units |
|
|
|
|
370us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= cli_CitySquareProjectMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
|
|
| Total project costs |
|
|
|
|
88,000,000cli_EstimatedCostOfProject
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= cli_CitySquareProjectMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
|
|
| Purchase price of property |
|
|
|
|
3,100,000us-gaap_PaymentsToAcquireAndDevelopRealEstate
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= cli_CitySquareProjectMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
|
|
| Contingent consideration |
|
|
|
|
$ 1,250,000us-gaap_BusinessCombinationContingentConsiderationLiability
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= cli_CitySquareProjectMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
|
|
| Minimum project start period |
|
|
|
|
12 months
|
|
|
|
|