Employee Benefit 401(k) Plans And Deferred Retirement Compensation Agreements (Details) (USD $)
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3 Months Ended | |
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Mar. 31, 2015
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Mar. 31, 2014
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Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] | ||
Minimum employee subscription rate, percentage of compensation | 1.00%cli_SavingsRetirementPlanEmployeeMinimumSubscriptionRate | |
Maximum employee subscription rate, percentage of compensation | 60.00%cli_SavingsRetirementPlanEmployeeMaximumSubscriptionRate | |
Employee pre-tax contributions vested percentage | 100.00%cli_EmployeePreTaxContributionsVestedPercent | |
Vesting rate | 20.00%cli_VestingRate | |
Percentage vested after total service period | 100.00%cli_PercentVestedAfterTotalServicePeriod | |
Employees' vesting rights | Participants are always 100 percent vested in their pre-tax contributions and will begin vesting in any matching or profit sharing contributions made on their behalf after two years of service with the Company at a rate of 20 percent per year, becoming 100 percent vested after a total of six years of service with the Company. | |
Expenses for employee benefit plan | $ 0us-gaap_EmployeeBenefitsAndShareBasedCompensation | $ 25,000us-gaap_EmployeeBenefitsAndShareBasedCompensation |
Minimum [Member] | ||
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] | ||
Employer contribution vesting period | 2 years | |
Maximum [Member] | ||
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] | ||
Employer contribution vesting period | 6 years | |
Messr Lefkowitz And Messr Thomas [Member] | ||
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] | ||
Expenses for employee benefit plan |
1,200,000us-gaap_EmployeeBenefitsAndShareBasedCompensation / us-gaap_TitleOfIndividualAxis = cli_MessieurLefkowitzAndMessieurThomasMember |
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Messr Hersh [Member] | ||
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] | ||
Expenses for employee benefit plan |
2,300,000us-gaap_EmployeeBenefitsAndShareBasedCompensation / us-gaap_TitleOfIndividualAxis = cli_MessieurHershMember |
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Deferred Retirement Compensation Units [Member] | ||
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] | ||
Expenses for employee benefit plan |
$ 0us-gaap_EmployeeBenefitsAndShareBasedCompensation / us-gaap_AwardTypeAxis = cli_DeferredRetirementCompensationUnitsMember |
$ 1,200,000us-gaap_EmployeeBenefitsAndShareBasedCompensation / us-gaap_AwardTypeAxis = cli_DeferredRetirementCompensationUnitsMember |
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Employee pre-tax contributions vested percent. No definition available.
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Percent vested after total service period. No definition available.
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Savings Retirement Plan Employee Maximum Subscription Rate No definition available.
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Savings Retirement Plan Employee Minimum Subscription Rate No definition available.
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Savings Retirement Plan Vesting Period No definition available.
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Savings Retirement Plan Vesting Rights No definition available.
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Vesting rate No definition available.
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Costs and payments related to employee benefits and equity-based compensation, such as pension expense and contributions, other postretirement benefits expense and payments, stock or unit options expense, and amortization of restricted stock or unit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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