Unsecured Revolving Credit Facility (Narrative) (Details) (USD $)
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12 Months Ended | 0 Months Ended |
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Dec. 31, 2014
item
entity
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Jul. 15, 2013
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Unsecured Revolving Credit Facility [Member] | ||
Line of Credit Facility [Line Items] | ||
Number of lending institutions |
17cli_LineOfCreditFacilityLendingInstitutionsNumber / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |
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Borrowing capacity under the credit facility |
$ 600,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |
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Expandable borrowing capacity under the credit facility |
1,000,000,000cli_LineOfCreditFacilityExpandableMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |
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Credit facility maturity date | Jul. 01, 2017 | |
Number of extension options |
2cli_DebtInstrumentNumberOfExtensionOptions / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |
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Credit facility, extension period | 6 months | |
Line of credit facility, bid feature, current borrowing capacity |
300,000,000cli_LineOfCreditFacilityBidFeatureCurrentBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |
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Terms of the unsecured facility | The terms of the unsecured facility include certain restrictions and covenants which limit, among other things the incurrence of additional indebtedness, the incurrence of liens and the disposition of real estate properties (to the extent that: (i) such property dispositions cause the Company to default on any of the financial ratios of the facility described below, or (ii) the property dispositions are completed while the Company is under an event of default under the facility, unless, under certain circumstances, such disposition is being carried out to cure such default), and which require compliance with financial ratios relating to the maximum leverage ratio (60 percent), the maximum amount of secured indebtedness (40 percent), the minimum amount of fixed charge coverage (1.5 times), the maximum amount of unsecured indebtedness (60 percent), the minimum amount of unencumbered property interest coverage (2.0 times) and certain investment limitations (generally 15 percent of total capitalization). | |
Terms of dividend restriction | If an event of default has occurred and is continuing, the Company will not make any excess distributions except to enable the Company to continue to qualify as a REIT under the Code. The Company was in compliance with its debt covenants as of December 31, 2014. | |
Unsecured Revolving Credit Facility Extension 1 [Member] | ||
Line of Credit Facility [Line Items] | ||
Credit facility extension fee, basis points |
0.075%cli_LineOfCreditFacilityBasisPointFacilityFee / us-gaap_CreditFacilityAxis = cli_UnsecuredRevolvingCreditFacilityExtensionOneMember |
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Unsecured Revolving Credit Facility Extension 2 [Member] | ||
Line of Credit Facility [Line Items] | ||
Credit facility extension fee, basis points |
0.075%cli_LineOfCreditFacilityBasisPointFacilityFee / us-gaap_CreditFacilityAxis = cli_UnsecuredRevolvingCreditFacilityExtensionTwoMember |
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Previous Unsecured Revolving Credit Facility [Member] | ||
Line of Credit Facility [Line Items] | ||
Borrowing capacity under the credit facility |
$ 600,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = cli_PreviousUnsecuredRevolvingCreditFacilityMember |
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Credit facility extension fee, basis points |
0.25%cli_LineOfCreditFacilityBasisPointFacilityFee / us-gaap_CreditFacilityAxis = cli_PreviousUnsecuredRevolvingCreditFacilityMember |
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Property Debt, Interest Rate, Spread Over LIBOR |
1.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = cli_PreviousUnsecuredRevolvingCreditFacilityMember |
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Minimum [Member] | Unsecured Revolving Credit Facility [Member] | ||
Line of Credit Facility [Line Items] | ||
Fixed charge coverage ratio |
1.5cli_DebtInstrumentCovenantComplianceFixedChargeCoverage / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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Unencumbered property interest coverage |
2.0cli_DebtInstrumentCovenantComplianceUnencumberedPropertyInterestCoverage / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
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Maximum [Member] | Unsecured Revolving Credit Facility [Member] | ||
Line of Credit Facility [Line Items] | ||
Leverage ratio |
60.00%cli_DebtInstrumentCovenantComplianceLeverageRatio / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Secured indebtedness |
40.00%cli_DebtInstrumentCovenantComplianceSecuredIndebtedness / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Unsecured indebtedness |
60.00%cli_DebtInstrumentCovenantComplianceUnsecuredIndebtedness / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Investment limitations as a percentage of total capitalization |
15.00%cli_DebtInstrumentCovenantComplianceInvestmentLimitationsAsPercentageOfTotalCapitalization / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MaximumMember |
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Debt Instrument Covenant Compliance, Fixed Charge Coverage No definition available.
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Debt Instrument Covenant Compliance, Investment Limitations As Percentage Of Total Capitalization No definition available.
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Debt Instrument Covenant Compliance, Leverage Ratio No definition available.
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Debt Instrument Covenant Compliance, Secured Indebtedness No definition available.
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Debt Instrument Covenant Compliance, Unencumbered Property Interest Coverage No definition available.
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Debt Instrument Covenant Compliance, Unsecured Indebtedness No definition available.
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Debt Instrument, Number Of Extension Options No definition available.
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Line Of Credit Facility Basis Point Facility Fee No definition available.
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Maximum borrowing amount under the line of credit facility competitive bid feature. No definition available.
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Line Of Credit Facility Expandable Maximum Borrowing Capacity No definition available.
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Line Of Credit Facility Extension Period No definition available.
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Line of Credit Facility, Lending Institutions Number No definition available.
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Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
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Description of the conditions for borrowing under the credit facility including the nature of any restrictions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Description of restrictions on the entity's ability to pay dividends as required by the terms of the credit facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Date the credit facility terminates, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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