|
Debt (Details 2) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2015
|
Dec. 31, 2014
|
|---|---|---|
| Carrying amount and estimated fair value of debt | ||
| Carrying Value | $ 1,999,622us-gaap_LongTermDebt | $ 1,920,057us-gaap_LongTermDebt |
| 4.25% Exchangeable Senior Notes | ||
| Carrying amount and estimated fair value of debt | ||
| Carrying Value |
575us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = ofc_Exchangeable425PercentSeniorNotesMember |
572us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = ofc_Exchangeable425PercentSeniorNotesMember |
| Carrying Amount | ||
| Carrying amount and estimated fair value of debt | ||
| Variable-rate debt |
720,668us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember |
639,877us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember |
| Carrying Value |
1,999,622us-gaap_LongTermDebt / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember |
1,920,057us-gaap_LongTermDebt / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember |
| Carrying Amount | Unsecured senior notes | ||
| Carrying amount and estimated fair value of debt | ||
| Fixed-rate debt |
891,103us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = us-gaap_SeniorNotesMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember |
890,862us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = us-gaap_SeniorNotesMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember |
| Carrying Amount | 4.25% Exchangeable Senior Notes | ||
| Carrying amount and estimated fair value of debt | ||
| Fixed-rate debt |
575us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = ofc_Exchangeable425PercentSeniorNotesMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember |
572us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = ofc_Exchangeable425PercentSeniorNotesMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember |
| Carrying Amount | Other fixed-rate debt | ||
| Carrying amount and estimated fair value of debt | ||
| Fixed-rate debt |
387,276us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = ofc_OtherFixedRateDebtMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember |
388,746us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = ofc_OtherFixedRateDebtMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_CarryingReportedAmountFairValueDisclosureMember |
| Total Estimated Fair Value | ||
| Carrying amount and estimated fair value of debt | ||
| Variable-rate debt |
722,752us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
642,091us-gaap_LongtermDebtPercentageBearingVariableInterestAmount / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
| Carrying Value |
1,992,236us-gaap_LongTermDebt / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
1,900,067us-gaap_LongTermDebt / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
| Total Estimated Fair Value | Unsecured senior notes | ||
| Carrying amount and estimated fair value of debt | ||
| Fixed-rate debt |
918,074us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = us-gaap_SeniorNotesMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
901,599us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = us-gaap_SeniorNotesMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
| Total Estimated Fair Value | 4.25% Exchangeable Senior Notes | ||
| Carrying amount and estimated fair value of debt | ||
| Fixed-rate debt |
575us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = ofc_Exchangeable425PercentSeniorNotesMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
575us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = ofc_Exchangeable425PercentSeniorNotesMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
| Total Estimated Fair Value | Other fixed-rate debt | ||
| Carrying amount and estimated fair value of debt | ||
| Fixed-rate debt |
$ 350,835us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = ofc_OtherFixedRateDebtMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
$ 355,802us-gaap_LongtermDebtPercentageBearingFixedInterestAmount / us-gaap_DebtInstrumentAxis = ofc_OtherFixedRateDebtMember / us-gaap_FairValueByMeasurementBasisAxis = us-gaap_EstimateOfFairValueFairValueDisclosureMember |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate. No definition available.
|
| X | ||||||||||
|
- Definition
The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|