XML 109 R88.htm IDEA: XBRL DOCUMENT
v3.20.4

Credit Losses, Financial Assets and Other Instruments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Off-Balance Sheet, Credit Loss, Exposure, Credit Loss Expense (Reversal) Allowance for Credit Loss [Roll Forward] |  |  |
December 31, 2019 | $ 0 |  |
Cumulative effect of change for adoption of credit loss guidance | 1,340 |  |
Credit loss (recoveries) expense | (1,340) |  |
Other changes | 0 |  |
December 31, 2020 | 0 | $ 0 |
Credit Losses, Financial Assets and Other Instruments [Roll Forward] |  |  |
December 31, 2019 | 97 |  |
Cumulative effect of change for adoption of credit loss guidance | 5,541 |  |
Credit loss (recoveries) expense | (933) | 0 | $ 0
Other changes | (8) |  |
December 31, 2020 | 4,697 | 97 |
Other Assets |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
December 31, 2019 | 0 |  |
Cumulative effect of change for adoption of credit loss guidance | 144 |  |
Credit loss (recoveries) expense | 559 |  |
Other changes | (60) |  |
December 31, 2020 | 643 | 0 |
Accounts receivable, allowance for credit loss | 643 | 0 |
Other Assets | Accounts Receivable, Net |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
December 31, 2020 | 257 |  |
Accounts receivable, allowance for credit loss | 257 |  |
Other Assets | Prepaid expenses and other assets, net |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
December 31, 2020 | 386 |  |
Accounts receivable, allowance for credit loss | 386 |  |
Investing Receivables |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
December 31, 2019 | 0 |  |
Cumulative effect of change for adoption of credit loss guidance | 3,732 |  |
Credit loss (recoveries) expense | (881) |  |
Other changes | 0 |  |
December 31, 2020 | 2,851 | 0 |
Tenant Notes Receivables |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
December 31, 2019 | 97 |  |
Cumulative effect of change for adoption of credit loss guidance | 325 |  |
Credit loss (recoveries) expense | 729 |  |
Other changes | 52 |  |
December 31, 2020 | $ 1,203 | $ 97 |

X
- Definition Accounts Receivable, Allowance for Credit Loss, Other Changes + References No definition available. + Details
Name: | ofc_AccountsReceivableAllowanceForCreditLossOtherChanges
Namespace Prefix: | ofc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Accounts Receivable, Allowance for Credit Loss, Cumulative Effect of Change for Adoption of Credit Loss Guidance + References No definition available. + Details
Name: | ofc_AccountsReceivableAllowanceforCreditLossCumulativeEffectofChangeforAdoptionofCreditLossGuidance
Namespace Prefix: | ofc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Credit Losses, Financial Assets and Other Instruments, Allowance for Credit Loss, Other Changes + References No definition available. + Details
Name: | ofc_CreditLossesFinancialAssetsAndOtherInstrumentsAllowanceForCreditLossOtherChanges
Namespace Prefix: | ofc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Credit Losses, Financial Assets and Other Instruments + References No definition available. + Details
Name: | ofc_CreditLossesFinancialAssetsAndOtherInstrumentsRollForward
Namespace Prefix: | ofc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Credit Losses, Financial Assets and Other Instruments, Allowance for Credit Loss + References No definition available. + Details
Name: | ofc_CreditLossesFinancialAssetsandOtherInstrumentsAllowanceforCreditLoss
Namespace Prefix: | ofc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Credit Losses, Financial Assets and Other Instruments, Allowance for Credit Loss, Cumulative Effect of Change for Adoption of Credit Loss Guidance + References No definition available. + Details
Name: | ofc_CreditLossesFinancialAssetsandOtherInstrumentsAllowanceforCreditLossCumulativeEffectofChangeforAdoptionofCreditLossGuidance
Namespace Prefix: | ofc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Credit Losses, Financial Assets and Other Instruments, Allowance for Credit Loss, Expense (Reversal) + References No definition available. + Details
Name: | ofc_CreditLossesFinancialAssetsandOtherInstrumentsAllowanceforCreditLossExpenseReversal
Namespace Prefix: | ofc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Financing Receivable, Allowance for Credit Loss, Other Changes + References No definition available. + Details
Name: | ofc_FinancingReceivableAllowanceForCreditLossOtherChanges
Namespace Prefix: | ofc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Financing Receivable, Allowance for Credit Loss, Cumulative Effect of Change for Adoption of Credit Loss Guidance + References No definition available. + Details
Name: | ofc_FinancingReceivableAllowanceforCreditLossCumulativeEffectofChangeforAdoptionofCreditLossGuidance
Namespace Prefix: | ofc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Off-Balance Sheet, Credit Loss, asset or liability exposure, Allowance for Credit Loss + References No definition available. + Details
Name: | ofc_OffBalanceSheetCreditLossExposureAllowanceforCreditLoss
Namespace Prefix: | ofc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Off-Balance Sheet, Credit Loss, asset or liability exposure, Allowance for Credit Loss, Cumulative Effect of Change for Adoption of Credit Loss Guidance + References No definition available. + Details
Name: | ofc_OffBalanceSheetCreditLossExposureAllowanceforCreditLossCumulativeEffectofChangeforAdoptionofCreditLossGuidance
Namespace Prefix: | ofc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Off-Balance Sheet, Credit Loss, asset or liability exposure, Credit Loss Expense (Reversal) + References No definition available. + Details
Name: | ofc_OffBalanceSheetCreditLossExposureCreditLossExpenseReversal
Namespace Prefix: | ofc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Off-Balance Sheet, Credit Loss, Exposure, Credit Loss Expense (Reversal) Allowance for Credit Loss + References No definition available. + Details
Name: | ofc_OffBalanceSheetCreditLossExposureCreditLossExpenseReversalAllowanceForCreditLossRollForward
Namespace Prefix: | ofc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Off-Balance Sheet, Credit Loss, Exposure, Other Changes + References No definition available. + Details
Name: | ofc_OffBalanceSheetCreditLossExposureOtherChanges
Namespace Prefix: | ofc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 + Details
Name: | us-gaap_AllowanceForDoubtfulAccountsReceivable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(5)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
Name: | us-gaap_ProvisionForDoubtfulAccounts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of credit loss expense (reversal of expense) for financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(11)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
Name: | us-gaap_ProvisionForLoanLossesExpensed
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_OtherAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=ofc_AccountsReceivableNetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=ofc_PrepaidExpensesandOtherAssetsNetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ofc_InvestingReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ofc_TenantNotesReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |