XML 63 R46.htm IDEA: XBRL DOCUMENT v3.8.0.1

Revenue Recognition on Construction Contract and Other Service Revenues (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Construction contract and other service revenues	$ 27,198	$ 13,034
Construction
Disaggregation of Revenue [Line Items]
Construction contract and other service revenues	25,915	10,091
Design
Disaggregation of Revenue [Line Items]
Construction contract and other service revenues	1,064	2,713
Other
Disaggregation of Revenue [Line Items]
Construction contract and other service revenues	219	230
GMP
Disaggregation of Revenue [Line Items]
Construction contract and other service revenues	20,486	6,589
FFP
Disaggregation of Revenue [Line Items]
Construction contract and other service revenues	6,435	6,198
Cost-plus fee
Disaggregation of Revenue [Line Items]
Construction contract and other service revenues	58	17
Other
Disaggregation of Revenue [Line Items]
Construction contract and other service revenues	$ 219	$ 230

X

- Definition

Amount of revenue earned from products sold or services provided under the terms of a contract, including, but not limited to, government contracts and construction contracts, classified as other.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_ContractsRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ProductOrServiceAxis=ofc_ConstructionServiceRevenueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=ofc_DesignServiceRevenueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=ofc_OtherServicesRevenueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ContractWithCustomerBasisOfPricingAxis=ofc_GuaranteedMaximumPriceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ContractWithCustomerBasisOfPricingAxis=us-gaap_FixedPriceContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ContractWithCustomerBasisOfPricingAxis=ofc_CostplusFeeContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ContractWithCustomerBasisOfPricingAxis=ofc_OtherServicesRevenueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: