Write off amount of insurance settlement receivable included in other assets.

No definition available.

Name:	ccg_WriteOffOfInsuranceSettlementReceivable
Namespace Prefix:	ccg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy.

+ References

No definition available.

+ Details

Name:	us-gaap_InsuranceSettlementsReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfRealEstateProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from the amounts received by the insured under the terms of an insurance contract settlement. This element pertains only to insurance proceeds related to investments, for example fixed assets. It excludes insurance settlements classified as operating cash flows.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromInsuranceSettlementInvestingActivities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=ccg_GroveAtPullmanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Student Housing Properties (Details Textual) $ in Thousands	1 Months Ended	6 Months Ended
Student Housing Properties (Details Textual) $ in Thousands	Jul. 31, 2013 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jul. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Proceeds from Insurance Settlement, Investing Activities	$ 2,500	$ 474	$ 590
Number of Real Estate Properties		30
Insurance Settlements Receivable		$ 6,700			$ 5,500
Write Off of Insurance Settlement Receivable	300
Scenario, Forecast [Member]
Insurance Settlements Receivable				$ 4,300
Grove At Pullman [Member]
Insurance Settlements Receivable	$ 6,800