Fee as percent of original principal amount of debt in case the debt is paid before due date.

No definition available.

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- Definition

Represents the amount of accrued interest and unused commitment fee payable as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Increased maximum borrowing capacity under the credit facility if any one or more of the existing banks or new banks agree to provide such increased commitment amount.

+ References

No definition available.

+ Details

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Namespace Prefix:	cmct_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the period that the credit facility may be extended under certain circumstances.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the period within which the entity can draw on the term facility.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
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- Definition

The commitment fee one, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility that is dependent upon amount of aggregate unused commitments.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

The commitment fee two, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility that is dependent upon amount of aggregate unused commitments.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Number of extensions of a contract.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the remainder of the fiscal year following the latest fiscal year ended.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

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

- Details

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DEBT (Detail 2) (USD $)	1 Months Ended			0 Months Ended	1 Months Ended
DEBT (Detail 2) (USD $)	Aug. 31, 2013	Feb. 29, 2012	Sep. 30, 2014 item	May 11, 2015	May 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Debt
Accrued interest and unused commitment fee payable						$ 999,000	$ 967,000
Principal payments on, and estimated amortization of debt
2015 (Nine Months Ending December 31, 2015)						75,348,000
2016						399,354,000
2017						4,642,000
2018						24,300,000
2019						1,519,000
Thereafter						137,047,000
Total Debt						642,210,000us-gaap_DebtInstrumentCarryingAmount
Unsecured revolving line of credit entered into February 2012 \| CIM Urban Partners, L.P
Debt
Maximum borrowing capacity		100,000,000
Unused commitment fee dependent upon amount of aggregate unused commitments, one (as a percent)	0.25%
Unused commitment fee dependent upon amount of aggregate unused commitments, two (as a percent)	0.35%
Unsecured revolving line of credit entered into February 2012 \| LIBOR \| CIM Urban Partners, L.P \| Minimum
Debt
Interest rate margin (as a percent)	1.25%	1.75%
Unsecured revolving line of credit entered into February 2012 \| LIBOR \| CIM Urban Partners, L.P \| Maximum
Debt
Interest rate margin (as a percent)	1.85%	2.50%
Unsecured revolving line of credit entered into August 2013 \| CIM Urban Partners, L.P
Debt
Unused commitment fee dependent upon amount of aggregate unused commitments, one (as a percent)	0.25%
Unused commitment fee dependent upon amount of aggregate unused commitments, two (as a percent)	0.35%
Unsecured revolving line of credit entered into August 2013 \| CIM Urban Partners, L.P \| Subsequent event
Debt
Maximum borrowing capacity	200,000,000
Unsecured revolving line of credit entered into August 2013 \| LIBOR \| CIM Urban Partners, L.P \| Minimum
Debt
Interest rate margin (as a percent)	1.25%
Unsecured revolving line of credit entered into August 2013 \| LIBOR \| CIM Urban Partners, L.P \| Maximum
Debt
Interest rate margin (as a percent)	1.85%
Mortgages Payable
Principal payments on, and estimated amortization of debt
2015 (Nine Months Ending December 31, 2015)						75,348,000
2016						4,354,000
2017						4,642,000
2018						24,300,000
2019						1,519,000
Thereafter						109,977,000
Total Debt						220,140,000	221,847,000
Other debt
Principal payments on, and estimated amortization of debt
2016						395,000,000
Thereafter						27,070,000
Total Debt						422,070,000	387,070,000
Unsecured credit facility entered into in September 2014
Debt
Maximum borrowing capacity			850,000,000
Amount available for future borrowings						455,000,000	490,000,000
Amount outstanding under the facility						395,000,000	360,000,000
Period of extension option			1 year
Upsized borrowing capacity			1,150,000,000
Number of extension			2
Unsecured credit facility entered into in September 2014 \| Minimum
Debt
Interest rate (as a percent)						1.32%	1.31%
Unsecured credit facility entered into in September 2014 \| Maximum
Debt
Interest rate (as a percent)						1.38%	1.37%
Unsecured credit facility entered into in September 2014, revolver
Debt
Maximum borrowing capacity			450,000,000
Unused commitment fee dependent upon amount of aggregate unused commitments, one (as a percent)			0.15%
Unused commitment fee dependent upon amount of aggregate unused commitments, two (as a percent)			0.25%
Principal payments on, and estimated amortization of debt
Unused line fee (as a percent)			0.25%
Unsecured credit facility entered into in September 2014, revolver \| Base rate \| Minimum
Debt
Interest rate margin (as a percent)			0.20%
Unsecured credit facility entered into in September 2014, revolver \| Base rate \| Maximum
Debt
Interest rate margin (as a percent)			1.00%
Unsecured credit facility entered into in September 2014, revolver \| LIBOR \| Minimum
Debt
Interest rate margin (as a percent)			1.20%
Unsecured credit facility entered into in September 2014, revolver \| LIBOR \| Maximum
Debt
Interest rate margin (as a percent)			2.00%
Unsecured credit facility entered into in September 2014, term loan
Debt
Maximum borrowing capacity			325,000,000
Unsecured credit facility entered into in September 2014, term loan \| Base rate \| Minimum
Debt
Interest rate margin (as a percent)			0.15%
Unsecured credit facility entered into in September 2014, term loan \| Base rate \| Maximum
Debt
Interest rate margin (as a percent)			0.95%
Unsecured credit facility entered into in September 2014, term loan \| LIBOR \| Minimum
Debt
Interest rate margin (as a percent)			1.15%
Unsecured credit facility entered into in September 2014, term loan \| LIBOR \| Maximum
Debt
Interest rate margin (as a percent)			1.95%
Unsecured credit facility entered into in September 2014, delayed-draw term loan
Debt
Maximum borrowing capacity			75,000,000
Unsecured term facility entered into in May 2015
Debt
Maximum borrowing capacity				385,000,000
Amount outstanding under the facility				0
Unused commitment fee dependent upon amount of aggregate unused commitments, one (as a percent)				0.20%
Prepayment fee				2.00%
Period to draw on the term facility					6 months
Unsecured term facility entered into in May 2015 \| Base rate \| Minimum
Debt
Interest rate margin (as a percent)				0.60%
Unsecured term facility entered into in May 2015 \| Base rate \| Maximum
Debt
Interest rate margin (as a percent)				1.25%
Unsecured term facility entered into in May 2015 \| LIBOR \| Minimum
Debt
Interest rate margin (as a percent)				1.60%
Unsecured term facility entered into in May 2015 \| LIBOR \| Maximum
Debt
Interest rate margin (as a percent)				2.25%
Unsecured credit facilities
Debt
Pay-off of unsecured revolving line and term note			323,000,000
Principal payments on, and estimated amortization of debt
Total Debt						$ 395,000,000	$ 360,000,000