Represents amount of paid and unpaid dividends declared per common stock as converted.

No definition available.

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- Definition

Represents the dividends per share paid to the stockholders of an acquired entity on pro rata basis.

+ References

No definition available.

+ Details

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Namespace Prefix:	cmct_
Data Type:	num:perShareItemType
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- Details

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Data Type:	xbrli:stringItemType
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- Definition

The cash outflow in the form of dividends assumed related the acquisition of business during the period.

+ References

No definition available.

+ Details

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

- Definition

Represents the payment in cash - special dividend per share.

+ References

No definition available.

+ Details

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Data Type:	num:perShareItemType
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Period Type:	duration

- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

+ Details

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

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

+ Details

Name:	us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
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- Definition

Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 405

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817

+ Details

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

- Definition

Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (a)

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

+ Details

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

- Definition

Aggregate dividends declared during the period for each share of preferred stock outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_PreferredStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_BusinessAcquisitionAxis=cmct_PMCCommercialTrustMember
Namespace Prefix:
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DIVIDENDS DECLARED (Details) (USD $)	0 Months Ended						12 Months Ended			0 Months Ended
DIVIDENDS DECLARED (Details) (USD $)	Mar. 06, 2015	Dec. 09, 2014	Sep. 12, 2014	Jun. 12, 2014	Apr. 28, 2014	Mar. 24, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 10, 2014
Dividend declared
Common stock as converted dividend declared (in dollars per share)					$ 0.0215	$ 0.0285
Dividend paid							$ 16,100,000us-gaap_PaymentsOfDividendsCommonStock	$ 104,035,000us-gaap_PaymentsOfDividendsCommonStock	$ 72,987,000us-gaap_PaymentsOfDividendsCommonStock
Dividend paid							59,286,000
Common stock dividend declared (in dollars per share)	$ 0.21875	$ 0.21875	$ 0.21875	$ 0.21875		$ 0.05	$ 0.70625
Preferred dividend declared (in dollars per share)					$ 0.0302	$ 0.0403	$ 0.0705
Aggregate amount of dividend declared to preferred shareholders					1,964,000us-gaap_DividendsPreferredStock		4,585,000us-gaap_DividendsPreferredStock
CIM Urban Partners, L.P
Dividend declared
Common stock as converted dividend declared (in dollars per share)							$ 0.1685
Dividend paid							16,100,000
PMC Commercial \| CIM Urban Partners, L.P
Dividend declared
Dividend paid										$ 59,286,000
Dividend paid per common stock (in dollars per share)										$ 27.975
Payment in cash - special dividend (in dollars per share)										$ 27.50
Pro rata portion of regular quarterly cash dividend (in dollars per share)										$ 0.475