Amount of consideration receivable on sale of disposal group which is held back.

No definition available.

Name:	ctcm_DisposalGroupConsiderationHeldBack
Namespace Prefix:	ctcm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the percentage of interest held that was sold in a disposal transaction.

+ References

No definition available.

+ Details

Name:	ctcm_DisposalGroupIncludingDiscontinuedOperationPercentageOfVotingInterestsSold
Namespace Prefix:	ctcm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

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

- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

+ Details

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

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=ctcm_CTCInvestmentsLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CounterpartyNameAxis=ctcm_UTHRussiaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands			12 Months Ended
SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands	Feb. 12, 2016	Dec. 23, 2015	Dec. 31, 2015
SUBSEQUENT EVENTS
Cash consideration received			$ 98,868
CTC Investments
SUBSEQUENT EVENTS
Sale consideration received		$ 193,057
CTC Investments \| UTH
SUBSEQUENT EVENTS
Percentage interest sold		75.00%	75.00%
Cash consideration received		$ 150,500
Consideration held back		$ 50,000
CTC Investments \| UTH \| Subsequent Event
SUBSEQUENT EVENTS
Cash consideration received	$ 42,500
Sale consideration received	$ 193,100