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SUBSEQUENT EVENTS (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended 2 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Mar. 01, 2015
Mar. 04, 2015
SUBSEQUENT EVENTS        
Dividend Payable Amount $ 27,684us-gaap_DividendsPayableCurrentAndNoncurrent      
Percentage of Appreciation (Depreciation) of Functional Currency, Against Reporting Currency (42.00%)ctcm_PercentageOfAppreciationDepreciationOfFunctionalCurrencyAgainstReportingCurrency (7.00%)ctcm_PercentageOfAppreciationDepreciationOfFunctionalCurrencyAgainstReportingCurrency    
Subsequent Event | Ruble-denominated deposits        
SUBSEQUENT EVENTS        
Percentage of Appreciation (Depreciation) of Functional Currency, Against Reporting Currency     8.00%ctcm_PercentageOfAppreciationDepreciationOfFunctionalCurrencyAgainstReportingCurrency
/ us-gaap_CurrencyAxis
= currency_RUB
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
 
Subsequent Event | Dividend declared        
SUBSEQUENT EVENTS        
Dividend declared (in dollars per share)       $ 0.175us-gaap_DividendsPayableAmountPerShare
/ us-gaap_DividendsAxis
= us-gaap_DividendDeclaredMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Dividend Payable Amount       $ 27,300us-gaap_DividendsPayableCurrentAndNoncurrent
/ us-gaap_DividendsAxis
= us-gaap_DividendDeclaredMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember