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Additional pre-tax impairment losses related to goodwill resulting from the assumption used in the sensitivity analysis.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Ratio of the net operating income produced by an asset and its capital cost (original prices paid to buy the asset), used as an input to measure fair value.

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IMPAIRMENT LOSS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended			9 Months Ended	3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2014	Feb. 28, 2015	Dec. 31, 2011
Impairment loss
Impairment loss related to goodwill	$ 29,356us-gaap_GoodwillImpairmentLoss	$ 29,869us-gaap_GoodwillImpairmentLoss
Total impairment losses	29,356us-gaap_AssetImpairmentCharges	29,869us-gaap_AssetImpairmentCharges	82,503us-gaap_AssetImpairmentCharges
Income tax effect			(16,501)ctcm_AssetImpairmentChargesTaxEffect
Total effect on consolidated net income	29,356	29,869	66,002
Company's consolidated net book value	417,442	734,116	762,926		417,442		697,208
Market capitalization of the Company	758,562ctcm_MarketCapitalization				758,562ctcm_MarketCapitalization	655,759ctcm_MarketCapitalization
Minimum
Impairment loss
Cost of capital used in impairment analysis (as a percent)	15.70%
Maximum
Impairment loss
Cost of capital used in impairment analysis (as a percent)	18.60%
If 2015 advertising market growth forecast is lower by 10 pp
Sensitivity analysis, additional impairment loss that could be recorded
Total additional impairment losses	(28,735)
Sensitivity analysis, hypothetical changes
Hypothetical decrease in growth forecast	10.00%
If 2015 advertising market growth forecast is lower by 20 pp
Sensitivity analysis, additional impairment loss that could be recorded
Total additional impairment losses	(29,113)
Sensitivity analysis, hypothetical changes
Hypothetical decrease in growth forecast	20.00%
If cost of capital is higher by 3 pp
Sensitivity analysis, additional impairment loss that could be recorded
Total additional impairment losses	(28,686)
Sensitivity analysis, hypothetical changes
Hypothetical increase in cost of capital	3.00%
Broadcasting licenses
Impairment loss
Non-cash impairment losses related to intangible assets			82,503	82,503
Production Unit
Impairment loss
Impairment loss related to goodwill		29,869
Peretz
Impairment loss
Impairment loss related to goodwill	29,356				29,356
Peretz \| If 2015 advertising market growth forecast is lower by 10 pp
Sensitivity analysis, additional impairment loss that could be recorded
Additional impairment losses related to goodwill	(4,158)
Peretz \| If 2015 advertising market growth forecast is lower by 20 pp
Sensitivity analysis, additional impairment loss that could be recorded
Additional impairment losses related to goodwill	(4,158)
Peretz \| If cost of capital is higher by 3 pp
Sensitivity analysis, additional impairment loss that could be recorded
Additional impairment losses related to goodwill	(4,158)
Peretz \| Umbrella licensing \| If 2015 advertising market growth forecast is lower by 10 pp
Sensitivity analysis, additional impairment loss that could be recorded
Additional impairment losses related to broadcasting licenses intangible assets	(9,517)
Peretz \| Umbrella licensing \| If 2015 advertising market growth forecast is lower by 20 pp
Sensitivity analysis, additional impairment loss that could be recorded
Additional impairment losses related to broadcasting licenses intangible assets	(9,822)
Peretz \| Umbrella licensing \| If cost of capital is higher by 3 pp
Sensitivity analysis, additional impairment loss that could be recorded
Additional impairment losses related to broadcasting licenses intangible assets	(9,395)
CTC
Impairment loss
Percentage by which fair value exceeded carrying value of reporting unit	10.00%				10.00%
Domashny
Impairment loss
Percentage by which fair value exceeded carrying value of reporting unit	10.00%				10.00%
Domashny \| If 2015 advertising market growth forecast is lower by 10 pp
Sensitivity analysis, additional impairment loss that could be recorded
Additional impairment losses related to goodwill	(15,060)
Domashny \| If 2015 advertising market growth forecast is lower by 20 pp
Sensitivity analysis, additional impairment loss that could be recorded
Additional impairment losses related to goodwill	(15,133)
Domashny \| If cost of capital is higher by 3 pp
Sensitivity analysis, additional impairment loss that could be recorded
Additional impairment losses related to goodwill	$ (15,133)