EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended				6 Months Ended				12 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013		Dec. 31, 2012
Net (loss) / income attributable to CME Ltd.	$ (52,438)		$ (40,962)		$ (100,353)		$ (149,238)
Preferred dividend paid in-kind	3,959		247		7,803		247
Net Income (Loss) Available to Common Stockholders, Basic	(56,397)		(41,209)		(108,156)		(149,485)
Net loss attributable to CME Ltd. – Diluted	$ (52,438)		$ (40,962)		$ (100,353)		$ (149,238)
Weighted average outstanding shares of common stock - basic (in shares)	146,455,000	[1]	122,115,000	[1]	146,410,000	[1]	105,349,000	[1]
Dilutive effect of employee stock options and RSUs (in shares)	0		0		0		0
Weighted average outstanding shares of common stock - diluted (in shares)	146,455,000		122,115,000		146,410,000		105,349,000
Net loss per share:
Basic (in dollars per share)	$ (0.36)		$ (0.34)		$ (0.69)		$ (1.42)
Diluted (in dollars per share)	$ (0.36)		$ (0.34)		$ (0.69)		$ (1.42)
Antidilutive securities excluded from computation of earnings per share					1,396,160				1,425,477
Common Class A [Member] | T W Investor [Member]
Net loss per share:
Convertible preferred stock, shares issued upon conversion	11,211,449				11,211,449

[1] For the purpose of computing basic earnings per share, the 11,211,449 shares of Class A common stock underlying the Series A Preferred Share are included in the weighted average outstanding shares of common stock - basic, primarily because the holder of the Series A Preferred Share is entitled to receive any dividends payable when dividends are declared by the Board of Directors with respect to any shares of common stock.