EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Net loss attributable to noncontrolling interests		$ 71	$ 7
Less: income allocated to Series B Preferred Shares		2,671	3,482
Net income attributable to CME Ltd. available to common shareholders — basic		6,370	8,276
Net income attributable to CME Ltd. available to common shareholders — diluted		$ 6,382	$ 8,285
Weighted average outstanding shares of common stock - basic (in shares)	[1]	265,036,000	264,199,000
Dilutive effect of common stock warrants, employee stock options and RSUs (in shares)		1,755,000	1,012,000
Weighted average outstanding shares of common stock - diluted (in shares)		266,791,000	265,211,000
Net income per share:
Attributable to CME Ltd. — basic		$ 0.02	$ 0.03
Attributable to CME Ltd. — diluted		$ 0.02	$ 0.03
Series B Preferred Shares
Dilutive effect of RSUs and employee stock options		$ (12)	$ (9)
Common Class A [Member] | T W Investor [Member]
Net income per share:
Incremental common shares attributable to dilutive effect of conversion of preferred stock (in shares)		11,211,449	11,211,449

[1] ⁽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, because the rights of the Series A Preferred Share are considered substantially similar to that of our Class A common stock.