EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income from operations		$ 31,102	$ 44,078	$ 40,072	$ 55,829
Net loss / (income) attributable to noncontrolling interests		77	(119)	148	(112)
Less: income allocated to Series B Preferred Shares		9,197	13,003	11,873	16,490
Net income attributable to CME Ltd. available to common shareholders — basic		21,982	30,956	28,347	39,227
Net income attributable to CME Ltd. available to common shareholders — diluted		$ 22,009	$ 31,003	$ 28,392	$ 39,281
Weighted average outstanding shares of common stock - basic (in shares)	[1]	265,649,000	264,570,000	265,342,000	264,385,000
Dilutive effect of common stock warrants, employee stock options and RSUs (in shares)		1,127,000	1,362,000	1,448,000	1,243,000
Weighted average outstanding shares of common stock - diluted (in shares)		266,776,000	265,932,000	266,790,000	265,628,000
Net income per share:
Attributable to CME Ltd. — basic		$ 0.08	$ 0.12	$ 0.11	$ 0.15
Attributable to CME Ltd. — diluted		$ 0.08	$ 0.12	$ 0.11	$ 0.15
Series B Preferred Shares
Dilutive effect of RSUs and employee stock options		$ (27)	$ (47)	$ (45)	$ (54)
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	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.