Proposed Eldorado Transaction (Details) (MTR, Eldorado, Subsequent Event, USD $) In Millions, except Per Share data, unless otherwise specified	0 Months Ended
	Sep. 09, 2013
MTR | Eldorado | Subsequent Event
Subsequent Event [Line Items]
Share Price	$ 5.15
Maximum number of MTR shares whose holders are to be offered $5.15 per share in relation to the merger	5.8
LTM EBITDA multiple to be used to determine Eldorado's valuable in the merger	6.81
Number of new shares in New Eldorado to be received by current Eldorado shareholders in the merger	35.6
Percentage of the new shares in New Eldorado to be received by current Eldorado shareholders	55.00%
Lower end of estimate range for the Company's ownership in New Eldorado post merger	9.00%
Higher end of estimate range for the Company's ownership in New Eldorado post merger	10.00%