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Equity (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Summary of changes in the components of equity
Balance, December 31, 2013			$ 116,340
Dividends on preferred stock			(611)
Exercise of stock options			27
Stock-based compensation			3,344
Comprehensive loss:
Net loss	(5,007)	(6,168)	(12,156)	(6,265)
Foreign currency translation adjustments	103	23	73	145
Comprehensive loss	(4,904)	(6,155)	(12,083)	(6,164)
Balance, June 30, 2014	107,017		107,017
Attributable to Genie [Member]
Summary of changes in the components of equity
Balance, December 31, 2013			121,132
Dividends on preferred stock			(611)
Exercise of stock options			27
Stock-based compensation			3,344
Comprehensive loss:
Net loss			(11,657)
Foreign currency translation adjustments			77
Comprehensive loss			(11,580)
Balance, June 30, 2014	112,312		112,312
Noncontrolling Interests [Member]
Summary of changes in the components of equity
Balance, December 31, 2013			(4,792)
Dividends on preferred stock
Exercise of stock options
Stock-based compensation
Comprehensive loss:
Net loss			(499)
Foreign currency translation adjustments			(4)
Comprehensive loss			(503)
Balance, June 30, 2014	$ (5,295)		$ (5,295)

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