Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net loss	$ (103,312)	$ (11,800)	$ (141,188)	$ (63,628)
Other comprehensive loss, net of income tax:
Change in fair value of derivative instruments, net of income tax of $0, ($79), $0 and $2, respectively	0	(153)	0	3
Reclassification of gain on settled contracts, net of income taxes of $(1,418), ($1,357), $(3,227) and ($2,868), respectively	(2,753)	(2,634)	(6,265)	(5,568)
Comprehensive loss	(106,065)	(14,587)	(147,453)	(69,193)
Comprehensive income attributable to the noncontrolling interest	982	1,746	1,870	3,158
Comprehensive loss attributable to GMX shareholders	$ (107,047)	$ (16,333)	$ (149,323)	$ (72,351)