Stock Compensation Stock compensation - Schedule of Incentive Plan Activity (Details) (EXCO/HGI JV [Member], EXCO/HGI JV Incentive Plan [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Jun. 30, 2013	Sep. 30, 2012
EXCO/HGI JV [Member] | EXCO/HGI JV Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	102	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 10.00	$ 0.00
Granted	102
Granted	$ 10.00