CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net income		$ 81,632	$ 94,257	$ 128,521	$ 200,191
OTHER COMPREHENSIVE INCOME/(LOSS):
Total recognized in accumulated other comprehensive income/(loss)		128	723	256	1,452
COMPREHENSIVE INCOME		81,760	94,980	128,777	201,643
Less: Comprehensive income attributable to noncontrolling interests		(36,332)	(33,694)	(52,417)	(74,513)
COMPREHENSIVE INCOME ATTRIBUTABLE TO AHGP		45,428	61,286	76,360	127,130
Pension Plan
OTHER COMPREHENSIVE INCOME/(LOSS):
Amortization of net actuarial loss (gain)	[1]	789	835	1,578	1,677
Total recognized in accumulated other comprehensive income/(loss)		789	835	1,578	1,677
Pneumoconiosis benefits
OTHER COMPREHENSIVE INCOME/(LOSS):
Amortization of net actuarial loss (gain)	[1]	(661)	(112)	(1,322)	(225)
Total recognized in accumulated other comprehensive income/(loss)		$ (661)	$ (112)	$ (1,322)	$ (225)

[1] Amortization of net actuarial gain or loss is included in the computation of net periodic benefit cost (see Notes 10 and 12 for additional details).