CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
NET INCOME		$ 94,257	$ 137,058	$ 200,191	$ 252,394
OTHER COMPREHENSIVE INCOME /(LOSS):
Total recognized in accumulated other comprehensive income/(loss)		723	(101)	1,452	(139)
COMPREHENSIVE INCOME		94,980	136,957	201,643	252,255
Less: Comprehensive income attributable to noncontrolling interests		(33,694)	(59,653)	(74,513)	(107,513)
COMPREHENSIVE INCOME ATTRIBUTABLE TO AHGP		61,286	77,304	127,130	144,742
Pension Plan
OTHER COMPREHENSIVE INCOME /(LOSS):
Amortization of net actuarial (gain) loss	[1]	835	162	1,677	387
Total recognized in accumulated other comprehensive income/(loss)		835	162	1,677	387
Pneumoconiosis benefits
OTHER COMPREHENSIVE INCOME /(LOSS):
Amortization of net actuarial (gain) loss	[1]	(112)	(263)	(225)	(526)
Total recognized in accumulated other comprehensive income/(loss)		$ (112)	$ (263)	$ (225)	$ (526)

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