NONCONTROLLING INTERESTS - Distributions (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Noncontrolling Interest
Distributions paid by consolidated partnership to noncontrolling interests	$ 69,680	$ 87,623
Affiliate (SGP)
Noncontrolling Interest
Distributions paid by consolidated partnership to noncontrolling interests	38	49
Non-Affiliates (ARLP's non-affiliate limited partners)
Noncontrolling Interest
Distributions paid by consolidated partnership to noncontrolling interests	$ 69,642	$ 87,574