ACCRUED EXPENSES (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Accrued Expenses:
Inventory-related accruals	$ 764,093	$ 548,800
Inventory supply and intermediation arrangements	248,345	252,380
Accrued transportation costs	78,236	91,546
Renewable energy credit obligations	42,753	19,472
Excise and sales tax payable	47,577	34,129
Customer deposits	19,654	20,395
Accrued utilities	20,546	25,192
Accrued interest	30,701	22,313
Accrued salaries and benefits	15,604	61,011
Accrued construction in progress	7,200	7,400
Other	29,062	34,797
Total accrued expenses	$ 1,303,771	$ 1,117,435