ACCRUED EXPENSES (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accrued Expenses:
Inventory-related accruals	$ 583,287	$ 548,800
Inventory supply and intermediation arrangements	274,668	252,380
Accrued transportation costs	87,972	91,546
Renewable energy credit obligations	45,729	19,472
Excise and sales tax payable	41,110	34,129
Customer deposits	26,656	20,395
Accrued utilities	24,780	25,192
Accrued interest	23,143	22,313
Accrued salaries and benefits	12,290	61,011
Accrued construction in progress	6,709	7,400
Other	44,050	34,797
Total accrued expenses	$ 1,170,394	$ 1,117,435