ACCRUED EXPENSES (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Accrued Expenses:
Inventory-related accruals	$ 548,800	$ 588,297
Inventory supply and intermediation arrangements	252,380	253,549
Accrued transportation costs	91,546	59,959
Accrued salaries and benefits	61,011	55,993
Excise and sales tax payable	34,129	40,444
Accrued construction in progress	7,400	31,452
Customer deposits	20,395	24,659
Accrued interest	22,313	22,946
Accrued utilities	25,192	22,337
Renewable energy credit obligations	19,472	286
Other	34,797	30,048
Accrued expenses	$ 1,117,435	$ 1,129,970