Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Inventories
Inventories	$ 402,872	$ 388,952
Positive exchange balances on inventory exchange agreements accounted for as accounts receivable	9,300	3,400
Negative exchange balances on inventory exchange agreements accounted for as accounts payable	4,100	12,100
Distillates: home heating oil, diesel and kerosene
Inventories
Inventories	143,206	156,411
Gasoline
Inventories
Inventories	63,468	62,467
Gasoline blendstocks
Inventories
Inventories	41,897	32,542
Crude Oil
Inventories
Inventories	116,366	102,253
Residual Oil
Inventories
Inventories	17,236	12,895
Propane and other
Inventories
Inventories	1,639	1,469
Renewable identification numbers (RINs)
Inventories
Inventories	664	803
Convenience store inventory
Inventories
Inventories	$ 18,396	$ 20,112