Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Crude oil and feedstocks	$ 61,302	$ 86,530
Refined products and blendstock	116,593	115,631
Warehouse stock and other	20,431	17,276
Total	198,326	219,437
Reserves for the lower of cost or market value of inventory	200	23,700
Titled Inventory
Crude oil and feedstocks	11,620	18,404
Refined products and blendstock	38,916	28,023
Warehouse stock and other	20,431	17,276
Total	70,967	63,703
Supply and Offtake Agreements
Crude oil and feedstocks	49,682	68,126
Refined products and blendstock	77,677	87,608
Warehouse stock and other	0	0
Total	$ 127,359	$ 155,734