Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Crude oil and feedstocks	$ 124,877	$ 149,984
Refined products and blendstock	162,576	172,422
Warehouse stock and other (2)	34,612	22,951
Total	322,065	345,357
Reserves for the lower of cost or market value of inventory	3,800	0
Renewable Identification Numbers “RINs” [Member]
Warehouse stock and other (2)	5,000
Titled Inventory
Crude oil and feedstocks	7,000	93,970
Refined products and blendstock	62,401	63,505
Warehouse stock and other (2)	34,612	22,951
Total	104,013	180,426
Supply and Offtake Agreements
Crude oil and feedstocks	117,877	56,014
Refined products and blendstock	100,175	108,917
Warehouse stock and other (2)	0	0
Total	$ 218,052	$ 164,931