Accounting Policies and Basis of Presentation - Inventory (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Accounting Policies [Abstract]
Finished goods	$ 15,674	$ 10,039
Barreled distillate	21,063	11,114
Work in process	1,910	2,023
Raw materials	6,412	5,440
Maintenance materials	5,305	4,913
Other	1,844	912
Total	$ 52,208	$ 34,441