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Accounting Policies and Basis of Presentation (Detail) - Inventory (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Accounting Policies [Abstract]    
Finished goods $ 9,707 $ 11,355
Barreled distillate 9,834 10,310
Work in process 2,672 2,737
Raw materials 3,593 5,183
Maintenance materials 5,012 4,766
Other 647 566
Total $ 31,465 $ 34,917