Equity Method Investments (Detail) - Condensed Financial Information of the Company's Non-Consolidated Equity Method Investment in ICP (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
ICP’s Operating results:
Net sales	$ 52,580	[1]	$ 47,813	[1]	$ 146,807	[1]	$ 164,804	[1]
Cost of sales and expenses	148		45		(900)		2,075
Net income (loss)	$ (585)		$ (448)		$ (3,472)		$ 311

[1] Includes related party sales to MGPI of $110 and $9,697 for the quarters ended September 30, 2013 and 2012, respectively, and $3,510 and $40,331 for the year to date periods ended September 30, 2013 and 2012, respectively.