Equity Method Investments (Detail) - USD ($)			3 Months Ended		9 Months Ended		12 Months Ended
		Apr. 09, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Mar. 31, 2014	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Wind down period					1 year
Change in translation adjustment on non-consolidated foreign subsidiary, net of tax	[1]				$ 45,000
Equity method investments			$ 18,427,000		18,427,000			$ 12,373,000
Equity in earnings (loss) of joint ventures			$ 1,562,000	$ 1,621,000	6,010,000	$ 7,287,000
Insurance proceeds					$ 4,112,000
DMI [Member]
Schedule of Equity Method Investments [Line Items]
Equity method ownership percentage (percent)			50.00%		50.00%
Equity method investments			$ 384,000		$ 384,000			449,000
Equity in earnings (loss) of joint ventures			$ 0	17,000	$ (110,000)	95,000
ICP [Member]
Schedule of Equity Method Investments [Line Items]
Equity method ownership percentage (percent)			30.00%		30.00%
Decrease in related equity method investment earnings due to reassessment						$ 1,882,000	$ 1,882,000
Decrease in earnings per share due to change in estimate (in dollars per share)						$ 0.10
Equity method investments			$ 18,043,000		$ 18,043,000			$ 11,924,000
Equity in earnings (loss) of joint ventures			1,562,000	1,604,000	6,120,000	$ 7,192,000
Related party sales to MGPI			8,680,000	9,287,000	27,195,000	23,905,000
Depreciation and amortization			$ 662,000	$ 738,000	1,987,000	$ 2,100,000
Insurance proceeds					1,230,000
Accumulated Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Schedule of Equity Method Investments [Line Items]
Equity in earnings (loss) of joint ventures					(81,000)
Accumulated Other Comprehensive Loss [Member]
Schedule of Equity Method Investments [Line Items]
Change in translation adjustment on non-consolidated foreign subsidiary	[1]				81,000
Change in translation adjustment on non-consolidated foreign subsidiary, net of tax	[1]				$ 45,000
Revolving Credit Facility [Member] | Line of Credit [Member] | ICP [Member]
Schedule of Equity Method Investments [Line Items]
Maximum borrowing capacity		$ 30,000,000
Future maximum borrowing capacity increase		20,000,000
Amended and Restated Revolving Credit Facility [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | ICP [Member]
Schedule of Equity Method Investments [Line Items]
Termination of borrowing, amount		$ 15,000,000

[1] See Note 2. Equity Method Investments for amounts reclassified from Accumulated Other Comprehensive Loss.