Related Party Transactions (Details 4) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Related party transactions entered into for the time periods presented
Sales revenues	$ 1,062,377		$ 1,315,234		$ 1,031,458
Service fee revenues	23,093	[1]	23,536	[1]	22,165	[1]
Purchases of product	604,067		704,948		655,686
Lease income	6,381	[2]	6,223	[2]	6,995	[2]
Labor and benefits reimbursement	11,707	[3]	10,613	[3]	12,140	[3]
Other expenses	1,224	[4]	2,349	[4]	1,093	[4]
Accounts receivable	25,049	[5]	21,979	[5]	28,610	[5]
Accounts payable	$ 17,687	[6]	$ 19,887	[6]	$ 17,804	[6]

[1] Service fee revenues include management fee, corn origination fee, ethanol and DDG marketing fees, and other commissions.

[2] Lease income includes the lease of the Company’s Albion, Michigan and Clymers, Indiana grain facilities as well as certain railcars to the unconsolidated ethanol LLCs and IANR.

[3] The Company provides all operational labor to the unconsolidated ethanol LLCs and charges them an amount equal to the Company’s costs of the related services.

[4] Other expenses include payments to IANR for repair facility rent and use of their railroad reporting mark, payment to LTG for the lease of railcars and other various expenses.

[5] Accounts receivable represents amounts due from related parties for sales of corn, leasing revenue and service fees.

[6] Accounts payable represents amounts due to related parties for purchases of ethanol and other various items.