Related Party Transactions (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Related party transactions entered into for the time periods presented
Sales revenues	$ 359,759		$ 259,264		$ 669,464		$ 476,076
Service fee revenues	5,814	[1]	5,393	[1]	11,615	[1]	10,872	[1]
Purchases of product	183,105		145,569		345,060		294,419
Lease income	1,518	[2]	1,855	[2]	3,070	[2]	3,733	[2]
Labor and benefits reimbursement	2,623	[3]	3,010	[3]	5,266	[3]	5,751	[3]
Other expenses	395	[4]	298	[4]	753	[4]	503	[4]
Accounts receivable at June 30	24,149	[5]	22,111	[5]	24,149	[5]	22,111	[5]
Accounts payable at June 30	$ 27,936	[6]	$ 20,478	[6]	$ 27,936	[6]	$ 20,478	[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 various 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.