Derivative Instruments (Tables)

9 Months Ended

Sep. 30, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)

	Amounts of Gains (Losses) Recognized in Other Comprehensive Income (Loss) on Derivatives
	Quarter Ended				Year to Date Ended
Derivatives in Cash Flow Hedging Relationship	September 30, 2013		September 30, 2012		September 30, 2013		September 30, 2012
Commodity derivatives	$	—	$	—	$	—	$	(286	)

	Amounts of Gains (Losses) Reclassified from Accumulated Other Comprehensive Income (Loss) into Earnings
	Quarter Ended				Year to Date Ended
Location of Losses Reclassified from AOCI into Income	September 30, 2013		September 30, 2012		September 30, 2013		September 30, 2012
Cost of Sales	$	—	$	—	$	—	$	(413	)

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance

The following table provides the gain or (loss) for the Company’s commodity derivatives not designated as hedging instruments and where it was recognized in the Condensed Consolidated Statements of Comprehensive Income (Loss).

		Quarter Ended				Year to Date Ended
	Classified	September 30, 2013		September 30, 2012		September 30, 2013		September 30, 2012
Commodity derivatives	Cost of sales	$	—	$	2,670	$	—	$	2,204