Guarantees (Tables)

12 Months Ended

Dec. 31, 2014

Guarantees [Abstract]

Parental guaranteed obligations

As of December 31, 2014, parental guaranteed obligations are approximately as follows (in thousands):

	2015		2016		2017		2018		Thereafter		Total
Commodity purchases	$	41,110		-		-		-		-	$	41,110
Letters of credit		15,300		-		-		-		-		15,300
	$	56,410	$	-	$	-	$	-	$	-	$	56,410