Basis of Presentation and Nature of the Business (Details) gal in Millions	9 Months Ended
	Sep. 30, 2015 facility biorefinery gal	Aug. 19, 2015 gal
Class of Stock [Line Items]
Number of operating biodiesel production facilities | facility	10
Production capacity per year	432
Imperium Renewables, Inc.
Class of Stock [Line Items]
Production capacity per year	100	100
Petrotec AG
Class of Stock [Line Items]
Number of biorefineries | biorefinery	2