Reportable Segments and Geographic Information (Tables)

3 Months Ended

Mar. 31, 2016

Segment Reporting [Abstract]

Segment for the Results of Operations

The following table represents the significant items by reportable segment:

	Three Months   Ended   March 31,   2016			Three Months   Ended   March 31,   2015
Net revenues:
Biomass-based Diesel (includes Petrotec's net sales of $36,995 and $29,993, respectively)	$	292,762		$	224,188
Services	20,737			15,471
Corporate and Other	16,988			7,342
Intersegment revenues	(24,893		)	(16,083		)
	$	305,594		$	230,918
Income (loss) before income taxes:
Biomass-based Diesel (includes Petrotec's income (loss) of $407 and ($1,048), respectively)	$	12,860		$	(31,676	)
Services	573			50
Renewable Chemicals	(4,681		)	(3,891		)
Corporate and other	(7,188		)	(3,684		)
	$	1,564		$	(39,201	)
Depreciation and amortization expense, net:
Biomass-based Diesel (includes Petrotec's amounts of $851 and $687, respectively)	$	6,929		$	4,971
Services	96			62
Renewable Chemicals	414			343
Corporate and other	396			350
	$	7,835		$	5,726
Cash paid for purchases of property, plant and equipment:
Biomass-based Diesel (includes Petrotec's amounts of $347 and $318, respectively)	$	13,604		$	10,410
Services	1,166			722
Renewable Chemicals	—			140
Corporate and other	—			906
	$	14,770		$	12,178

	As of March 31, 2016			As of December 31, 2015
Goodwill:
Services	$	16,080		$	16,080
Assets:
Biomass-based Diesel (including Petrotec's assets of $52,221 and $45,471, respectively)	$	1,003,250		$	1,048,923
Services	49,636			60,308
Renewable Chemicals	24,150			23,872
Corporate and other	366,739			308,782
Intersegment eliminations	$	(219,418	)	$	(218,265	)
	$	1,224,357		$	1,223,620

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

The following geographic data include net sales attributed to the countries based on the location of the subsidiary making the sale and long-lived assets based on physical location. Long-lived assets represent the net book value of property, plant and equipment.

	As of Three Months   Ended   March 31,   2016		As of Three Months   Ended   March 31,   2015
Net revenues:
United States	$	268,599	$	200,925
Foreign	36,995		29,993
	$	305,594	$	230,918

	As of As of, March 31, 2016		As of As of, December 31, 2015
Long-lived assets:
United States	$	579,544	$	553,987
Foreign	20,986		20,597
	$	600,530	$	574,584