Reportable Segments and Geographic Information (Tables)

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Segment for the Results of Operations

The following table represents the significant items by reportable segment:

	Three Months   Ended   June 30,   2016			Three Months   Ended   June 30,   2015			Six Months   Ended   June 30,   2016			Six Months   Ended   June 30,   2015
Net revenues:
Biomass-based Diesel (includes Petrotec's net sales of $45,748 and $82,667 and $38,081 and $68,074 for the three and six months ended June 30, 2016 and 2015, respectively)	$	539,631		$	363,101		$	832,393		$	587,289
Services	21,396			27,923			42,133			43,394
Renewable Chemicals	1,000			—			1,000			—
Corporate and Other	23,643			15,220			40,631			22,562
Intersegment revenues	(27,369		)	(32,482		)	(52,262		)	(48,565		)
	$	558,301		$	373,762		$	863,895		$	604,680
Income (loss) before income taxes:
Biomass-based Diesel (includes Petrotec's income (loss) of $1,183 and $1,616 and ($906) and ($2,008) for the three and six months ended June 30, 2016 and 2015, respectively)	$	(3,591	)	$	3,576		$	9,269		$	(28,100	)
Services	1,261			202			1,834			252
Renewable Chemicals	(3,924		)	(4,316		)	(8,605		)	(8,207		)
Corporate and other	15,265			(2,332		)	8,077			(6,016		)
	$	9,011		$	(2,870	)	$	10,575		$	(42,071	)
Depreciation and amortization expense, net:
Biomass-based Diesel (includes Petrotec's amounts of $594 and $1,445 and $915 and $1,602 for the three and six months ended June 30, 2016 and 2015, respectively)	$	7,140		$	5,454		$	14,068		$	10,425
Services	117			76			213			137
Renewable Chemicals	368			319			782			662
Corporate and other	392			385			789			736
	$	8,017		$	6,234		$	15,852		$	11,960
Cash paid for purchases of property, plant and equipment:
Biomass-based Diesel (includes Petrotec's amounts of $374 and $374 and $659 and $977 for the three and six months ended June 30, 2016 and 2015, respectively)	$	11,895		$	14,889		$	25,499		$	25,092
Services	—			403			1,166			1,125
Renewable Chemicals	619			163			619			304
Corporate and other	183			75			183			1,186
	$	12,697		$	15,530		$	27,467		$	27,707

	June 30, 2016			December 31, 2015
Goodwill:
Services	$	16,080		$	16,080
Assets:
Biomass-based Diesel (including Petrotec's assets of $52,273 and $45,471, respectively)	$	888,175		$	1,048,923
Services	49,913			60,308
Renewable Chemicals	24,657			23,872
Corporate and other	379,867			308,782
Intersegment eliminations	(189,122		)	(218,265		)
	$	1,153,490		$	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.

	Three Months   Ended   June 30,   2016		Three Months   Ended   June 30,   2015		Six Months   Ended   June 30,   2016		Six Months   Ended   June 30,   2015
Net revenues:
United States	$	512,553	$	335,681	$	781,228	$	536,606
Foreign	45,748		38,081		82,667		68,074
	$	558,301	$	373,762	$	863,895	$	604,680

	June 30, 2016		December 31, 2015
Long-lived assets:
United States	$	582,983	$	553,987
Foreign	19,426		20,597
	$	602,409	$	574,584