Reportable Segments and Geographic Information (Tables)

6 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Schedule of Significant Items by Reportable Segment

The following table represents the significant items by reportable segment:

	Three Months   Ended   June 30,   2018			Three Months   Ended   June 30,   2017			Six Months   Ended   June 30,   2018			Six Months   Ended   June 30,   2017
Net revenues:
Biomass-based Diesel (includes REG Germany's net sales of $43,369 and $89,725 and $41,473 and $95,025 for the three and six months ended June 30, 2018 and 2017, respectively)	$	541,774		$	532,527		$	1,170,167		$	922,632
Services	17,523			20,922			52,738			43,755
Renewable Chemicals	1,063			1,002			2,923			1,830
Corporate and Other	53,173			39,366			127,716			77,138
Intersegment revenues	(33,383		)	(58,714		)	(84,142		)	(91,359		)
	$	580,150		$	535,103		$	1,269,402		$	953,996
Income (loss) before income taxes:
Biomass-based Diesel (includes REG Germany's loss of ($1,078) and ($5,689) and ($2,092) and ($1,332) for the three and six months ended June 30, 2018 and 2017, respectively)	$	32,394		$	4,323		$	247,964		$	(6,392	)
Services	(267		)	(267		)	4,757			(377		)
Renewable Chemicals	(6,291		)	(4,828		)	(13,775		)	(9,835		)
Corporate and Other	11,849			(32,077		)	11,925			(31,084		)
	$	37,685		$	(32,849	)	$	250,871		$	(47,688	)
Depreciation and amortization expense, net:
Biomass-based Diesel (includes REG Germany's amounts of $570 and $1,367 and $788 and $1,474, for the three and six months ended June 30, 2018, respectively)	$	8,427		$	7,830		$	16,731		$	15,570
Services	357			251			685			482
Renewable Chemicals	394			384			789			769
Corporate and Other	440			508			906			1,015
	$	9,618		$	8,973		$	19,111		$	17,836
Cash paid for purchases of property, plant and equipment:
Biomass-based Diesel (includes REG Germany's amounts of $288 and $701 and $1,227 and $2,395, for the three and six months ended June 30, 2018 and 2017 respectively)	$	11,447		$	13,517		$	27,049		$	29,398
Services	911			938			1,763			1,520
Renewable Chemicals	—			—			335			7
Corporate and Other	—			946			33			1,112
	$	12,358		$	15,401		$	29,180		$	32,037

	June 30, 2018			December 31, 2017
Goodwill:
Services	$	16,080		$	16,080
Assets:
Biomass-based Diesel (including REG Germany's assets of $53,768 and $55,761, respectively)	$	955,055		$	898,180
Services	61,040			55,581
Renewable Chemicals	19,501			21,168
Corporate and Other	389,652			386,590
Intersegment eliminations	(272,478		)	(355,923		)
	$	1,152,770		$	1,005,596

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,   2018		Three Months   Ended   June 30,   2017		Six Months   Ended   June 30,   2018		Six Months   Ended   June 30,   2017
Net revenues:
United States	$	534,110	$	477,769	$	1,175,034	$	843,110
Germany	43,369		41,473		89,725		95,025
Other Foreign	2,671		15,861		4,643		15,861
Non-United States	46,040		57,334		94,368		110,886
	$	580,150	$	535,103	$	1,269,402	$	953,996

	June 30, 2018		December 31, 2017
Long-lived assets:
United States	$	570,921	$	566,028
Germany	19,734		20,689
Other Foreign	610		680
	$	591,265	$	587,397