Reportable Segments and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Segment for the results of operations

The following table represents the significant items by reportable segment for the results of operations for the years ended December 31, 2017, 2016 and 2015:

	2017			2016			2015
Net sales:
Biomass-based Diesel (includes REG Germany's net sales of $171,175, $171,358, and $145,039, respectively)	$	2,039,982		$	1,952,361		$	1,326,452
Services	103,215			87,014			102,731
Renewable Chemicals	4,531			2,065			—
Corporate and other	212,557			106,572			68,984
Intersegment revenues	(202,042		)	(106,780		)	(110,823		)
	$	2,158,243		$	2,041,232		$	1,387,344
Income (loss) before income taxes
Biomass-based diesel (includes REG Germany's income (loss) of ($7,544), $5,007, and $(1,643), respectively)	$	(63,925	)	$	64,814		$	(100,152	)
Services	2,899			2,970			6,323
Renewable Chemicals	(19,326		)	(19,787		)	(52,728		)
Corporate and other	(29,217		)	984			(13,854		)
	$	(109,569	)	$	48,981		$	(160,411	)
Depreciation and amortization expense, net:
Biomass-based diesel (includes REG Germany's amounts of $2,990, $2,849, and $3,259, respectively)	$	31,011		$	29,018		$	22,799
Services	1,092			613			302
Renewable Chemicals	2,666			1,550			1,413
Corporate and other	2,167			1,696			1,362
	$	36,936		$	32,877		$	25,876
Cash paid for purchases of property, plant and equipment:
Biomass-based diesel (includes REG Germany's amounts of $3,241, $1,353, and $1,816, respectively)	$	60,734		$	52,952		$	59,859
Services	3,826			4,731			1,510
Renewable Chemicals	14			473			672
Corporate and other	2,998			2,549			2,436
	$	67,572		$	60,705		$	64,477

	2017			2016
Goodwill:
Biomass-based diesel	$	—		$	—
Services	16,080			16,080
Renewable Chemicals	—			—
	$	16,080		$	16,080
Assets:
Biomass-based diesel (including REG Germany's assets of $55,761 and $51,822)	$	898,180		$	1,026,349
Services	55,581			53,823
Renewable Chemicals	21,168			22,883
Corporate and other	386,590			299,825
Intersegment eliminations	(355,923		)	(266,277		)
	$	1,005,596		$	1,136,603

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 subsidiaries making the sale and long-lived assets based on physical location. Long-lived assets represent the net book value of property, plant and equipment.

	2017		2016			2015
Net sales:
United States	$	1,961,303	$	1,869,874		$	1,242,305
Germany	171,175		171,358		—	145,039
Other Foreign	25,765		—			—
Total Foreign	196,940		171,358			145,039
	$	2,158,243	$	2,041,232		$	1,387,344

	2017	2016
Long-lived assets:
United States	566,028	580,868
Germany	20,689	18,472
Other Foreign	680	134
Total Foreign	21,369	18,606
	587,397	599,474