Quarterly report pursuant to Section 13 or 15(d)

Subsequent Event (Details)

v3.19.2
Subsequent Event (Details)
$ in Thousands, gal in Millions
Jul. 31, 2019
gal
Jul. 24, 2019
USD ($)
gal
Jun. 30, 2019
USD ($)
gal
Dec. 31, 2018
USD ($)
Subsequent Event [Line Items]        
Production capacity per year     520  
Net book value of property, plant and equipment | $     $ 591,710 $ 590,723
Subsequent Event        
Subsequent Event [Line Items]        
Production capacity per year 505 505    
Subsequent Event | REG New Boston        
Subsequent Event [Line Items]        
Production capacity per year 15 15    
Net book value of property, plant and equipment | $   $ 15,755