v3.3.1.900

Related Party Transactions (Details 2) $ in Thousands	1 Months Ended	3 Months Ended								12 Months Ended
	Apr. 30, 2011	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2015 USD ($) affiliate	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Related Party Transaction [Line Items]
Number of parties | affiliate										2
Revenue from related party		$ 66,004	$ 49,325	$ 80,815	$ 93,050	$ 74,401	$ 66,733	$ 77,215	$ 80,316	$ 289,194	$ 298,665	$ 323,672
Cost of product sold (exclusive of depreciation and amortization)		9,495	$ 14,501	$ 15,424	$ 25,769	15,374	$ 15,434	$ 19,436	$ 21,708	65,189	71,952	58,075
Receivables		883				1,848				883	1,848
Asset included in other non-current assets		777				957				777	957
Liability included in other current liabilities		1,940				2,279				$ 1,940	2,279
Tail gas | CRNF | CRRM
Related Party Transaction [Line Items]
Initial term of agreement (in years)										20 years
Renewal period of agreement (in years)										5 years
Notice period for termination of agreement										3 years
Feedstock and Shared Services Agreement | CRNF | CRRM
Related Party Transaction [Line Items]
Related party transaction amount incurred										$ 200		300
Feedstock and Shared Services Agreement | Hydrogen | CRRM
Related Party Transaction [Line Items]
Cost of product sold (exclusive of depreciation and amortization)										8	41	600
Feedstock and Shared Services Agreement | Hydrogen | CRNF | CRRM
Related Party Transaction [Line Items]
Revenue from related party										11,800	10,100	11,400
Feedstock and Shared Services Agreement | Hydrogen | Prepaid Expenses and Other Current Assets
Related Party Transaction [Line Items]
Receivables		500				1,300				500	1,300
Feedstock and Shared Services Agreement | Nitrogen | CRRM
Related Party Transaction [Line Items]
Related party transaction amount incurred											1,000	500
Feedstock and Shared Services Agreement | Tail gas | CRNF | CRRM
Related Party Transaction [Line Items]
Receivables		200				200				200	$ 200
Period for payment of cost of installation of pipe (in years)	3 years
Percentage of payment agreed to be paid for cost of capital in fourth year											15.00%
Asset included in other non-current assets		800				1,000				800	$ 1,000
Liability included in other current liabilities						100					100
Feedstock and Shared Services Agreement | Products and services excluding hydrogen and tail gas
Related Party Transaction [Line Items]
Receivables						200					200
Feedstock and Shared Services Agreement | Products and services excluding hydrogen and tail gas | CRRM
Related Party Transaction [Line Items]
Receivables		200								200
Liability included in other current liabilities		700				1,100				700	1,100
Coke Supply Agreement | Petroleum coke | CRRM
Related Party Transaction [Line Items]
Cost of product sold (exclusive of depreciation and amortization)										6,600	9,200	$ 9,800
Liability included in other current liabilities		$ 300				$ 500				$ 300	$ 500
Coke Supply Agreement | Petroleum coke | CRNF | CRRM
Related Party Transaction [Line Items]
Initial term of agreement (in years)										20 years
Renewal period of agreement (in years)										5 years
Notice period for termination of agreement										3 years

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