v3.5.0.2

Related Party Transactions - Feedstock and Shared Services Agreement (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 30, 2011	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) affiliate	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Related Party Transaction [Line Items]
Number of parties | affiliate				2
Revenue from related party		$ 119,797	$ 80,815	$ 192,889	$ 173,865
Receivables		837		837		$ 883
Other long-term assets, with affiliates		688		688		777
Accounts payable, due to affiliates		2,075		2,075		1,940
Feedstock and Shared Services Agreement | Hydrogen | CRRM
Related Party Transaction [Line Items]
Receivables		200		200		500
Feedstock and Shared Services Agreement | Hydrogen | CRNF | CRRM
Related Party Transaction [Line Items]
Revenue from related party		500	$ 2,000	1,600	$ 8,500
Feedstock and Shared Services Agreement | Tail gas | CRNF | CRRM
Related Party Transaction [Line Items]
Receivables		200		200		200
Percentage of payment agreed to be paid for cost of capital in fourth year	15.00%
Period for payment of cost of installation of pipe	4 years
Other long-term assets, with affiliates		700		700		800
Feedstock and Shared Services Agreement | Products and services, excluding hydrogen and tail gas
Related Party Transaction [Line Items]
Receivables		100		100		200
Accounts payable, due to affiliates		$ 600		$ 600		$ 700

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