Components of Working Capital - Other Current Assets Table (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Other Current Assets [Line Items]
Natural gas liquids inventory	$ 7,126	$ 2,403
Imbalance receivables	3,483	2,122
Prepaid insurance	2,889	2,998
Other	0	1,034
Total other current assets	$ 13,498	$ 8,557

Carrying amount as of the balance sheet date of liquid hydrocarbon components recovered from natural gas.

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