v3.5.0.2

SIGNIFICANT ACCOUNTING POLICIES - Other Policies (Details) $ in Thousands		3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) segment	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Significant Accounting Policies
Allowance for doubtful accounts	$ 0	$ 0		$ 0		$ 0
Interest capitalized during the period		0	$ 0	$ 0	$ 0
Number of operating segments | segment				2
Asset retirement obligations	0	0		$ 0		0
Liability for deferred taxes	$ 800	800		800		1,100
Credit Concentration Risk | Trade Accounts Receivable | BP Plc
Significant Accounting Policies
Concentration risk (as a percent)	18.20%
Credit Concentration Risk | Trade Accounts Receivable | Conoco Phillips [Member]
Significant Accounting Policies
Concentration risk (as a percent)	17.30%
Credit Concentration Risk | Trade Accounts Receivable | Anadarko [Member]
Significant Accounting Policies
Concentration risk (as a percent)	13.40%
Azure System Predecessor
Significant Accounting Policies
Liability for deferred taxes	$ 800	800		$ 800		1,100
Scheduled Maintenance Projects
Significant Accounting Policies
Property, plant and equipment, Estimated useful lives				5 years
Natural gas gathering agreement with a minimum revenue commitment (“MRC”)
Significant Accounting Policies
Agreement period				10 years
Deferred revenue	$ 18,500	18,500		$ 18,500		$ 11,600
Deferred revenue, revenue recognized		$ 0	$ 0	$ 0	$ 0

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The length of time covered by the agreement.

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For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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Gross amount of noncurrent deferred tax liabilities, which result from applying the applicable tax rate to taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax.

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Amount of interest capitalized, including amount of allowance for funds used during construction.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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