Business Combinations - Purchase Allocation for Acquired Assets and Liabilities and Non Controlling Interests (Details) - USD ($) $ in Thousands	Feb. 24, 2017	Jan. 26, 2016
Kern Phase 1(a) Assets
Business Acquisition [Line Items]
Property and equipment		$ 9,510
Related party payable		(3,435)
Asset retirement obligation		(322)
Noncontrolling interest		(866)
Net assets acquired		4,887
Kern Phase 1(b) Assets
Business Acquisition [Line Items]
Property and equipment		18,856
Related party payable		(7,123)
Asset retirement obligation		(785)
Noncontrolling interest		(1,794)
Net assets acquired		9,154
Kern Phase 2(a) Assets
Business Acquisition [Line Items]
Property and equipment		14,873
Related party payable		(4,504)
Asset retirement obligation		(623)
Noncontrolling interest		(1,332)
Net assets acquired		8,414
Kern Phase 2(b) Assets
Business Acquisition [Line Items]
Property and equipment		11,872
Related party payable		(4,287)
Asset retirement obligation		(493)
Noncontrolling interest	$ (1,100)	(1,078)
Net assets acquired		$ 6,014

Business combination recognized identifiable assets acquired and liabilities assumed asset retirement obligation.

No definition available.

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- Definition

Business combination recognized identifiable assets acquired and liabilities assumed related parties payable.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

+ References

+ Details

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- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=73531372&loc=d3e2207-128464

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- Definition

Amount recognized as of the acquisition date for the assets, including goodwill, in excess of (less than) the aggregate liabilities assumed, less the noncontrolling interest in the acquiree.

+ References

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