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Business Acquisitions Acquired Finite Lived Intangible Assets (Details) - USD ($) $ in Thousands	Aug. 08, 2014	Apr. 10, 2014
August 2014 MidCon Acquisition
Business Acquisitions
Total acquired identifiable intangible assets	$ 48,373
August 2014 MidCon Acquisition | Customer related
Business Acquisitions
Total acquired identifiable intangible assets	$ 21,590
Average Useful Life	25 years
August 2014 MidCon Acquisition | Contract based
Business Acquisitions
Total acquired identifiable intangible assets	$ 26,783
Average Useful Life	5 years
April 2014 MidCon Acquisition
Business Acquisitions
Total acquired identifiable intangible assets		$ 42,474
April 2014 MidCon Acquisition | Customer related
Business Acquisitions
Total acquired identifiable intangible assets		$ 4,701
Average Useful Life		25 years
April 2014 MidCon Acquisition | Contract based
Business Acquisitions
Total acquired identifiable intangible assets		$ 37,773
Average Useful Life		7 years

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275

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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.

+ Details

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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination.

+ References

No definition available.

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