Business Acquisitions - Additional Information Contingent Consideration, Replacement Restricted Stock Units and Replacement Phantom Units (Details) $ in Millions	12 Months Ended
Dec. 31, 2016 USD ($) shares
Replacement Restricted Stock Units (RSUs) [Member]
Business Acquisition [Line Items]
Vesting period of original term	4 years
Number of common units called by replacement equity unit (in shares) \| shares	1
Dividend payment period	60 days
Replacement Restricted Stock Units (RSUs) [Member] \| Vesting Term One [Member]
Business Acquisition [Line Items]
Vesting percentage original term	25.00%
Replacement Restricted Stock Units (RSUs) [Member] \| Vesting Term Two [Member]
Business Acquisition [Line Items]
Vesting percentage original term	25.00%
Replacement Restricted Stock Units (RSUs) [Member] \| Vesting Term Three [Member]
Business Acquisition [Line Items]
Vesting percentage original term	75.00%
Replacement Phantom Units [Member]
Business Acquisition [Line Items]
Number of common units called by replacement equity unit (in shares) \| shares	1
Dividend payment period	60 days
Replacement Phantom Units [Member] \| Vesting Term One [Member]
Business Acquisition [Line Items]
Vesting percentage original term	25.00%
Vesting period of original term	4 years
Replacement Phantom Units [Member] \| Vesting Term Two [Member]
Business Acquisition [Line Items]
Vesting percentage original term	33.00%
Vesting period of original term	3 years
Atlas Pipeline Partners [Member]
Business Acquisition [Line Items]
Contingent consideration additional amount \| $	$ 6.0
Contingent liability acquisition date fair value \| $	$ 4.2

Refers to period of dividend payment.

No definition available.

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- Definition

Number of common units into which each replacement equity unit may be converted.

+ References

No definition available.

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- Definition

Refers to vesting percentage original term.

+ 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

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479

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- Definition

The amount, measured at acquisition-date fair value, of all liabilities assumed that arise from contingencies and were recognized by the entity.

+ 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 (d)(1)
-URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, 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 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Details

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- Details

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