Stock-Based Compensation (Summary Of Units Activity Under The Plan) (Details) - 6 months ended Jun. 30, 2015 - $ / shares	Total
MEP Units [Member] \| 2012 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested balance at beginning of period	20,611
Units vested	(6,073)
Nonvested balance at end of period	14,538
Weighted-Average Grant Date Fair Value - Nonvested balance at beginning of period	$ 0.55
Weighted-Average Grant Date Fair Value - Units vested	0.18
Weighted-Average Grant Date Fair Value - Nonvested balance at end of period	$ 0.70
Class M Units \| 2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested balance at beginning of period	66,500
Nonvested balance at end of period	66,500
Weighted-Average Grant Date Fair Value - Nonvested balance at beginning of period	$ 58.37
Weighted-Average Grant Date Fair Value - Nonvested balance at end of period	$ 58.37
Class O Units \| 2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested balance at beginning of period	72,806
Nonvested balance at end of period	72,806
Weighted-Average Grant Date Fair Value - Nonvested balance at beginning of period	$ 0.47
Weighted-Average Grant Date Fair Value - Nonvested balance at end of period	$ 0.47

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ 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 (c)(2)(iii)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

+ 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 (c)(2)(iii)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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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