v3.3.0.814

Quarterly Financial Information (Unaudited) (Details) - USD ($) $ in Thousands	3 Months Ended									6 Months Ended		12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information
Total operating revenues		$ 100,718	$ 71,583	$ 57,441	$ 36,532	$ 22,942	$ 16,994	$ 11,980	$ 6,318
Total operating expenses	$ 51,333	42,758	34,840	33,653	20,965	37,797	7,864	6,216	4,178	$ 103,255	$ 54,618	$ 132,216	$ 56,055	$ 5,354
Operating income (loss)	$ 36,760	57,960	36,743	23,788	15,567	(14,855)	9,130	5,764	2,140	$ 70,673	$ 39,355	134,058	2,179	(4,707)
Net income (loss)		$ 55,898	$ 34,288	$ 22,380	$ 15,309	$ (14,904)	$ 9,078	$ 5,720	$ 2,121			$ 127,875	$ 2,015	$ (4,715)

X

- Definition

Aggregate amount of net income allocated to limited partners.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section S99



-Paragraph 5



-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

+ Details

Name:	us-gaap_NetIncomeLossAllocatedToLimitedPartners
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Aggregate revenue during the period related to oil and gas business activities.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 932



-SubTopic 235



-Section 50



-Paragraph 23



-Subparagraph (a)



-URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62136-109447



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 225



-SubTopic 10



-Section S99



-Paragraph 2



-Subparagraph (SX 210.5-03.1)



-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 932



-SubTopic 235



-Section 50



-Paragraph 24



-URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62246-109447



Reference 4: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 03



-Paragraph 1



-Article 5

+ Details

Name:	us-gaap_OilAndGasRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

+ References

No definition available.

+ Details

Name:	us-gaap_OperatingExpenses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

+ Details

Name:	us-gaap_OperatingIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_SelectedQuarterlyFinancialInformationAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration