Income Per Limited Partner Unit Narrative (Details)	12 Months Ended
Dec. 31, 2014
Earnings Per Share [Abstract]
General Partner Make Whole Amount	100.00%rgp_GeneralPartnerMakeWholeAmount

General Partner Percentage Allocation Of Income Until Made Whole For Net Losses Allocatted To It In Prior Years

No definition available.

Name:	rgp_GeneralPartnerMakeWholeAmount
Namespace Prefix:	rgp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration