XML 37 R40.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Partners' Capital and Distributions (Details 2) | 6 Months Ended
--- | ---
Jun. 30, 2014
Class B Shares |
Partners Capital and Distribution |
Balance, beginning of period (in shares) | 472,196,136
Shares exchanged in connection with Exchange Right exercises | (2,213,000)
Balance, end of period (in shares) | 469,983,136
Class A Shares |
Partners Capital and Distribution |
Balance, beginning of period (in shares) | 133,833,637
Shares issued in connection with Exchange Right exercises | 2,213,000
Balance, end of period (in shares) | 136,046,637
Class A Shares | AAP units |
Partners Capital and Distribution |
AAP unit conversion ratio to Class A shares | 1

X
- Definition Represents the number of shares issued in connection with share and unit exchanges. + References No definition available. + Details
Name: | pagp_LimitedPartnersCapitalAccountSharesIssuedInExchange
Namespace Prefix: | pagp_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of units or shares exchanged for another class of shares of the reporting entity. + References No definition available. + Details
Name: | pagp_LimitedPartnersCapitalAccountUnitsOrSharesExchanged
Namespace Prefix: | pagp_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | pagp_PartnersCapitalAndDistributionLineItems
Namespace Prefix: | pagp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of Class A shares that will be issued in exchange for each AAP unit, when exchanged in conjunction with an equal number of Class B shares and general partner units. + References No definition available. + Details
Name: | pagp_UnitExchangeRatio
Namespace Prefix: | pagp_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of limited partner units outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB TOPIC 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 4 -Section F + Details
Name: | us-gaap_LimitedPartnersCapitalAccountUnitsOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant