XML 34 R24.htm IDEA: XBRL DOCUMENT v2.4.1.9
INVESTMENT IN NUSTAR ENERGY Narrative (Details) (NuStar Energy [Member])
Feb. 26, 2014
Jan. 02, 2015
Axeon [Member]    
Schedule of Equity Method Investments [Line Items]    
Equity method investment percent voting interest sold 50.00%nsh_OwnershipPercentageofEntitySold
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= nsh_AxeonMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= us-gaap_EquityMethodInvesteeMember		  
Ownership percentage by acquiring entity 100.00%nsh_OwnershipPercentageOfAcquiringEntity
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= nsh_AxeonMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= us-gaap_EquityMethodInvesteeMember		  
Linden Acquisition [Member]    
Schedule of Equity Method Investments [Line Items]    
Equity method investment acquisition, ownership interest before transaction   50.00%nsh_EquityMethodInvestmentBusinessAcquisitionOwnershipInterestBeforeTransaction
/ us-gaap_BusinessAcquisitionAxis
= nsh_LindenAcquisitionMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= us-gaap_EquityMethodInvesteeMember
Equity method investment acquisition, ownership interest after transaction   100.00%nsh_EquityMethodInvestmentBusinessAcquisitionOwnershipInterestAfterTransaction
/ us-gaap_BusinessAcquisitionAxis
= nsh_LindenAcquisitionMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= us-gaap_EquityMethodInvesteeMember