XML 58 R51.htm IDEA: XBRL DOCUMENT v2.4.1.9
Subsequent Events - Additional Information (Detail) (Subsequent Event, USD $)
In Millions, except Per Share data, unless otherwise specified
 1 Months Ended
Jan. 31, 2015
Subsequent Event [Line Items]  
Payment to acquire propane dealership $ 1.1us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
Net working capital credits acquired 0.1sgu_BusinessAcquisitionNetWorkingCapitalAcquired
Dividend Declared
  
Subsequent Event [Line Items]  
Distribution declared $ 0.0875us-gaap_PartnersCapitalDistributionAmountPerShare
/ us-gaap_DividendsAxis
= us-gaap_DividendDeclaredMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Partners capital projected distribution amount on annualized basis $ 0.35sgu_PartnersCapitalProjectedDistributionAmountOnAnnualizedBasisPerShare
/ us-gaap_DividendsAxis
= us-gaap_DividendDeclaredMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Minimum dividend distribution per unit $ 0.0675sgu_MinimumDividendDistributionPerUnit
/ us-gaap_DividendsAxis
= us-gaap_DividendDeclaredMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Percentage of distributions to common unit holders in excess of minimum quarterly distribution 90.00%sgu_PercentageOfDistributionsToCommonUnitHoldersInExcessOfMinimumQuarterlyDistribution
/ us-gaap_DividendsAxis
= us-gaap_DividendDeclaredMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Percentage of distributions to general unit holders in excess of minimum quarterly distribution 10.00%sgu_PercentageOfDistributionsToGeneralUnitHoldersInExcessOfMinimumQuarterlyDistribution
/ us-gaap_DividendsAxis
= us-gaap_DividendDeclaredMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Amount to paid to common unit holders 5.0us-gaap_LimitedPartnersCapitalAccountDistributionAmount
/ us-gaap_DividendsAxis
= us-gaap_DividendDeclaredMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Amount to paid to the General Partner 0.1us-gaap_GeneralPartnersCapitalAccountDistributionAmount
/ us-gaap_DividendsAxis
= us-gaap_DividendDeclaredMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Incentive distribution to the General Partner 0.06sgu_IncentiveDistributionToGeneralPartner
/ us-gaap_DividendsAxis
= us-gaap_DividendDeclaredMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Incentive distributions to management $ 0.06sgu_IncentiveDistributionsToManagement
/ us-gaap_DividendsAxis
= us-gaap_DividendDeclaredMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Dividend payable date Feb. 10, 2015
Dividend record date Jan. 30, 2015