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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES RECLASSIFICATIONS (Details) (ITF, Compressed natural gas fueling stations)
Nov. 01, 2014
ITF | Compressed natural gas fueling stations
  
Number of compressed natural gas fueling stations sold 8teg_NumberOfCompressedNaturalGasFuelingStationsSold
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= teg_SaleOfCompressedNaturalGasFuelingStationsMember
/ dei_LegalEntityAxis
= teg_IntegrysTransportationFuelsLLCMember