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Acquisitions (Details 5) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended 6 Months Ended 0 Months Ended
Mar. 31, 2013
Mar. 31, 2014
Sep. 30, 2014
Aug. 02, 2013
Mar. 31, 2012
Mar. 31, 2011
Acquisitions            
Cash paid, net of cash acquired $ 14,000us-gaap_PaymentsToAcquireBusinessesGross          
Estimated fair values of the assets acquired and liabilities assumed            
Goodwill 555,220us-gaap_Goodwill 1,107,006us-gaap_Goodwill 1,170,490us-gaap_Goodwill   167,245us-gaap_Goodwill 8,568us-gaap_Goodwill
Vehicles | Minimum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   3 years        
Vehicles | Maximum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   25 years        
Water treatment facilities and equipment | Minimum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   3 years 3 years      
Water treatment facilities and equipment | Maximum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   30 years 30 years      
Buildings and leasehold improvements | Minimum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   3 years 3 years      
Buildings and leasehold improvements | Maximum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   40 years 40 years      
Oilfield Water Lines LP            
Acquisitions            
Number of common units issued to acquire business (in shares)   2,463,287us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
  2,463,287us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
   
Value of common units issued   68,557us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
  68,600us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
   
Cash paid, net of cash acquired   167,732us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
  167,700us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
   
Estimated fair values of the assets acquired and liabilities assumed            
Accounts receivable - trade   7,268us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
6,837us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
     
Inventories   154us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
154us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
     
Prepaid expenses and other current assets   402us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
402us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
     
Goodwill   89,699us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
90,144us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
     
Accounts payable - trade   (6,469)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
(6,469)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
     
Accrued expenses and other payables   (992)ngl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpensesAndOtherPayables
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
(992)ngl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpensesAndOtherPayables
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
     
Other noncurrent liabilities   (64)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
(64)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
     
Fair value of net assets acquired   236,289us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
236,289us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
     
Oilfield Water Lines LP | Estimated            
Estimated fair values of the assets acquired and liabilities assumed            
Accounts receivable - trade   7,268us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
       
Inventories   154us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
       
Prepaid expenses and other current assets   402us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
       
Goodwill   89,699us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
       
Accounts payable - trade   (6,469)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
       
Accrued expenses and other payables   (992)ngl_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpensesAndOtherPayables
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
       
Other noncurrent liabilities   (64)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
       
Fair value of net assets acquired   236,289us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
       
Oilfield Water Lines LP | Change            
Estimated fair values of the assets acquired and liabilities assumed            
Accounts receivable - trade     (431)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_PurchasePriceAllocationAdjustmentsMember
     
Goodwill     445us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_PurchasePriceAllocationAdjustmentsMember
     
Oilfield Water Lines LP | Customer relationships            
Estimated fair values of the assets acquired and liabilities assumed            
Intangible assets   110,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
110,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
     
Useful life of intangible assets   10 years        
Oilfield Water Lines LP | Customer relationships | Estimated            
Estimated fair values of the assets acquired and liabilities assumed            
Intangible assets   110,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember
       
Oilfield Water Lines LP | Customer relationships | Minimum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of intangible assets     8 years      
Oilfield Water Lines LP | Customer relationships | Maximum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of intangible assets     10 years      
Oilfield Water Lines LP | Non-compete agreements            
Estimated fair values of the assets acquired and liabilities assumed            
Intangible assets   2,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_NoncompeteAgreementsMember
2,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_NoncompeteAgreementsMember
     
Useful life of intangible assets   2 years 6 months 3 years      
Oilfield Water Lines LP | Non-compete agreements | Estimated            
Estimated fair values of the assets acquired and liabilities assumed            
Intangible assets   2,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_NoncompeteAgreementsMember
       
Oilfield Water Lines LP | Vehicles            
Estimated fair values of the assets acquired and liabilities assumed            
Property, plant and equipment   8,157us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_VehiclesMember
8,143us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_VehiclesMember
     
Oilfield Water Lines LP | Vehicles | Estimated            
Estimated fair values of the assets acquired and liabilities assumed            
Property, plant and equipment   8,157us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_VehiclesMember
       
Oilfield Water Lines LP | Vehicles | Change            
Estimated fair values of the assets acquired and liabilities assumed            
Property, plant and equipment     (14)us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_PurchasePriceAllocationAdjustmentsMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_VehiclesMember
     
Oilfield Water Lines LP | Vehicles | Minimum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   5 years 5 years      
Oilfield Water Lines LP | Vehicles | Maximum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   10 years 10 years      
Oilfield Water Lines LP | Water treatment facilities and equipment            
Estimated fair values of the assets acquired and liabilities assumed            
Property, plant and equipment   23,173us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ngl_WaterTreatmentFacilitiesAndEquipmentMember
23,173us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ngl_WaterTreatmentFacilitiesAndEquipmentMember
     
Oilfield Water Lines LP | Water treatment facilities and equipment | Estimated            
Estimated fair values of the assets acquired and liabilities assumed            
Property, plant and equipment   23,173us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ngl_WaterTreatmentFacilitiesAndEquipmentMember
       
Oilfield Water Lines LP | Water treatment facilities and equipment | Minimum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   3 years 3 years      
Oilfield Water Lines LP | Water treatment facilities and equipment | Maximum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   30 years 30 years      
Oilfield Water Lines LP | Buildings and leasehold improvements            
Estimated fair values of the assets acquired and liabilities assumed            
Property, plant and equipment   2,198us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ngl_BuildingsAndLeaseholdImprovementsMember
2,198us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ngl_BuildingsAndLeaseholdImprovementsMember
     
Oilfield Water Lines LP | Buildings and leasehold improvements | Estimated            
Estimated fair values of the assets acquired and liabilities assumed            
Property, plant and equipment   2,198us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= ngl_BuildingsAndLeaseholdImprovementsMember
       
Oilfield Water Lines LP | Buildings and leasehold improvements | Minimum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   7 years 7 years      
Oilfield Water Lines LP | Buildings and leasehold improvements | Maximum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   30 years 30 years      
Oilfield Water Lines LP | Land            
Estimated fair values of the assets acquired and liabilities assumed            
Property, plant and equipment   710us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
710us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
     
Oilfield Water Lines LP | Land | Estimated            
Estimated fair values of the assets acquired and liabilities assumed            
Property, plant and equipment   710us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
       
Oilfield Water Lines LP | Other            
Estimated fair values of the assets acquired and liabilities assumed            
Property, plant and equipment   53us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OtherMachineryAndEquipmentMember
53us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OtherMachineryAndEquipmentMember
     
Oilfield Water Lines LP | Other | Estimated            
Estimated fair values of the assets acquired and liabilities assumed            
Property, plant and equipment   53us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ngl_OilfieldWaterLinesLPMember
/ us-gaap_ChangeInAccountingEstimateByTypeAxis
= us-gaap_ScenarioPreviouslyReportedMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OtherMachineryAndEquipmentMember
       
Oilfield Water Lines LP | Other | Minimum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   3 years 3 years      
Oilfield Water Lines LP | Other | Maximum            
Estimated fair values of the assets acquired and liabilities assumed            
Useful life of property, plant and equipment   5 years 5 years