XML 41 R52.htm IDEA: XBRL DOCUMENT v2.4.1.9
Segment Information (Narrative) (Details)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Segment Reporting Information [Line Items]      
Number of reportable segments 2us-gaap_NumberOfReportableSegments    
Operating segments | General rentals      
Segment Reporting Information [Line Items]      
Number of geographic regions entity operates in (in locations) 12uri_NumberOfGeographicRegionsEntityOperatesIn
/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_StatementBusinessSegmentsAxis
= uri_GeneralRentalsMember		    
Product concentration risk | Equipment rental revenue | General construction and industrial equipment | Operating segments | General rentals      
Segment Reporting Information [Line Items]      
Percentage of equipment rental revenue 43.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= uri_EquipmentRentalRevenueMember
/ us-gaap_ConcentrationRiskByTypeAxis
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= us-gaap_OperatingSegmentsMember
/ us-gaap_ProductOrServiceAxis
= uri_GeneralConstructionAndIndustrialEquipmentMember
/ us-gaap_StatementBusinessSegmentsAxis
= uri_GeneralRentalsMember		 44.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
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/ us-gaap_ConcentrationRiskByTypeAxis
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= uri_GeneralRentalsMember		 45.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
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/ us-gaap_ConcentrationRiskByTypeAxis
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/ us-gaap_ProductOrServiceAxis
= uri_GeneralConstructionAndIndustrialEquipmentMember
/ us-gaap_StatementBusinessSegmentsAxis
= uri_GeneralRentalsMember
Product concentration risk | Equipment rental revenue | Aerial work platforms | Operating segments | General rentals      
Segment Reporting Information [Line Items]      
Percentage of equipment rental revenue 33.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= uri_EquipmentRentalRevenueMember
/ us-gaap_ConcentrationRiskByTypeAxis
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/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_ProductOrServiceAxis
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= uri_GeneralRentalsMember		 36.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
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/ us-gaap_ConcentrationRiskByBenchmarkAxis
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= uri_AerialWorkPlatformsMember
/ us-gaap_StatementBusinessSegmentsAxis
= uri_GeneralRentalsMember
Product concentration risk | Equipment rental revenue | General tools and light equipment | Operating segments | General rentals      
Segment Reporting Information [Line Items]      
Percentage of equipment rental revenue 10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= uri_EquipmentRentalRevenueMember
/ us-gaap_ConcentrationRiskByTypeAxis
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/ us-gaap_ConsolidationItemsAxis
= us-gaap_OperatingSegmentsMember
/ us-gaap_ProductOrServiceAxis
= uri_GeneralToolsAndLightEquipmentMember
/ us-gaap_StatementBusinessSegmentsAxis
= uri_GeneralRentalsMember		 9.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
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/ us-gaap_ConcentrationRiskByTypeAxis
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/ us-gaap_ConsolidationItemsAxis
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= uri_GeneralRentalsMember		 9.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
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Product concentration risk | Equipment rental revenue | Power and HVAC equipment | Operating segments | Trench safety, Power and HVAC, and Pump Solutions      
Segment Reporting Information [Line Items]      
Percentage of equipment rental revenue 6.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
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/ us-gaap_ConcentrationRiskByTypeAxis
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= uri_TrenchSafetyPowerandHVACandPumpSolutionsMember		 6.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
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= uri_TrenchSafetyPowerandHVACandPumpSolutionsMember
Product concentration risk | Equipment rental revenue | Trench safety equipment | Operating segments | Trench safety, Power and HVAC, and Pump Solutions      
Segment Reporting Information [Line Items]      
Percentage of equipment rental revenue 5.00%us-gaap_ConcentrationRiskPercentage1
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Product concentration risk | Equipment rental revenue | Pumps | Operating segments | Trench safety, Power and HVAC, and Pump Solutions      
Segment Reporting Information [Line Items]      
Percentage of equipment rental revenue 3.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
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= uri_TrenchSafetyPowerandHVACandPumpSolutionsMember