v2.4.1.9

Segment Information Information By Segment (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 510,095 us-gaap_SalesRevenueNet | $ 496,454 us-gaap_SalesRevenueNet | $ 489,353 us-gaap_SalesRevenueNet | $ 474,795 us-gaap_SalesRevenueNet | $ 523,526 us-gaap_SalesRevenueNet | $ 495,491 us-gaap_SalesRevenueNet | $ 482,175 us-gaap_SalesRevenueNet | $ 447,536 us-gaap_SalesRevenueNet | $ 1,970,697 us-gaap_SalesRevenueNet | $ 1,948,728 us-gaap_SalesRevenueNet | $ 2,178,178 us-gaap_SalesRevenueNet
Gross profit | 154,787 us-gaap_GrossProfit | 150,762 us-gaap_GrossProfit | 163,041 us-gaap_GrossProfit | 154,535 us-gaap_GrossProfit | 164,738 us-gaap_GrossProfit | 150,084 us-gaap_GrossProfit | 159,588 us-gaap_GrossProfit | 140,123 us-gaap_GrossProfit | 623,125 us-gaap_GrossProfit | 614,533 us-gaap_GrossProfit | 715,147 us-gaap_GrossProfit
Operating income (loss) |  |  |  |  |  |  |  |  | 3,832 us-gaap_OperatingIncomeLoss | (135,181)us-gaap_OperatingIncomeLoss | 151,126 us-gaap_OperatingIncomeLoss
Total other income (expense) |  |  |  |  |  |  |  |  | (18,741)us-gaap_NonoperatingIncomeExpense | (13,073)us-gaap_NonoperatingIncomeExpense | (14,907)us-gaap_NonoperatingIncomeExpense
Income (loss) before income taxes |  |  |  |  |  |  |  |  | (14,909)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | (148,254)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 136,219 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Depreciation and amortization |  |  |  |  |  |  |  |  | 98,463 us-gaap_DepreciationDepletionAndAmortization | 98,845 us-gaap_DepreciationDepletionAndAmortization | 109,471 us-gaap_DepreciationDepletionAndAmortization
Electricity Operating Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 794,144 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = itri_ElectricityOperatingSegmentMember | 836,553 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = itri_ElectricityOperatingSegmentMember | 1,024,340 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = itri_ElectricityOperatingSegmentMember
Gross profit |  |  |  |  |  |  |  |  | 208,476 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = itri_ElectricityOperatingSegmentMember | 218,913 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = itri_ElectricityOperatingSegmentMember | 295,005 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = itri_ElectricityOperatingSegmentMember
Operating income (loss) |  |  |  |  |  |  |  |  | (72,476)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = itri_ElectricityOperatingSegmentMember | (235,908)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = itri_ElectricityOperatingSegmentMember | 24,812 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = itri_ElectricityOperatingSegmentMember
Depreciation and amortization |  |  |  |  |  |  |  |  | 47,886 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = itri_ElectricityOperatingSegmentMember | 46,535 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = itri_ElectricityOperatingSegmentMember | 52,113 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = itri_ElectricityOperatingSegmentMember
Gas Operating Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 599,081 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = itri_GasOperatingSegmentMember | 570,297 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = itri_GasOperatingSegmentMember | 627,193 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = itri_GasOperatingSegmentMember
Gross profit |  |  |  |  |  |  |  |  | 211,815 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = itri_GasOperatingSegmentMember | 207,915 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = itri_GasOperatingSegmentMember | 235,391 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = itri_GasOperatingSegmentMember
Operating income (loss) |  |  |  |  |  |  |  |  | 75,598 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = itri_GasOperatingSegmentMember | 83,882 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = itri_GasOperatingSegmentMember | 110,557 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = itri_GasOperatingSegmentMember
Depreciation and amortization |  |  |  |  |  |  |  |  | 26,031 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = itri_GasOperatingSegmentMember | 27,266 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = itri_GasOperatingSegmentMember | 29,968 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = itri_GasOperatingSegmentMember
Water Operating Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 577,472 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = itri_WaterOperatingSegmentMember | 541,878 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = itri_WaterOperatingSegmentMember | 526,645 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = itri_WaterOperatingSegmentMember
Gross profit |  |  |  |  |  |  |  |  | 202,834 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = itri_WaterOperatingSegmentMember | 187,705 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = itri_WaterOperatingSegmentMember | 184,751 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = itri_WaterOperatingSegmentMember
Operating income (loss) |  |  |  |  |  |  |  |  | 71,006 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = itri_WaterOperatingSegmentMember | 63,252 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = itri_WaterOperatingSegmentMember | 59,210 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = itri_WaterOperatingSegmentMember
Depreciation and amortization |  |  |  |  |  |  |  |  | 24,259 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = itri_WaterOperatingSegmentMember | 24,797 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = itri_WaterOperatingSegmentMember | 27,324 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = itri_WaterOperatingSegmentMember
Corporate, Non-Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Operating income (loss) |  |  |  |  |  |  |  |  | (70,296)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | (46,407)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | (43,453)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember
Depreciation and amortization |  |  |  |  |  |  |  |  | $ 287 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | $ 247 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember | $ 66 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateNonSegmentMember

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