v2.4.1.9

Restructuring Restructuring (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
Restructuring Project [Line Items] |
Schedule of Restructuring Reserve by Type of Cost [Table Text Block] | The following table summarizes the activity within the restructuring related balance sheet accounts, for the 2014 and 2013 Projects, during the year ended December 31, 2014:
| Accrued Employee Severance |  | Asset Impairments & Net (Gain) Loss on Sale or Disposal |  | Other Accrued Costs |  | Total
| (in thousands)
Beginning balance, January 1, 2014 | $ | 32,709 |  |  | $ | — |  |  | $ | 3,632 |  |  | $ | 36,341 |
Costs incurred and charged to expense | 41,952 |  |  | 5,220 |  |  | 3,685 |  |  | 50,857 |
Cash payments | (12,732 | ) |  | — |  |  | (3,581 | ) |  | (16,313 | )
Non-cash items | — |  |  | (5,220 | ) |  | — |  |  | (5,220 | )
Effect of change in exchange rates | (2,596 | ) |  | — |  |  | (210 | ) |  | (2,806 | )
Ending balance, December 31, 2014 | $ | 59,333 |  |  | $ | — |  |  | $ | 3,526 |  |  | $ | 62,859 |
Fair Value Measurements, Nonrecurring [Table Text Block] | The following table includes long-lived assets held and used that were measured at fair value on a nonrecurring basis as of December 31, 2014 and 2013, and the related recognized losses for the years ended December 31, 2014 and 2013:
| Net Carrying Value |  | Fair Value Measurement (Level 3) |  | Total Loss Recognized
| (in thousands)
2014 |  |  |  |  |
Long-lived assets held and used | $ | 1,930 |  |  | $ | 1,930 |  |  | $ | 7,952 |
2013 |  |  |  |  |
Long-lived assets held and used | $ | — |  |  | $ | — |  |  | $ | — |
2014 Project [Member] |
Restructuring Project [Line Items] |
Restructuring and Related Costs [Table Text Block] | The total expected restructuring costs, the restructuring costs recognized during the year ended December 31, 2014, and the remaining expected restructuring costs as of December 31, 2014 are as follows:
| Total Expected Costs at December 31, 2014 |  | Costs Recognized During the Year Ended December 31, 2014 |  | Remaining Costs to be Recognized at December 31, 2014
| (in thousands)
Employee severance costs | $ | 47,447 |  |  | $ | 47,447 |  |  | $ | — |
Asset impairments | 7,952 |  |  | 7,952 |  |  | — |
Other restructuring costs | 11,254 |  |  | 401 |  |  | 10,853 |
Total | $ | 66,653 |  |  | $ | 55,800 |  |  | $ | 10,853 |
Segments: |  |  |  |  |
Electricity | $ | 39,730 |  |  | $ | 29,660 |  |  | $ | 10,070 |
Gas | 12,455 |  |  | 12,185 |  |  | 270 |
Water | 1,145 |  |  | 1,106 |  |  | 39 |
Corporate unallocated | 13,323 |  |  | 12,849 |  |  | 474 |
Total | $ | 66,653 |  |  | $ | 55,800 |  |  | $ | 10,853 |
2013 Project [Member] |
Restructuring Project [Line Items] |
Restructuring and Related Costs [Table Text Block] | The total expected restructuring costs, the costs recognized in prior periods, the restructuring costs recognized during the year ended December 31, 2014, and the remaining expected restructuring costs as of December 31, 2014 were as follows:
| Total Expected Costs at December 31, 2014 |  | Costs Recognized in Prior Periods |  | Costs Recognized During the Year Ended December 31, 2014 |  | Remaining Costs to be Recognized at December 31, 2014
| (in thousands)
Employee severance costs | $ | 23,691 |  |  | $ | 29,186 |  |  | $ | (5,495 | ) |  | $ | — |
Asset impairments | (1,500 | ) |  | 1,232 |  |  | (2,732 | ) |  | — |
Other restructuring costs | 3,965 |  |  | 681 |  |  | 3,284 |  |  | — |
Total | $ | 26,156 |  |  | $ | 31,099 |  |  | $ | (4,943 | ) |  | $ | — |
Segments: |  |  |  |  |  |  |
Electricity | $ | 15,512 |  |  | $ | 24,056 |  |  | $ | (8,544 | ) |  | $ | — |
Gas | 1,375 |  |  | 4,369 |  |  | (2,994 | ) |  | — |
Water | 3,130 |  |  | 1,957 |  |  | 1,173 |  |  | — |
Corporate unallocated | 6,139 |  |  | 717 |  |  | 5,422 |  |  | — |
Total | $ | 26,156 |  |  | $ | 31,099 |  |  | $ | (4,943 | ) |  | $ | — |

X
- Details
Name: | itri_RestructuringProjectLineItems
Namespace Prefix: | itri_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19296-110258 + Details
Name: | us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
Name: | us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's restructuring reserve by type of cost and in total, and explanation of changes that occurred in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(2)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
Name: | us-gaap_ScheduleOfRestructuringReserveByTypeOfCostTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RestructuringPlanAxis=itri_A2013ProjectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringPlanAxis=itri_A2014ProjectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |