v2.4.1.9

Commitments and Contingencies Available Lines of Credit, Outstanding Standby Letter of Credits, and Bonds (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Credit Facility [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Multicurrency revolving line of credit | $ 660,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_CreditFacilityMember | [1] | $ 660,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_CreditFacilityMember | [1]
Long-term borrowings | (91,469)us-gaap_LineOfCredit / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_CreditFacilityMember | [1] | (120,000)us-gaap_LineOfCredit / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_CreditFacilityMember | [1]
Standby LOCs issued and outstanding | (50,399)us-gaap_LettersOfCreditOutstandingAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_CreditFacilityMember | [1] | (49,491)us-gaap_LettersOfCreditOutstandingAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_CreditFacilityMember | [1]
Net available for additional borrowings and LOCs | 518,132 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_CreditFacilityMember | [1] | 490,509 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_CreditFacilityMember | [1]
Unsecured Multicurrency Revolving Lines of Credit [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Multicurrency revolving line of credit | 106,855 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_UnsecuredMulticurrencyRevolvingLinesOfCreditMember |  | 115,269 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_UnsecuredMulticurrencyRevolvingLinesOfCreditMember |
Standby LOCs issued and outstanding | (28,636)us-gaap_LettersOfCreditOutstandingAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_UnsecuredMulticurrencyRevolvingLinesOfCreditMember |  | (31,714)us-gaap_LettersOfCreditOutstandingAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_UnsecuredMulticurrencyRevolvingLinesOfCreditMember |
Short-term borrowings(2) | (4,282)us-gaap_ShortTermBorrowings / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_UnsecuredMulticurrencyRevolvingLinesOfCreditMember | [2] | (4,252)us-gaap_ShortTermBorrowings / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_UnsecuredMulticurrencyRevolvingLinesOfCreditMember | [2]
Net available for additional borrowings and LOCs | 73,937 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_UnsecuredMulticurrencyRevolvingLinesOfCreditMember |  | 79,303 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_LossContingenciesByNatureOfContingencyAxis = itri_UnsecuredMulticurrencyRevolvingLinesOfCreditMember |
Surety Bond [Member] |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Unsecured surety bonds in force | $ 116,306 us-gaap_GuaranteeObligationsCurrentCarryingValue / us-gaap_GuaranteeObligationsByNatureAxis = us-gaap_SuretyBondMember |  | $ 186,446 us-gaap_GuaranteeObligationsCurrentCarryingValue / us-gaap_GuaranteeObligationsByNatureAxis = us-gaap_SuretyBondMember |
[1] | Refer to Note 6 for details regarding our secured credit facilities.
[2] | Short-term borrowings are included in “Other current liabilities” on the Consolidated Balance Sheets.

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- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),16(a)(1)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Subparagraph a(1) -Article 7 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 13 -Subparagraph 2, 3 -Article 9 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Balance Type: |
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- Details
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