XML 18 R53.htm IDEA: XBRL DOCUMENT
v3.19.3

Intangible Assets and Liabilities Gross Carrying Amount and Accumulated Amortization (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | $ 965,586 | $ 978,060 |  |
Intangible assets, Accumulated (Amortization) Accretion | (763,265) | (723,577) |  |
Intangible assets, Net | 202,321 | 254,483 |  |
Intangible assets, Gross | 965,586 | 981,160 | $ 996,538 | $ 769,851
Intangible assets, Net | 202,321 | 257,583 |  |
Intangible liabilities, Gross | (23,900) | (23,900) | $ (23,900) | $ 0
Intangible liabilities, Accumulated (Amortization) Accretion | 11,392 | 5,217 |  |
Intangible liabilities, Net | (12,508) | (18,683) |  |
Core-developed technology [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | 500,624 | 507,100 |  |
Intangible assets, Accumulated (Amortization) Accretion | (443,313) | (429,955) |  |
Intangible assets, Net | 57,311 | 77,145 |  |
Customer contracts and relationships [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | 375,094 | 379,614 |  |
Intangible assets, Accumulated (Amortization) Accretion | (236,824) | (212,538) |  |
Intangible assets, Net | 138,270 | 167,076 |  |
Trademarks and trade names [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | 77,848 | 78,746 |  |
Intangible assets, Accumulated (Amortization) Accretion | (71,803) | (69,879) |  |
Intangible assets, Net | 6,045 | 8,867 |  |
Other Intangible Assets [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | 12,020 | 12,600 |  |
Intangible assets, Accumulated (Amortization) Accretion | (11,325) | (11,205) |  |
Intangible assets, Net | 695 | 1,395 |  |
In Process Research and Development [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | 0 | 3,100 |  |
Intangible assets, Accumulated (Amortization) Accretion | 0 | 0 |  |
Intangible assets, Net | $ 0 | $ 3,100 |  |

X
- Definition Finite-Lived Intangible Liabilities, Accumulated Accretion + References No definition available. + Details
Name: | itri_FiniteLivedIntangibleLiabilitiesAccumulatedAccretion
Namespace Prefix: | itri_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Finite-Lived Intangible Liabilities, Net + References No definition available. + Details
Name: | itri_FiniteLivedIntangibleLiabilitiesNet
Namespace Prefix: | itri_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Finite-lived intangible liabilities, Gross + References No definition available. + Details
Name: | itri_FinitelivedintangibleliabilitiesGross
Namespace Prefix: | itri_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before accumulated amortization of intangible assets, excluding goodwill. + References No definition available. + Details
Name: | us-gaap_IntangibleAssetsGrossExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 + Details
Name: | us-gaap_IntangibleAssetsNetExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_DevelopedTechnologyRightsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TrademarksAndTradeNamesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_OtherIntangibleAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_InProcessResearchAndDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |