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GENERAL (Business Combinations and Impairment of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Business Acquisition [Line Items] |  |  |
Impairment loss | $ 0 us-gaap_GoodwillImpairmentLoss | $ 0 us-gaap_GoodwillImpairmentLoss | $ 23,931 us-gaap_GoodwillImpairmentLoss
Wavestream Corporation [Member] |  |  |
Business Acquisition [Line Items] |  |  |
Impairment loss | 0 us-gaap_GoodwillImpairmentLoss / us-gaap_BusinessAcquisitionAxis = gilt_WavestreamCorporationMember | 0 us-gaap_GoodwillImpairmentLoss / us-gaap_BusinessAcquisitionAxis = gilt_WavestreamCorporationMember | 23,931 us-gaap_GoodwillImpairmentLoss / us-gaap_BusinessAcquisitionAxis = gilt_WavestreamCorporationMember
Impairment of intangible assets | $ 7,948 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill / us-gaap_BusinessAcquisitionAxis = gilt_WavestreamCorporationMember |  |

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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
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