<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.19.2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>103</ContextCount>
  <ElementCount>278</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>35</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>5</UnitCount>
  <MyReports>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00000001 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-daei</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00000002 - Statement - CONDENSED INTERIM CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-cbs</Role>
      <ShortName>CONDENSED INTERIM CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00000003 - Statement - CONDENSED INTERIM CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/CondensedInterimConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONDENSED INTERIM CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00000004 - Statement - CONDENSED INTERIM CONSOLIDATED STATEMENTS OF INCOME (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-csoo</Role>
      <ShortName>CONDENSED INTERIM CONSOLIDATED STATEMENTS OF INCOME (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00000005 - Statement - CONDENSED INTERIM CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-csocl</Role>
      <ShortName>CONDENSED INTERIM CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00000006 - Statement - CONDENSED INTERIM CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/CondensedInterimConsolidatedStatementsOfChangesInShareholdersEquity</Role>
      <ShortName>CONDENSED INTERIM CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>00000007 - Statement - CONDENSED INTERIM CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/CondensedInterimConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONDENSED INTERIM CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>00000008 - Disclosure - GENERAL</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-g1</Role>
      <ShortName>GENERAL</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>00000009 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-sap1</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>00000010 - Disclosure - INVENTORIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/Inventories</Role>
      <ShortName>INVENTORIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>00000011 - Disclosure - PROPERTY AND EQUIPMENT, NET</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-paen</Role>
      <ShortName>PROPERTY AND EQUIPMENT, NET</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>00000012 - Disclosure - DEFERRED REVENUE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/DeferredRevenue</Role>
      <ShortName>DEFERRED REVENUE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>00000013 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-cac</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>00000014 - Disclosure - LEASES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/Leases</Role>
      <ShortName>LEASES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>00000015 - Disclosure - DERIVATIVE INSTRUMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/DerivativeInstruments</Role>
      <ShortName>DERIVATIVE INSTRUMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>00000016 - Disclosure - SHAREHOLDERS' EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-e</Role>
      <ShortName>SHAREHOLDERS' EQUITY</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>00000017 - Disclosure - COMPERHENSIVE INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/ComperhensiveIncome</Role>
      <ShortName>COMPERHENSIVE INCOME</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>00000018 - Disclosure - EARNINGS PER SHARE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/EarningsPerShare</Role>
      <ShortName>EARNINGS PER SHARE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>00000019 - Disclosure - CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-cgasi1</Role>
      <ShortName>CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>00000020 - Disclosure - RELATED PARTY BALANCES AND TRANSACTIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-rpbat</Role>
      <ShortName>RELATED PARTY BALANCES AND TRANSACTIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>00000021 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-sapp1</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>00000022 - Disclosure - INVENTORIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-it</Role>
      <ShortName>INVENTORIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://gilat.com/role/Inventories</ParentRole>
      <Position>22</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>00000023 - Disclosure - PROPERTY AND EQUIPMENT, NET (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-paent</Role>
      <ShortName>PROPERTY AND EQUIPMENT, NET (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-paen</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>00000024 - Disclosure - LEASES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/LeasesTables</Role>
      <ShortName>LEASES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://gilat.com/role/Leases</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>00000025 - Disclosure - SHAREHOLDERS' EQUITY (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-et</Role>
      <ShortName>SHAREHOLDERS' EQUITY (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-e</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>00000026 - Disclosure - COMPERHENSIVE INCOME (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/ComperhensiveIncomeTables</Role>
      <ShortName>COMPERHENSIVE INCOME (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://gilat.com/role/ComperhensiveIncome</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>00000027 - Disclosure - EARNINGS PER SHARE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/EarningsPerShareTables</Role>
      <ShortName>EARNINGS PER SHARE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://gilat.com/role/EarningsPerShare</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>00000028 - Disclosure - CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-cgasit1</Role>
      <ShortName>CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-cgasi1</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>00000029 - Disclosure - RELATED PARTY BALANCES AND TRANSACTIONS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-rpbatt</Role>
      <ShortName>RELATED PARTY BALANCES AND TRANSACTIONS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-rpbat</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>00000030 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-sapnd</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-sapp1</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>00000031 - Disclosure - INVENTORIES (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-ind</Role>
      <ShortName>INVENTORIES (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-it</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>00000032 - Disclosure - INVENTORIES (Schedule of Inventory) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/InventoriesScheduleOfInventoryDetails</Role>
      <ShortName>INVENTORIES (Schedule of Inventory) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-it</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>00000033 - Disclosure - PROPERTY AND EQUIPMENT, NET (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-paennd</Role>
      <ShortName>PROPERTY AND EQUIPMENT, NET (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-paent</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>00000034 - Disclosure - PROPERTY AND EQUIPMENT, NET (Schedule of Property and Equipment) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-paensopaed</Role>
      <ShortName>PROPERTY AND EQUIPMENT, NET (Schedule of Property and Equipment) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-paent</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>00000035 - Disclosure - DEFERRED REVENUE (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/DeferredRevenueNarrativeDetails</Role>
      <ShortName>DEFERRED REVENUE (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/DeferredRevenue</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>00000036 - Disclosure - COMMITMENTS AND CONTINGENCIES (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-cacnd</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-cac</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>00000037 - Disclosure - LEASES (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/LeasesNarrativeDetails</Role>
      <ShortName>LEASES (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/LeasesTables</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>00000038 - Disclosure - LEASES (Schedule of Maturities of Lease Liabilities) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/LeasesScheduleOfMaturitiesOfLeaseLiabilitiesDetails</Role>
      <ShortName>LEASES (Schedule of Maturities of Lease Liabilities) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/LeasesTables</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>00000039 - Disclosure - DERIVATIVE INSTRUMENTS (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-disofvodid</Role>
      <ShortName>DERIVATIVE INSTRUMENTS (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/DerivativeInstruments</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>00000040 - Disclosure - SHAREHOLDERS' EQUITY (Share Capital) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/ShareholdersEquityShareCapitalDetails</Role>
      <ShortName>SHAREHOLDERS' EQUITY (Share Capital) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-et</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>00000041 - Disclosure - SHAREHOLDERS' EQUITY (Description of Plans) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-edopd</Role>
      <ShortName>SHAREHOLDERS' EQUITY (Description of Plans) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-et</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>00000042 - Disclosure - SHAREHOLDERS' EQUITY (Schedule of Stock Option Activity) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-esosoad</Role>
      <ShortName>SHAREHOLDERS' EQUITY (Schedule of Stock Option Activity) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-et</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>00000043 - Disclosure - COMPERHENSIVE INCOME (Schedule of Accumulated Other Comprehensive Income, Net) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-sapsoaocind</Role>
      <ShortName>COMPERHENSIVE INCOME (Schedule of Accumulated Other Comprehensive Income, Net) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/ComperhensiveIncomeTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>00000044 - Disclosure - EARNINGS PER SHARE (Schedule of Earnings (Loss) Per Share) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/EarningsPerShareScheduleOfEarningsLossPerShareDetails</Role>
      <ShortName>EARNINGS PER SHARE (Schedule of Earnings (Loss) Per Share) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/EarningsPerShareTables</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>00000045 - Disclosure - CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION (Schedule of Financial Data for Reportable Operating Segments) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-cgasisofdfrosd</Role>
      <ShortName>CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION (Schedule of Financial Data for Reportable Operating Segments) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-cgasit1</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>00000046 - Disclosure - CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION (Schedule of Revenue by geographic areas) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/CustomersGeographicAndSegmentInformationScheduleOfRevenueByGeographicAreasDetails</Role>
      <ShortName>CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION (Schedule of Revenue by geographic areas) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-cgasit1</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>00000047 - Disclosure - CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION (Schedule of long-lived assets) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/CustomersGeographicAndSegmentInformationScheduleOfLong-livedAssetsDetails</Role>
      <ShortName>CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION (Schedule of long-lived assets) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-cgasit1</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>00000048 - Disclosure - CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION (Schedule of Revenues from Major Customers) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/CustomersGeographicAndSegmentInformationScheduleOfRevenuesFromMajorCustomersDetails</Role>
      <ShortName>CUSTOMERS, GEOGRAPHIC AND SEGMENT INFORMATION (Schedule of Revenues from Major Customers) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-cgasit1</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>00000049 - Disclosure - RELATED PARTY BALANCES AND TRANSACTIONS (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-rpbatnd</Role>
      <ShortName>RELATED PARTY BALANCES AND TRANSACTIONS (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-rpbatt</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>00000050 - Disclosure - RELATED PARTY BALANCES AND TRANSACTIONS (Schedule of Transactions with Related Parties) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-rpbatsotwrpd</Role>
      <ShortName>RELATED PARTY BALANCES AND TRANSACTIONS (Schedule of Transactions with Related Parties) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-rpbatt</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="gilt-20190630.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>00000051 - Disclosure - RELATED PARTY BALANCES AND TRANSACTIONS (Schedule of Balances with Related Parties) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://gilat.com/role/gilt-rpbatsobwrpd</Role>
      <ShortName>RELATED PARTY BALANCES AND TRANSACTIONS (Schedule of Balances with Related Parties) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://gilat.com/role/gilt-rpbatt</ParentRole>
      <Position>51</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>gilt-20190630.xml</File>
    <File>gilt-20190630.xsd</File>
    <File>gilt-20190630_cal.xml</File>
    <File>gilt-20190630_def.xml</File>
    <File>gilt-20190630_lab.xml</File>
    <File>gilt-20190630_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://fasb.org/srt/2019-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/invest/2013-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2019-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/us-gaap/2019-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/country/2017-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
