XML 18 R33.htm IDEA: XBRL DOCUMENT v2.4.1.9
Sale of Interest in Fabrix Systems Ltd. (Details Textual) (USD $)
3 Months Ended 9 Months Ended 0 Months Ended 1 Months Ended
Apr. 30, 2015
Apr. 30, 2014
Apr. 30, 2015
Apr. 30, 2014
Oct. 08, 2014
Jun. 30, 2015
Jul. 31, 2014
Sale of Interest in Fabrix Systems Ltd (Textual)              
Receivable from sale of interest in Fabrix Systems Ltd. $ 31,686,000idt_ReceivableFromDivestitureOfInterestInConsolidatedSubsidiaries   $ 31,686,000idt_ReceivableFromDivestitureOfInterestInConsolidatedSubsidiaries         
Gain on sale of interest in Fabrix Systems Ltd. 1,235,000us-gaap_GainOrLossOnSaleOfStockInSubsidiary    76,864,000us-gaap_GainOrLossOnSaleOfStockInSubsidiary         
Cash received from divestiture of interest in consolidated subsidiaries parent only portion     36,455,000idt_CashReceivedFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion         
Fabrix Subsidiary [Member]              
Sale of Interest in Fabrix Systems Ltd (Textual)              
Common stock sold to Ericsson         95,000,000us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries
/ us-gaap_StatementBusinessSegmentsAxis
= idt_FabrixSubsidiaryMember
   
Sale of stock to Ericsson in percentage         100.00%idt_MinorityInterestCombinedOwnershipPercentageByParentAndNonControllingInterests
/ us-gaap_StatementBusinessSegmentsAxis
= idt_FabrixSubsidiaryMember
   
Company owns in Fabrix in percentage         78.00%us-gaap_SaleOfStockPercentageOfOwnershipBeforeTransaction
/ us-gaap_StatementBusinessSegmentsAxis
= idt_FabrixSubsidiaryMember
   
Escrow deposit         13,000,000us-gaap_EscrowDeposit
/ us-gaap_StatementBusinessSegmentsAxis
= idt_FabrixSubsidiaryMember
   
Gain on sale of interest in Fabrix Systems Ltd. 1,200,000us-gaap_GainOrLossOnSaleOfStockInSubsidiary
/ us-gaap_StatementBusinessSegmentsAxis
= idt_FabrixSubsidiaryMember
      76,900,000us-gaap_GainOrLossOnSaleOfStockInSubsidiary
/ us-gaap_StatementBusinessSegmentsAxis
= idt_FabrixSubsidiaryMember
   
Proceeds from divestiture of interest in consolidated subsidiaries         68,100,000idt_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion
/ us-gaap_StatementBusinessSegmentsAxis
= idt_FabrixSubsidiaryMember
   
Cash received from divestiture of interest in consolidated subsidiaries parent only portion     36,400,000idt_CashReceivedFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion
/ us-gaap_StatementBusinessSegmentsAxis
= idt_FabrixSubsidiaryMember
       
Other receivables 31,700,000us-gaap_OtherReceivables
/ us-gaap_StatementBusinessSegmentsAxis
= idt_FabrixSubsidiaryMember
  31,700,000us-gaap_OtherReceivables
/ us-gaap_StatementBusinessSegmentsAxis
= idt_FabrixSubsidiaryMember
       
Fabrix Subsidiary [Member] | Subsequent Event [Member]              
Sale of Interest in Fabrix Systems Ltd (Textual)              
Cash received from divestiture of interest in consolidated subsidiaries parent only portion           $ 23,200,000idt_CashReceivedFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion
/ us-gaap_StatementBusinessSegmentsAxis
= idt_FabrixSubsidiaryMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember