XML 87 R38.htm IDEA: XBRL DOCUMENT
v3.20.1

Revenue Recognition (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Apr. 30, 2020 | Apr. 30, 2019 | Apr. 30, 2020 | Apr. 30, 2019
Revenue from External Customer [Line Items] |  |  |  |
Revenues, Total | $ 321,336 | $ 341,255 | $ 985,425 | $ 1,053,044
Total Telecom & Payment Services [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues, Total | 308,790 | 328,838 | 947,342 | 1,018,637
Total Telecom & Payment Services [Member] | BOSS Revolution Calling [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues, Total | 111,541 | 120,455 | 340,557 | 366,114
Total Telecom & Payment Services [Member] | Carrier Services [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues, Total | 87,306 | 120,955 | 302,482 | 391,073
Total Telecom & Payment Services [Member] | Mobile Top-Up [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues, Total | 85,109 | 67,567 | 237,741 | 197,189
Total Telecom & Payment Services [Member] | Other [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues, Total | 10,127 | 12,202 | 32,484 | 43,730
Total Telecom & Payment Services [Member] | Growth [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues, Total | 14,707 | 7,659 | 34,078 | 20,531
Total net2phone [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues, Total | 12,546 | 12,417 | 38,083 | 34,407
Total net2phone [Member] | net2phone-UCaaS [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues, Total | 8,137 | 6,651 | 23,298 | 17,483
Total net2phone [Member] | Net2phone-Platform Services [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues, Total | $ 4,409 | $ 5,766 | $ 14,785 | $ 16,924

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_EntityWideInformationRevenueFromExternalCustomerLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=idt_TelecomAndPaymentServiceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=idt_BossRevolutionCallingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=idt_WholesaleCarrierServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=idt_MobileTopUpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=idt_TotalTelecomAndPaymentServicesOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=idt_TotalTelecomAndPaymentServicesGrowthMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=idt_NetTwoPhoneUnifiedCommunicationsAsServiceSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=idt_NetTwoPhoneUnifiedCommunicationsAsServiceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=idt_Net2PhonePlatformServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |