Income Tax and New Jersey Corporation Business Tax	9 Months Ended
Apr. 30, 2018
Income Tax and New Jersey Corporation Business Tax [Abstract]
Income Tax and New Jersey Corporation Business Tax	Note 14—Income Tax and New Jersey Corporation Business Tax Tax Cuts and Jobs Act On December 22, 2017, the U.S. government enacted “An Act to Provide for Reconciliation Pursuant to Titles II and V of the Concurrent Resolution on the Budget for Fiscal Year 2018”, which is commonly referred to as “The Tax Cuts and Jobs Act” (the “Tax Act”). The Tax Act reduces the U.S. federal statutory corporate tax rate from 35.0% to 21.0% effective January 1, 2018, requires companies to pay a one-time repatriation tax on earnings of certain foreign subsidiaries that were previously tax deferred (“transition tax”), and makes other changes to the U.S. income tax code. Due to the Company’s July 31 fiscal year-end, the lower corporate income tax rate is phased in, resulting in a blended U.S. federal statutory tax rate of approximately 26.9% for the Company’s fiscal year ending July 31, 2018, and 21.0% for the Company’s fiscal years thereafter. On December 22, 2017, the SEC issued Staff Accounting Bulletin No. 118 (“SAB 118”), expressing its views regarding the Financial Accounting Standards Board (“FASB”)’s Accounting Standards Codification 740, Income Taxes, in the reporting period that includes the enactment date of the Tax Act. SAB 118 recognizes that a registrant’s review of certain income tax effects of the Tax Act may be incomplete at the time financial statements are issued for the reporting period that includes the enactment date, including interim periods therein. Specifically, SAB 118 allows a company to report provisional estimates in the reporting period that includes the enactment date if the company does not have the necessary information available, prepared, or fully analyzed for certain income tax effects of the Tax Act. The provisional estimates would be adjusted during a measurement period not to exceed 12 months from the enactment date of the Tax Act, at which time the accounting for the income tax effects of the Tax Act is required to be completed. As of April 30, 2018, the Company had not completed its accounting for the income tax effects of the Tax Act; however, the Company had made a reasonable estimate of the effect on its existing AMT credit carry-over. Because the AMT credit will be refundable if not utilized in the next four years, the Company reversed the valuation allowance that offset the AMT credit. As a result, in the nine months ended April 30, 2018, the Company recorded a noncurrent receivable and an income tax benefit of $3.3 million for the anticipated refund. The reduction in the corporate tax rate is not expected to impact the Company’s results of operations or financial position in the foreseeable future because the income tax benefit from the reduced tax rate will be offset by the valuation allowance. The transition tax is based on total post-1986 earnings and profits which were previously deferred from U.S. income taxes. The Company expects to utilize net operating loss carryforwards to offset any transition tax that it may incur. Therefore, the Company did not record any provisional income tax expense for the transition tax for its foreign subsidiaries. At April 30, 2018, the undistributed earnings of the Company’s foreign subsidiaries continued to be permanently reinvested. The Company is currently reevaluating the need to repatriate future earnings of its foreign subsidiaries due to the reduction in cash, cash equivalents, and marketable securities because of the Rafael Spin-Off. The Company has not provided for additional income or withholding taxes for the undistributed earnings or for any additional outside basis differences with respect to the foreign entities. The Company continues to review the anticipated impacts of the global intangible low taxed income (“GILTI”) and base erosion anti-abuse tax (“BEAT”), which are not effective until August 1, 2018. The Company has not recorded any impact associated with either GILTI or BEAT in the nine months ended April 30, 2018. The Company anticipates that its assumptions and estimates may change as a result of future guidance and interpretation from the Internal Revenue Service, the SEC, the FASB, and various other taxing jurisdictions. In particular, the Company anticipates that the U.S. state jurisdictions will continue to determine and announce their conformity or decoupling from the Tax Act, either in its entirety or with respect to specific provisions. Legislative and interpretive actions could result in adjustments to the Company’s provisional estimates when the accounting for the income tax effects of the Tax Act is completed. The Company will continue to evaluate the impact of the Tax Act on its financial statements, and will record the effect of any reasonable changes in its estimates and adjustments. Elmion Netherlands B.V. Deferred Tax Assets In the nine months ended April 30, 2017, the Company determined that its valuation allowance on the losses of Elmion Netherlands B.V., a Netherlands subsidiary, was no longer required due to an internal reorganization that generated income and a projection of income in future periods. The Company recorded a benefit from income taxes of $16.6 million in the nine months ended April 30, 2017 from the full recognition of the Elmion Netherlands B.V. deferred tax assets. New Jersey Corporation Business Tax In September 2017, the Company, IDT Domestic Telecom, Inc. (a subsidiary of the Company) and certain other affiliates, were certified by the New Jersey Economic Development Authority as having met all of the requirements of the Grow New Jersey Assistance Act Tax Credit Program. The corporation business tax credits to be received are a maximum of $21.1 million. The Company may claim a tax credit each tax year for ten years beginning in 2017. The tax credit can be applied to 100% of the Company’s New Jersey tax liability each year, and the unused amount of the annual credit can be carried forward. In addition, the Company may apply for a tax credit transfer certificate to sell unused tax credits to another business. The tax credits must be sold for no less than 75% of the value of the tax credits. The tax credits are subject to reduction, forfeiture and recapture if, among other things, the number of full-time employees declines below the program or statewide minimum.

Note 14—Income Tax and New Jersey Corporation Business Tax

Tax Cuts and Jobs Act

On December 22, 2017, the U.S. government enacted “An Act to Provide for Reconciliation Pursuant to Titles II and V of the Concurrent Resolution on the Budget for Fiscal Year 2018”, which is commonly referred to as “The Tax Cuts and Jobs Act” (the “Tax Act”). The Tax Act reduces the U.S. federal statutory corporate tax rate from 35.0% to 21.0% effective January 1, 2018, requires companies to pay a one-time repatriation tax on earnings of certain foreign subsidiaries that were previously tax deferred (“transition tax”), and makes other changes to the U.S. income tax code. Due to the Company’s July 31 fiscal year-end, the lower corporate income tax rate is phased in, resulting in a blended U.S. federal statutory tax rate of approximately 26.9% for the Company’s fiscal year ending July 31, 2018, and 21.0% for the Company’s fiscal years thereafter.

On December 22, 2017, the SEC issued Staff Accounting Bulletin No. 118 (“SAB 118”), expressing its views regarding the Financial Accounting Standards Board (“FASB”)’s Accounting Standards Codification 740, Income Taxes, in the reporting period that includes the enactment date of the Tax Act. SAB 118 recognizes that a registrant’s review of certain income tax effects of the Tax Act may be incomplete at the time financial statements are issued for the reporting period that includes the enactment date, including interim periods therein. Specifically, SAB 118 allows a company to report provisional estimates in the reporting period that includes the enactment date if the company does not have the necessary information available, prepared, or fully analyzed for certain income tax effects of the Tax Act. The provisional estimates would be adjusted during a measurement period not to exceed 12 months from the enactment date of the Tax Act, at which time the accounting for the income tax effects of the Tax Act is required to be completed.

As of April 30, 2018, the Company had not completed its accounting for the income tax effects of the Tax Act; however, the Company had made a reasonable estimate of the effect on its existing AMT credit carry-over. Because the AMT credit will be refundable if not utilized in the next four years, the Company reversed the valuation allowance that offset the AMT credit. As a result, in the nine months ended April 30, 2018, the Company recorded a noncurrent receivable and an income tax benefit of $3.3 million for the anticipated refund. The reduction in the corporate tax rate is not expected to impact the Company’s results of operations or financial position in the foreseeable future because the income tax benefit from the reduced tax rate will be offset by the valuation allowance.

The transition tax is based on total post-1986 earnings and profits which were previously deferred from U.S. income taxes. The Company expects to utilize net operating loss carryforwards to offset any transition tax that it may incur. Therefore, the Company did not record any provisional income tax expense for the transition tax for its foreign subsidiaries. At April 30, 2018, the undistributed earnings of the Company’s foreign subsidiaries continued to be permanently reinvested. The Company is currently reevaluating the need to repatriate future earnings of its foreign subsidiaries due to the reduction in cash, cash equivalents, and marketable securities because of the Rafael Spin-Off. The Company has not provided for additional income or withholding taxes for the undistributed earnings or for any additional outside basis differences with respect to the foreign entities. The Company continues to review the anticipated impacts of the global intangible low taxed income (“GILTI”) and base erosion anti-abuse tax (“BEAT”), which are not effective until August 1, 2018. The Company has not recorded any impact associated with either GILTI or BEAT in the nine months ended April 30, 2018.

The Company anticipates that its assumptions and estimates may change as a result of future guidance and interpretation from the Internal Revenue Service, the SEC, the FASB, and various other taxing jurisdictions. In particular, the Company anticipates that the U.S. state jurisdictions will continue to determine and announce their conformity or decoupling from the Tax Act, either in its entirety or with respect to specific provisions. Legislative and interpretive actions could result in adjustments to the Company’s provisional estimates when the accounting for the income tax effects of the Tax Act is completed. The Company will continue to evaluate the impact of the Tax Act on its financial statements, and will record the effect of any reasonable changes in its estimates and adjustments.

Elmion Netherlands B.V. Deferred Tax Assets

In the nine months ended April 30, 2017, the Company determined that its valuation allowance on the losses of Elmion Netherlands B.V., a Netherlands subsidiary, was no longer required due to an internal reorganization that generated income and a projection of income in future periods. The Company recorded a benefit from income taxes of $16.6 million in the nine months ended April 30, 2017 from the full recognition of the Elmion Netherlands B.V. deferred tax assets.

New Jersey Corporation Business Tax

In September 2017, the Company, IDT Domestic Telecom, Inc. (a subsidiary of the Company) and certain other affiliates, were certified by the New Jersey Economic Development Authority as having met all of the requirements of the Grow New Jersey Assistance Act Tax Credit Program. The corporation business tax credits to be received are a maximum of $21.1 million. The Company may claim a tax credit each tax year for ten years beginning in 2017. The tax credit can be applied to 100% of the Company’s New Jersey tax liability each year, and the unused amount of the annual credit can be carried forward. In addition, the Company may apply for a tax credit transfer certificate to sell unused tax credits to another business. The tax credits must be sold for no less than 75% of the value of the tax credits. The tax credits are subject to reduction, forfeiture and recapture if, among other things, the number of full-time employees declines below the program or statewide minimum.