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Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	$ 1,345,769	$ 1,409,172
Telecom & Payment Services [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	1,294,947	1,361,908
net2phone [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	50,822	47,264
United States [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	922,864	935,854
United States [Member] | Telecom & Payment Services [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	888,728	901,997
United States [Member] | net2phone [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	34,136	33,857
United Kingdom [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	134,351	195,682
United Kingdom [Member] | Telecom & Payment Services [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	134,339	195,661
United Kingdom [Member] | net2phone [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	12	21
Netherlands [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	210,743	192,284
Netherlands [Member] | Telecom & Payment Services [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	210,743	192,284
Netherlands [Member] | net2phone [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL
Other [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	77,811	85,352
Other [Member] | Telecom & Payment Services [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	61,137	71,966
Other [Member] | net2phone [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	16,674	13,386
Outside the United States [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	422,905	473,318
Outside the United States [Member] | Telecom & Payment Services [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	406,219	459,911
Outside the United States [Member] | net2phone [Member]
Revenue Recognition (Details) - Schedule of revenues disaggregated by geographic region [Line Items]
TOTAL	$ 16,686	$ 13,407

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- References

No definition available.

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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

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