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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

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+ References

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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

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

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