Schedule of Revenues Disaggregated by Geographic Region (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 1,238,854	$ 1,364,057	$ 1,446,990
Fintech [Member]
Disaggregation of Revenue [Line Items]
Revenues	86,610	64,593	57,620
National Retail Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	77,115	51,299	24,748
Net2phone [Member]
Disaggregation of Revenue [Line Items]
Revenues	72,388	58,185	44,502
Traditional Communications [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,002,741	1,189,980	1,320,120
UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	892,220	973,535	1,130,978
UNITED STATES | Fintech [Member]
Disaggregation of Revenue [Line Items]
Revenues	83,883	62,598	57,347
UNITED STATES | National Retail Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	77,115	51,299	24,748
UNITED STATES | Net2phone [Member]
Disaggregation of Revenue [Line Items]
Revenues	38,029	30,283	23,093
UNITED STATES | Traditional Communications [Member]
Disaggregation of Revenue [Line Items]
Revenues	693,193	829,355	1,025,790
UNITED KINGDOM
Disaggregation of Revenue [Line Items]
Revenues	267,697	311,847	241,590
UNITED KINGDOM | Fintech [Member]
Disaggregation of Revenue [Line Items]
Revenues
UNITED KINGDOM | National Retail Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues
UNITED KINGDOM | Net2phone [Member]
Disaggregation of Revenue [Line Items]
Revenues
UNITED KINGDOM | Traditional Communications [Member]
Disaggregation of Revenue [Line Items]
Revenues	267,697	311,847	241,590
Others [Member]
Disaggregation of Revenue [Line Items]
Revenues	78,937	78,675	74,422
Others [Member] | Fintech [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,727	1,995	273
Others [Member] | National Retail Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues
Others [Member] | Net2phone [Member]
Disaggregation of Revenue [Line Items]
Revenues	34,359	27,902	21,409
Others [Member] | Traditional Communications [Member]
Disaggregation of Revenue [Line Items]
Revenues	41,851	48,778	52,740
Non-US [Member]
Disaggregation of Revenue [Line Items]
Revenues	346,634	390,522	316,012
Non-US [Member] | Fintech [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,727	1,995	273
Non-US [Member] | National Retail Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues
Non-US [Member] | Net2phone [Member]
Disaggregation of Revenue [Line Items]
Revenues	34,359	27,902	21,409
Non-US [Member] | Traditional Communications [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 309,548	$ 360,625	$ 294,330