Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
Operating activities
Net income	$ 11,017	$ 58,018
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,333	13,381
Deferred income taxes	4,624	(13,811)
Provision for doubtful accounts receivable	1,578	1,220
Net unrealized loss (gain) from marketable securities	19,705	(508)
Stock-based compensation	1,840	1,215
Other	3,486	(4,415)
Change in assets and liabilities:
Trade accounts receivable	(8,461)	1,626
Disbursement prefunding, prepaid expenses, other current assets, and other assets	(20,504)	(7,961)
Trade accounts payable, accrued expenses, other current liabilities, and other liabilities	(2,566)	(2,154)
Customer deposits at IDT Financial Services Limited (Gibraltar-based bank)	(9,843)	(11,078)
Deferred revenue	(948)	2,611
Net cash provided by operating activities	13,261	38,144
Investing activities
Capital expenditures	(13,794)	(13,455)
Purchase of convertible preferred stock in equity method investment	(1,051)	(4,000)
Payments for acquisitions, net of cash acquired	(7,546)	(2,656)
Purchase of Rafael Holdings, Inc. Class B common stock and warrant		(5,000)
Exercise of warrant to purchase shares of Rafael Holdings, Inc. Class B common stock		(1,000)
Purchases of debt securities and equity investments	(11,277)	(39,347)
Proceeds from maturities and sales of debt securities and redemptions of equity investments	7,752	18,670
Net cash used in investing activities	(25,916)	(46,788)
Financing activities
Distributions to noncontrolling interests	(359)	(646)
Proceeds from other liabilities	2,301
Repayment of other liabilities.	(1,319)	(69)
Proceeds from borrowings under revolving credit facility	2,566
Repayment of borrowings under revolving credit facility.	(2,566)
Proceeds from sale of redeemable equity in subsidiary	10,000
Proceeds from exercise of stock options	137	686
Repurchases of Class B common stock	(12,832)	(4,192)
Net cash used in financing activities	(2,072)	(4,221)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash and cash equivalents	(14,093)	6,652
Net decrease in cash, cash equivalents, and restricted cash and cash equivalents	(28,820)	(6,213)
Cash, cash equivalents, and restricted cash and cash equivalents at beginning of period	226,916	201,222
Cash, cash equivalents, and restricted cash and cash equivalents at end of period	198,096	195,009
Supplemental schedule of non-cash investing and financing activities
Liabilities incurred for acquisitions	7,849	393
Shares of the Company’s Class B common stock issued for acquisition	1,000
Cashless exercise of stock options in exchange for shares of the Company’s Class B common stock	$ 14,930