Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jan. 31, 2025	Jan. 31, 2024
Cash flows from operating activities:
Net income	$ 747,717	$ 658,059
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization, including debt cost	109,122	88,485
Allowance for credit losses	1,056	3,702
Equity in losses of unconsolidated affiliates	(61)	(5,402)
Stock-based compensation	19,732	17,676
Gain on sale of property and equipment	(194)	(971)
Deferred income taxes	47	(2,103)
Changes in operating assets and liabilities:
Accounts receivable	(133,024)	(169,508)
Vehicle pooling costs	(10,675)	(14,387)
Inventories	(16,175)	(2,994)
Prepaid expenses, other current and non-current assets	4,976	(35,040)
Operating lease right-of-use assets and lease liabilities	614	865
Accounts payable and accrued liabilities	44,765	6,556
Deferred revenue	(1,066)	(13)
Income taxes receivable	(48,239)	(10,463)
Income taxes payable	(58,194)	2,577
Net cash provided by operating activities	660,401	537,039
Cash flows from investing activities:
Purchases of property and equipment	(353,399)	(285,289)
Purchase of assets and liabilities in connection with acquisitions	(1,213)
Purchase of assets and liabilities in connection with acquisitions		17,662
Proceeds from sale of property and equipment	662	2,069
Purchases of held to maturity securities	(458,542)	(1,411,122)
Proceeds from held to maturity securities	1,940,000	1,430,000
Investment in unconsolidated affiliate	0	(1,000)
Net cash provided by (used in) investing activities	1,127,508	(247,680)
Cash flows from financing activities:
Proceeds from the exercise of stock options	32,833	13,482
Proceeds from the issuance of Employee Stock Purchase Plan shares	7,404	5,961
Payments for employee stock-based tax withholdings	(2,484)	(2,164)
Principal payments on revolver facility	0	(10,820)
Payments of finance lease obligations	(40)	(11)
Net cash provided by financing activities	37,713	6,448
Effect of foreign currency translation	(824)	3,746
Net increase in cash, cash equivalents, and restricted cash	1,824,798	299,553
Cash, cash equivalents, and restricted cash at beginning of period	1,514,111	957,395
Cash, cash equivalents, and restricted cash at end of period	3,338,909	1,256,948
Supplemental disclosure of cash flow information:
Interest paid	1,371	2,036
Income taxes paid, net of refunds	277,051	188,480
Purchase of property and equipment through settlement of deposit	$ 57,453	$ 0