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Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jan. 31, 2020 | Jan. 31, 2019
Statement of Cash Flows [Abstract] |  |
Net income (Loss), Including Portion Attributable to Noncontrolling Interest | $ 386,887 | $ 245,456
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization, including debt cost | 48,097 | 42,487
Allowance for doubtful accounts | 1,301 | 96
Equity in losses (earnings) of unconsolidated affiliates | 3,124 | (514)
Stock-based compensation | 11,674 | 11,950
Gain on sale of property and equipment | (1,315) | (3,890)
Deferred income taxes | 6,719 | 6,632
Changes in operating assets and liabilities: |  |
Accounts receivable | (78,510) | (86,125)
Vehicle pooling costs | (13,921) | (20,218)
Inventories | 2,765 | (11,640)
Prepaid expenses and other current and non-current assets | 7,184 | (725)
Operating Lease, Payments, Use | (331) | 0
Accounts payable and accrued liabilities | 24,862 | 7,338
Deferred revenue | 1,021 | 2,843
Income taxes receivable | (48,722) | 15,286
Income taxes payable | 5,794 | 6,890
Other liabilities | (371) | (662)
Net Cash Provided by (Used in) Operating Activities | 356,920 | 215,204
Cash flows from investing activities: |  |
Purchases of property and equipment | (400,352) | (136,727)
Proceeds from sale of property and equipment | 1,639 | 17,488
Net Cash Provided by (Used in) Investing Activities | (398,713) | (119,239)
Cash flows from financing activities: |  |
Proceeds from the exercise of stock options | 32,594 | 5,220
Proceeds from the issuance of Employee Stock Purchase Plan shares | 3,955 | 3,501
Repurchases of common stock | 0 | (364,997)
Payments for employee stock-based tax withholdings | 101,422 | 27
Proceeds from (Repayments of) Lines of Credit | 13,600 | 93,300
Net Cash Provided by (Used in) Financing Activities | (51,273) | (263,003)
Effect of foreign currency translation | 258 | 692
Net decrease in cash and cash equivalents | (92,808) | (166,346)
Cash and cash equivalents at beginning of period | 186,319 | 274,520
Cash and cash equivalents at end of period | 93,511 | 108,174
Supplemental disclosure of cash flow information: |  |
Interest Paid, Excluding Capitalized Interest, Operating Activities | 9,007 | 9,018
Income taxes paid, net of refunds | $ 57,591 | $ 39,327

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