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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Cash flows from operating activities: |  |
Net income | $ 79,557 | $ 36,525
Adjustments to reconcile net income to net cash used in operating activities: |  |
Depreciation and amortization | 5,912 | 6,805
Stock-based compensation expense | 4,532 | 6,060
Inventory impairments and abandonments | 935 | 465
Deferred and other income tax expense | 16,531 | 11,786
Gain on sale of fixed assets | (159) | (170)
Change in allowance for doubtful accounts | 0 | (60)
Equity in income of unconsolidated entities | (451) | (111)
Cash distributions of income from unconsolidated entities | 248 | 0
Loss on extinguishment of debt, net | 164 | 563
Changes in operating assets and liabilities: |  |
Decrease in accounts receivable | 1,396 | 2,719
Decrease in income tax receivable | 0 | 49
Increase in inventory | (174,225) | (31,231)
Decrease in other assets | 1,109 | 1,327
Increase in trade accounts payable | 13,866 | 18,440
Decrease in other liabilities | (7,545) | (3,028)
Net cash (used in) provided by operating activities | (58,130) | 50,139
Cash flows from investing activities: |  |
Capital expenditures | (6,195) | (6,514)
Proceeds from sale of fixed assets | 159 | 170
Net cash used in investing activities | (6,036) | (6,344)
Cash flows from financing activities: |  |
Repayment of debt | (6,113) | (10,212)
Debt issuance costs | 0 | (427)
Tax payments for stock-based compensation awards | (6,620) | (2,620)
Stock option exercises | 4 | 631
Net cash used in financing activities | (12,729) | (12,628)
Net (decrease) increase in cash, cash equivalents, and restricted cash | (76,895) | 31,167
Cash, cash equivalents, and restricted cash at beginning of period | 274,143 | 342,528
Cash, cash equivalents, and restricted cash at end of period | $ 197,248 | $ 373,695

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