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