CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net income	$ 21,728	$ 24,331
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	2,233	2,513
Stock-based compensation expense	1,673	1,580
Inventory impairments and abandonments	0	190
Deferred and other income tax expense	1,181	4,133
(Gain) loss on disposal of fixed assets	(96)	1,292
Loss on extinguishment of debt, net	13	515
Changes in operating assets and liabilities:
(Increase) decrease in accounts receivable	(19,704)	11,024
Decrease in income tax receivable	0	9
Increase in inventory	(196,334)	(40,489)
Decrease (increase) in other assets	2,135	(2,433)
Increase (decrease) in trade accounts payable	379	(36,817)
Decrease in other liabilities	(38,791)	(52,628)
Net cash used in operating activities	(225,583)	(86,780)
Cash flows from investing activities:
Capital expenditures	(5,544)	(3,245)
Proceeds from sale of fixed assets	96	16
Purchases of investment securities	(7,329)	0
Other	0	(2)
Net cash used in investing activities	(12,777)	(3,231)
Cash flows from financing activities:
Repayment of debt	(4,280)	0
Repayment of borrowings from credit facility	(50,000)	0
Borrowings from credit facility	50,000	0
Debt issuance costs	(115)	(2,575)
Tax payments for stock-based compensation awards	(5,210)	(2,597)
Net cash used in financing activities	(9,605)	(5,172)
Net decrease in cash, cash equivalents, and restricted cash	(247,965)	(95,183)
Cash, cash equivalents, and restricted cash at beginning of period	386,289	251,828
Cash, cash equivalents, and restricted cash at end of period	$ 138,324	$ 156,645