Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ 28,548	$ (81,949)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	10,834	8,912
Stock-based compensation expense	4,869	7,993
Inventory impairments and abandonments	2,266	148,618
Deferred and other income tax expense (benefit)	8,900	(44,758)
Gain on sale of fixed assets	(195)	(142)
Change in allowance for doubtful accounts	(6)	(20)
Equity in income of unconsolidated entities	(138)	(315)
Cash distributions of income from unconsolidated entities	56	409
Loss (gain) on extinguishment of debt, net	0	(574)
Changes in operating assets and liabilities:
Decrease in accounts receivable	8,555	4,380
Decrease in income tax receivable	315	0
Increase in inventory	(6,616)	(156,472)
Increase in other assets	(1,377)	(776)
Increase in trade accounts payable	48	26,009
Increase (decrease) in other liabilities	2,897	(5,520)
Net cash provided by (used in) operating activities	58,956	(94,205)
Cash flows from investing activities:
Capital expenditures	(7,510)	(16,365)
Proceeds from sale of fixed assets	214	162
Acquisition, net of cash acquired	0	(4,088)
Net cash used in investing activities	(7,296)	(20,291)
Cash flows from financing activities:
Repayment of debt	(1,150)	(22,333)
Repayment of borrowings from credit facility	(345,000)	(235,000)
Borrowings from credit facility	345,000	340,000
Debt issuance costs	(97)	(400)
Repurchase of common stock	(3,327)	(34,624)
Tax payments for stock-based compensation awards	(2,674)	(1,889)
Stock option exercises and other financing activities	(1,854)	278
Net cash (used in) provided by financing activities	(9,102)	46,032
Net increase (decrease) in cash, cash equivalents, and restricted cash	42,558	(68,464)
Cash, cash equivalents, and restricted cash at beginning of period	122,794	153,248
Cash, cash equivalents, and restricted cash at end of period	$ 165,352	$ 84,784

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_RepaymentsOfLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of noncash expense for share-based payment arrangement.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration