Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities:
Net earnings	$ 68,838	$ 57,191
Adjustments to reconcile net earnings to net cash (used) provided by operating activities:
Depreciation and amortization	24,421	26,386
Share-based compensation expense	3,958	2,893
Amortization of deferred financing costs	932	1,496
Loss on disposal of equipment and other property	3	1,589
Deferred income taxes	1,867	229
Changes in (exclusive of effects of acquisitions):
Trade accounts receivable	2,841	(3,502)
Accounts receivable, other	(1,724)	(8,643)
Inventory	(137,326)	(67,764)
Other current assets	(446)	3,220
Other assets	1,371	(240)
Operating leases, net	6,475	2,996
Accounts payable and accrued liabilities	16,729	12,401
Income taxes payable	18,166	14,307
Other liabilities	(11,790)	(3,573)
Net cash (used) provided by operating activities	(5,685)	38,986
Cash Flows from Investing Activities:
Payments for property and equipment, net of proceeds	(26,390)	(15,483)
Acquisitions, net of cash acquired	(319)	(2,025)
Net cash used by investing activities	(26,709)	(17,508)
Cash Flows from Financing Activities:
Repayments of long-term debt	(1,421)	(63)
Payments for common stock repurchased	(75,000)
Proceeds from equity awards	7,372
Employee withholding taxes paid related to net share settlement of equity awards	(1,136)	(249)
Net cash used by financing activities	(70,185)	(312)
Effect of foreign exchange rate changes on cash and cash equivalents	(240)	2,327
Net (decrease) increase in cash and cash equivalents	(102,819)	23,493
Cash and cash equivalents, beginning of period	400,959	514,151
Cash and cash equivalents, end of period	298,140	537,644
Supplemental Cash Flow Information:
Interest paid	35,034	43,439
Income taxes paid	3,978	2,609
Capital expenditures incurred but not paid	$ 3,594	$ 6,707