Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Cash Flows from Operating Activities:
Net earnings	$ 235,087	$ 245,993	$ 261,151
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	89,391	79,663	72,192
Share-based compensation expense	16,778	22,107	19,201
Amortization of deferred financing costs	3,789	3,759	3,587
Excess tax benefit from share-based compensation	(22,084)	(14,646)	(15,385)
Net loss on disposal of property and equipment	2,570	354	72
Net loss on extinguishment of debt			220
Deferred income taxes	7,121	(815)	10,480
Changes in (exclusive of effects of acquisitions):
Trade accounts receivable	774	4,020	3,053
Accounts receivable, other	3,255	(7,715)	3,306
Inventory	(80,321)	(27,533)	(70,282)
Other current assets	2,516	7,180	21,658
Other assets	(744)	(1,203)	(581)
Accounts payable and accrued liabilities	19,575	2,726	(7,059)
Income taxes payable	22,924	(1,529)	8,786
Other liabilities	156	3,611	55
Net cash provided by operating activities	300,787	315,972	310,454
Cash Flows from Investing Activities:
Capital expenditures	(106,532)	(76,814)	(84,879)
Proceeds from sales of property and equipment	182	258	120
Acquisitions, net of cash acquired	(6,468)	(5,198)	(22,218)
Net cash used by investing activities	(112,818)	(81,754)	(106,977)
Cash Flows from Financing Activities:
Proceeds from issuances of long-term debt	983	356,247	365,500
Repayments of long-term debt	(1,814)	(234,103)	(291,451)
Repurchases of common stock	(227,559)	(333,291)	(509,704)
Debt issuance costs		(3,896)	(1,998)
Proceeds from exercises of stock options	54,351	26,663	25,493
Excess tax benefit from share-based compensation	22,084	14,646	15,385
Net cash used by financing activities	(151,955)	(173,734)	(396,775)
Effect of foreign exchange rate changes on cash and cash equivalents	(2,551)	(1,024)	193
Net increase (decrease) in cash and cash equivalents	33,463	59,460	(193,105)
Cash and cash equivalents, beginning of year	106,575	47,115	240,220
Cash and cash equivalents, end of year	140,038	106,575	47,115
Supplemental Cash Flow Information:
Interest paid	113,041	107,882	105,638
Income taxes paid	$ 107,589	$ 138,852	$ 111,422