Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Cash Flows from Operating Activities:
Net earnings	$ 222,942	$ 235,087	$ 245,993
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	99,657	89,391	79,663
Share-based compensation expense	12,580	16,778	22,107
Amortization of deferred financing costs	3,255	3,789	3,759
Excess tax benefit from share-based compensation	(1,347)	(22,084)	(14,646)
Net loss on disposal of property and equipment	495	2,570	354
Net loss on extinguishment of debt	33,296
Deferred income taxes	21,460	7,121	(815)
Changes in (exclusive of effects of acquisitions):
Trade accounts receivable	936	774	4,020
Accounts receivable, other	4,697	3,255	(7,715)
Inventory	(31,397)	(80,321)	(27,533)
Other current assets	(17,194)	2,516	7,180
Other assets	(1,964)	(744)	(1,203)
Accounts payable and accrued liabilities	13,621	19,575	2,726
Income taxes payable	(4,331)	22,924	(1,529)
Other liabilities	(5,701)	156	3,611
Net cash provided by operating activities	351,005	300,787	315,972
Cash Flows from Investing Activities:
Capital expenditures	(151,220)	(106,532)	(76,814)
Proceeds from sales of property and equipment	2,531	182	258
Acquisitions, net of cash acquired	(26,141)	(6,468)	(5,198)
Net cash used by investing activities	(174,830)	(112,818)	(81,754)
Cash Flows from Financing Activities:
Proceeds from issuances of long-term debt	912,000	983	356,247
Repayments of long-term debt	(938,537)	(1,814)	(234,103)
Repurchases of common stock	(207,312)	(227,559)	(333,291)
Debt issuance costs	(12,748)		(3,896)
Proceeds from exercises of stock options	16,220	54,351	26,663
Excess tax benefit from share-based compensation	1,347	22,084	14,646
Net cash used by financing activities	(229,030)	(151,955)	(173,734)
Effect of foreign exchange rate changes on cash and cash equivalents	(561)	(2,551)	(1,024)
Net increase (decrease) in cash and cash equivalents	(53,416)	33,463	59,460
Cash and cash equivalents, beginning of year	140,038	106,575	47,115
Cash and cash equivalents, end of year	86,622	140,038	106,575
Supplemental Cash Flow Information:
Interest paid	138,956	113,041	107,882
Income taxes paid	$ 123,738	$ 107,589	$ 138,852