Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016		Oct. 03, 2015
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES:
Net income	$ 138,833	$ 187,838		$ 377,261
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	118,751	111,910		100,567
Stock-based compensation expense	37,920	26,907		20,653
Deferred income taxes	37,892	(16,829)		(242,274)
Other, net	4,188	1,587		280
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(136,072)	(36,913)		40,207
Inventories	(104,468)	5,614		(13,726)
Prepaid expenses and other assets	12,303	68		11,117
Accounts payable	130,648	95,193		(116,899)
Accrued liabilities	10,966	14,741		(2,290)
Cash provided by operating activities	250,961	390,116		174,896
CASH FLOWS PROVIDED BY (USED IN) INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(111,833)	(120,400)		(119,097)
Proceeds from sales of property, plant and equipment	3,935	4,740		30,561
Cash paid for business combinations, net of cash acquired	0	(58,878)		(13,887)
Cash used in investing activities	(107,898)	(174,538)		(102,423)
CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES:
Repayments of short-term borrowings (1)	0	(18,014)	[1]	(10,221)
Proceeds from revolving credit facility borrowings	932,770	2,962,450		2,692,900
Repayments of revolving credit facility borrowings	(872,770)	(3,047,450)		(2,582,900)
Repayments of long-term debt	(43,416)	(4,382)		(123,994)
Net proceeds from stock issuances	27,129	18,221		18,724
Repurchases of common stock	(176,944)	(142,246)		(122,762)
Other, net	(2,262)	0		1,492
Cash used in financing activities	(135,493)	(231,421)		(126,761)
Effect of exchange rate changes	803	1,878		(66)
Increase (decrease) in cash and cash equivalents	8,373	(13,965)		(54,354)
Cash and cash equivalents at beginning of year	398,288	412,253		466,607
Cash and cash equivalents at end of year	406,661	398,288		412,253
Cash paid during the year:
Interest, net of capitalized interest	17,983	21,316		18,746
Income taxes, net of refunds	20,417	29,342		44,751
Noncash Investing and Financing Items:
Unpaid purchases of property, plant and equipment at end of period	49,831	22,072		31,913
Acquisition-date fair value of promissory notes issued in conjunction with business combinations (see Note 11)	$ 0	$ 30,105		$ 0

[1] 2016 amount represents repayment of a promissory note issued in conjunction with a business combination in the second quarter of 2016. The note was repaid in the third quarter of 2016.