Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Oct. 01, 2016
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES:
Net income (loss)	$ (95,533)	$ 138,833	$ 187,838
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	118,820	118,751	111,910
Stock-based compensation expense	32,825	37,920	26,907
Deferred income taxes	173,591	37,892	(16,829)
Goodwill impairment	30,610	0	0
Other, net	1,777	4,188	1,587
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	(69,076)	(136,072)	(36,913)
Inventories	(324,168)	(104,468)	5,614
Prepaid expenses and other assets	7,797	12,303	68
Accounts payable	268,421	130,648	95,193
Accrued liabilities	11,360	10,966	14,741
Cash provided by operating activities	156,424	250,961	390,116
CASH FLOWS PROVIDED BY (USED IN) INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(118,881)	(111,833)	(120,400)
Proceeds from sales of property, plant and equipment	4,722	3,935	4,740
Purchases of long-term investments	(2,019)	0	0
Cash paid for business combinations, net of cash acquired	0	0	(58,878)
Cash used in investing activities	(116,178)	(107,898)	(174,538)
CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES:
Repayments of short-term borrowings (1)	0	0	(18,014)	[1]
Proceeds from revolving credit facility borrowings	4,040,600	932,770	2,962,450
Repayments of revolving credit facility borrowings	(3,910,600)	(872,770)	(3,047,450)
Repayments of long-term debt	(3,416)	(43,416)	(4,382)
Net proceeds from stock issuances	4,407	27,129	18,221
Repurchases of common stock	(157,625)	(176,944)	(142,246)
Other, net	(1,701)	(2,262)	0
Cash used in financing activities	(28,335)	(135,493)	(231,421)
Effect of exchange rate changes	956	803	1,878
Increase (decrease) in cash and cash equivalents	12,867	8,373	(13,965)
Cash and cash equivalents at beginning of year	406,661	398,288	412,253
Cash and cash equivalents at end of year	419,528	406,661	398,288
Cash paid during the year:
Interest, net of capitalized interest	26,156	17,983	21,316
Income taxes, net of refunds	34,819	20,417	29,342
Noncash Investing and Financing Items:
Unpaid purchases of property, plant and equipment at end of period	49,546	49,831	22,072
Acquisition-date fair value of promissory notes issued in conjunction with business combinations (see Note 13)	$ 0	$ 0	$ 30,105

[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.