Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Cash flows from operating activities
Net income	$ 108,616	$ 13,040	$ 112,062
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	52,206	48,296	45,330
Deferred income taxes	(9,764)	20,388	(366)
Share-based compensation expense	21,335	17,981	17,411
Other, net	204	(196)	149
Changes in operating assets and liabilities, excluding impacts of acquisition:
Accounts receivable	(96,694)	(30,706)	53,705
Contract assets	(14,526)	0	0
Inventories	18,798	(140,615)	(86,072)
Other current and noncurrent assets	(3,728)	(19,168)	(8,740)
Accrued income taxes payable	4,125	53,504	253
Accounts payable	(56,724)	93,342	6,894
Customer deposits	49,652	(16,713)	22,599
Other current and noncurrent liabilities	41,800	27,678	8,509
Cash flows provided by operating activities	115,300	66,831	171,734
Cash flows from investing activities
Payments for property, plant and equipment	(90,600)	(62,780)	(38,538)
Proceeds from sales of property, plant and equipment	261	538	704
Business acquisition	1,180
Business acquisition		(12,379)	0
Other, net	(200)	0	0
Cash flows used in investing activities	(89,359)	(74,621)	(37,834)
Cash flows from financing activities
Borrowings under debt agreements	1,084,500	834,341	331,076
Payments on debt and capital lease obligations	(993,588)	(970,258)	(302,880)
Debt issuance costs	(603)	(729)	0
Repurchases of common stock	(182,109)	(137,034)	(34,136)
Proceeds from exercise of stock options	2,614	13,699	13,368
Payments related to tax withholding for share-based compensation	(8,033)	(5,482)	(6,123)
Cash flows (used in) provided by financing activities	(97,219)	(265,463)	1,305
Effect of exchange rate changes on cash and cash equivalents	(154)	1,685	1,085
Net (decrease) increase in cash and cash equivalents and restricted cash	(71,432)	(271,568)	136,290
Cash and cash equivalents and restricted cash:
Beginning of period	297,686	569,254	432,964
End of period	226,254	297,686	569,254
Supplemental disclosure information:
Interest Paid, net	15,701	12,030	13,812
Income taxes paid	$ 26,277	$ 18,891	$ 10,158