Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Mar. 30, 2019	Mar. 31, 2018
Cash flows from operating activities
Net income (loss)	$ 46,984	$ (86,203)
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Depreciation and amortization	25,468	23,602
Deferred income taxes	1,622	22,326
Share-based compensation expense	9,929	8,420
Other, net	92	(45)
Changes in operating assets and liabilities, excluding impacts of acquisition:
Accounts receivable	(50,717)	(32,326)
Contract assets	(10,298)	0
Inventories	(77,917)	(42,781)
Other current and noncurrent assets	(4,367)	(4,766)
Accrued income taxes payable	(824)	102,220
Accounts payable	(28,187)	15,611
Customer deposits	38,197	(3,680)
Other current and noncurrent liabilities	15,486	463
Cash flows (used in) provided by operating activities	(34,532)	2,841
Cash flows from investing activities
Payments for property, plant and equipment	(54,556)	(29,115)
Proceeds from sales of property, plant and equipment	93	273
Business acquisition	1,180	0
Cash flows used in investing activities	(53,283)	(28,842)
Cash flows from financing activities
Borrowings under debt agreements	667,025	504,616
Payments on debt and capital lease obligations	(581,360)	(612,961)
Repurchases of common stock	(106,297)	(41,159)
Proceeds from exercise of stock options	1,264	9,194
Payments related to tax withholding for share-based compensation	(6,400)	(5,371)
Cash flows used in financing activities	(25,768)	(145,681)
Effect of exchange rate changes on cash and cash equivalents	256	5,743
Net decrease in cash and cash equivalents and restricted cash	(113,327)	(165,939)
Cash and cash equivalents and restricted cash:
Beginning of period	297,686	569,254
End of period	$ 184,359	$ 403,315