Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Cash flows from operating activities:
Net income (loss)	$ 144	$ 5,793
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	10,606	13,156
Amortization of intangible assets	2,614	12,312
Deferred income taxes	12,615	(1,911)
Amortization of debt issuance cost	857	826
Stock-based compensation	12,185	7,792
Non-cash restructuring charges	3,509	599
Amortization of right of use assets	4,427	4,104
Other non-cash expense	219	229
Changes in assets and liabilities, net of effect of acquisitions:
Accounts receivable	(359)	34,320
Inventories	18,570	(867)
Prepaid expenses and other assets	(3,577)	(3,418)
Other long-term assets	(2,071)	(3,471)
Accounts payable	(912)	789
Income taxes payable/receivable	13,306	(2,447)
Operating lease liabilities	(4,090)	(3,877)
Other current liabilities	6,766	(7,856)
Other long-term liabilities	122	3,968
Net cash provided by operating activities	74,931	60,041
Cash flows from investing activities:
Purchases of property and equipment	(15,073)	(11,496)
Proceeds from dispositions of property and equipment	1,695	695
Proceeds from sales and maturities of available-for-sale securities	0	120
Net cash used in investing activities	(13,378)	(10,681)
Cash flows from financing activities:
Short-term borrowings	0	12,144
Repayments of short-term borrowings	(468)	(12,238)
Repayments of long-term borrowings	(2,104)	(1,956)
Issuance of common stock under employee stock option and purchase plans	5,896	5,747
Net settlement of restricted common stock	(8,903)	(13,175)
Net cash used in financing activities	(5,579)	(9,478)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	12,182	4,035
Net increase in cash, cash equivalents and restricted cash	68,156	43,917
Cash, cash equivalents and restricted cash, beginning of period	445,520	318,661
Cash, cash equivalents and restricted cash, end of period	513,676	362,578
Non-cash investing and financing activities:
Unpaid property and equipment purchases	$ 6,914	$ 7,770