Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Mar. 29, 2025	Mar. 30, 2024
Cash flows from operating activities:
Net loss	$ (39,958)	$ (73,902)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	19,924	6,352
Loss from equity method investment	4,055	0
Foreign currency gains	(12)	(8)
Gain on investments	0	(8,745)
Provision for excess and obsolete inventory	980	34,276
Loss on disposal of assets	201	0
Stock-based compensation	70,128	57,527
Gain from strategic investment fair value adjustment	(4,481)	0
Changes in operating assets and liabilities:
Accounts receivable	64,181	(58,461)
Inventories	(33,657)	(17,920)
Prepaid expenses and other current assets	99,808	(42,430)
Deferred expenses	(3,921)	(5,046)
Other assets	(7,479)	(5,466)
Accounts payable	44,951	23,315
Accrued expenses and other current liabilities	(20,145)	(1,884)
Deferred revenue	288,619	72,644
Other liabilities	(8,592)	10,670
Net cash provided by (used in) operating activities	474,602	(9,078)
Cash flows from investing activities:
Purchases of property and equipment and capitalization of internal use software development costs	(27,917)	(5,864)
Proceeds from maturities of marketable securities	0	290,000
Purchases of marketable securities	0	(48,660)
Acquisitions of strategic investments	(17,992)	0
Cash paid for business acquisitions	(200,000)	0
Net cash provided by (used in) investing activities	(245,909)	235,476
Cash flows from financing activities:
Payment for taxes related to net share settlement of stock-based compensation awards	(3,012)	(3,181)
Net proceeds from issuance of common stock under employee stock purchase plan	3,233	3,435
Proceeds from issuance of Class A Common Stock	0	257,985
Proceeds from exercise of warrants	0	158,702
Distributions to or on behalf of Symbotic Holdings LLC partners	(1,232)	0
Net cash provided by (used in) financing activities	(1,011)	416,941
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(34)	(15)
Net increase in cash, cash equivalents, and restricted cash	227,648	643,324
Cash, cash equivalents, and restricted cash — beginning of period	730,354	260,918
Cash, cash equivalents, and restricted cash — end of period	958,002	904,242
Non-cash activities:
Operating lease right-of-use assets obtained in exchange for operating lease liabilities	7,988	5,818
Transfer of equipment from deferred cost to property and equipment	7,982	38,454
Non-cash contribution to unconsolidated entity	$ 2,785	$ 0