Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 01, 2023	Oct. 02, 2022
Cash flows from operating activities:
Net loss	$ (103,098)	$ (62,943)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	5,491	7,845
Stock-based compensation	13,637	13,266
(Gain) Loss on investments, net	(2,301)	342
Goodwill impairment	0	44,442
Intangibles impairment	1,071	0
Deferred income taxes	82,205	(13,895)
Provision for excess and obsolete inventory	2,705	3,005
Changes in assets and liabilities:
Accounts receivable, net	76,585	1,250
Inventories	15,990	14,572
Prepaid expenses and other assets	(3,020)	(2,858)
Accounts payable	(38,443)	13,432
Accrued employee compensation	(4,952)	(4,329)
Other accrued liabilities	(46,929)	(23,504)
Deferred revenue	4,771	3,268
Income taxes payable	(3,130)	(2,692)
Net cash provided by (used in) operating activities	582	(8,799)
Cash flows from investing activities:
Purchases of short-term investments	(97,291)	(143,933)
Proceeds from maturities of short-term investments	85,006	50,418
Purchases of property and equipment	(3,601)	(4,133)
Purchases of long-term investments	(585)	(450)
Net cash used in investing activities	(16,471)	(98,098)
Cash flows from financing activities:
Repurchases of common stock	0	(24,377)
Restricted stock unit withholdings	(2,742)	(4,731)
Proceeds from exercise of stock options	0	743
Proceeds from issuance of common stock under employee stock purchase plan	3,590	4,418
Net cash provided by (used in) financing activities	848	(23,947)
Net decrease in cash and cash equivalents	(15,041)	(130,844)
Cash and cash equivalents, at beginning of period	146,500	263,772
Cash and cash equivalents, at end of period	131,459	132,928
Supplemental Cash Flow Information:
Unpaid property and equipment	$ 1,055	$ 735