Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 02, 2022	Oct. 03, 2021
Cash flows from operating activities:
Net income (loss)	$ (62,943)	$ 50,378
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	7,845	10,922
Stock-based compensation	13,266	20,072
Loss on investments, net	342	174
Goodwill impairment	44,442	0
Change in fair value of contingent consideration	0	(3,003)
Deferred income taxes	(13,895)	4,838
Provision for excess and obsolete inventory	3,005	3,045
Changes in assets and liabilities:
Accounts receivable, net	1,250	70,526
Inventories	14,572	(136,062)
Prepaid expenses and other assets	(2,858)	(5,678)
Accounts payable	13,432	(15,344)
Accrued employee compensation	(4,329)	(12,654)
Other accrued liabilities	(23,504)	6,193
Deferred revenue	3,268	2,061
Income taxes payable	(2,692)	(3,966)
Net cash used in operating activities	(8,799)	(8,498)
Cash flows from investing activities:
Purchases of short-term investments	(143,933)	(145)
Proceeds from maturities of short-term investments	50,418	165
Purchases of property and equipment	(4,133)	(6,918)
Purchases of long-term investments	(450)	(535)
Net cash used in investing activities	(98,098)	(7,433)
Cash flows from financing activities:
Repurchases of common stock	(24,377)	(53,634)
Restricted stock unit withholdings	(4,731)	(7,456)
Proceeds from exercise of stock options	743	8,912
Proceeds from issuance of common stock under employee stock purchase plan	4,418	4,916
Net cash used in financing activities	(23,947)	(47,262)
Net decrease in cash and cash equivalents	(130,844)	(63,193)
Cash and cash equivalents, at beginning of period	263,772	346,460
Cash and cash equivalents, at end of period	132,928	283,267
Supplemental Cash Flow Information:
Unpaid property and equipment	$ 735	$ 2,019