CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2025	Mar. 29, 2024
Cash flows from operating activities:
Net loss	$ (54,211)	$ (3,339)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation of property, plant, and equipment	2,337	1,237
Impairment of fixed assets and operating lease right-of-use assets	13,216
Accretion/Amortization of investments available for sale	(129)	(120)
Deferred income taxes	(1,029)	61
Change in net pension liability	(2,457)	(93)
Stock-based compensation expense	6,015	6,339
Provision for sales returns and credit losses	(910)	128
Inventory provision	2,031	646
Changes in working capital:
Accounts receivable	38,170	29,837
Inventories	(6,304)	(4,002)
Prepayments, deposits, and other assets	(1,809)	(5,485)
Accounts payable	(5,961)	1,519
Other current liabilities	5,307	(5,048)
Net cash provided by (used in) operating activities	(5,734)	21,680
Cash flows from investing activities:
Acquisition of property and equipment	(1,468)	(5,202)
Purchase of investments available for sale	(14,691)
Proceeds from maturity of investments available for sale	51,148	20,539
Proceeds from sale of investments available for sale	362	850
Net cash provided by investing activities	35,351	16,187
Cash flows from financing activities:
Repayment of finance lease obligations	(42)	(40)
Repurchase of employee common stock for taxes withheld	(1,283)	(1,229)
Proceeds from the exercise of stock options	376	5,324
Proceeds from vested restricted and performance stock units	1	1
Net cash provided by (used in) financing activities	(948)	4,056
Effect of exchange rate changes on cash and cash equivalents	286	(937)
Increase in cash and cash equivalents	28,955	40,986
Cash and cash equivalents, at beginning of the year	144,159	183,038
Cash and cash equivalents, at end of the period	$ 173,114	$ 224,024