CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2022	Mar. 27, 2021
Cash flows from operating activities:
Net income	$ 53,330	$ 24,113
Adjustments to reconcile net income to net cash and cash equivalents provided by operating activities:
Amortization of intangibles	13,819	12,357
Depreciation	2,366	3,618
Share-based compensation	4,832	4,890
Acquired inventory step-up amortization		252
Provision for inventory valuation	2,115	2,267
Deferred income taxes	(6,848)	460
Other, net	1,226	1,713
Changes in operating assets and liabilities, net of effects of business acquired	(25,384)	1,329
Net cash and cash equivalents provided by operating activities	45,456	50,999
Cash flows from investing activities:
Purchases of marketable securities	(97,490)	(83,652)
Proceeds from maturities and sales of marketable securities	66,684	53,973
Purchase of business, net of cash acquired		(26,795)
Purchases of property, plant and equipment	(2,494)	(3,875)
Net cash and cash equivalents used in investing activities	(33,300)	(60,349)
Cash flows from financing activities:
Tax payments related to shares withheld for share-based compensation plans	(5,289)	(2,492)
Payment of contingent consideration for acquired business	(2,287)
Issuance of shares through share-based compensation plans	6	3,085
Net cash and cash equivalents used in financing activities	(7,570)	593
Effect of exchange rate changes on cash and cash equivalents	(1,725)	(1,513)
Net increase (decrease) in cash and cash equivalents	2,861	(10,270)
Cash and cash equivalents at beginning of period	169,602	136,720
Cash and cash equivalents at end of period	172,463	126,450
Supplemental disclosure of cash flow information:
Income taxes paid (net of refunds)	$ 1,331	$ 1,799