Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2021	Mar. 28, 2020
Cash Flows from Operating Activities:
Net income	$ 32,730	$ 22,775
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation, amortization and accretion	7,267	7,496
Gain on equity method investment		(2,498)
Provision for doubtful accounts	18	14
Benefit for deferred income taxes		(912)
Provision for stock-based compensation	2,111	1,214
Changes in assets and liabilities:
Accounts receivable	8,338	(29,491)
Inventories	(38,978)	28,016
Prepaids and other current assets	(2,017)	2,262
Other assets	(1,270)	(2,219)
Accounts payable	737	(19,346)
Accrued customer rebates and returns	8,215	4,471
Accrued compensation and other liabilities	3,869	6,808
Cash provided by operating activities	21,020	18,590
Cash Flows from Investing Activities:
Acquisition, net of cash acquired		(14,462)
Property, plant and equipment additions	(6,207)	(3,505)
Cash used in investing activities	(6,207)	(17,967)
Cash Flows from Financing Activities:
Proceeds of revolving credit line		99,000
Proceeds from exercise of stock options	289
Other stock-related activity	(932)	(418)
Purchase and cancellation of common stock	(3,143)	(5,780)
Cash (used in) provided by financing activities	(3,786)	92,802
Net Increase in Cash and Cash Equivalents	11,027	93,425
Cash and Cash Equivalents, Beginning of Period	155,576	68,353
Cash and Cash Equivalents, End of Period	166,603	161,778
Supplemental Cash Flow Information
Cash paid for interest expense	77	20
Cash paid for income taxes	$ 167	$ 62