CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019
Cash Flows from Operating Activities:
Net income	$ 93,407	$ 45,692
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	22,835	21,220
Amortization of deferred financing fees	712	1,694
Stock-based compensation	6,315	10,399
Deferred income taxes	732	9,874
Other	1,414	0
Impairment of long-lived assets	632	540
Loss on prepayment of debt	418	0
Changes in operating assets and liabilities:
Accounts receivable, net	10,236	(12,086)
Inventory	50,943	(64,136)
Other current assets	5,570	(1,076)
Accounts payable and accrued expenses	31,537	27,705
Taxes payable	11,019	(3,556)
Other	3,329	(9,683)
Net cash provided by operating activities	239,099	26,587
Cash Flows from Investing Activities:
Purchases of property and equipment	(10,904)	(24,249)
Additions of intangibles, net	(5,377)	(14,991)
Net cash used in investing activities	(16,281)	(39,240)
Cash Flows from Financing Activities:
Borrowings under revolving credit facility	50,000	0
Repayments under revolving credit facility	(50,000)	0
Repayments of long-term debt	(61,250)	(34,875)
Proceeds from employee stock transactions	2,033	2,708
Taxes paid in connection with employee stock transactions	(1,027)	0
Payments of dividends	0	(636)
Finance lease principal payment	(138)	(29)
Net cash used in financing activities	(60,382)	(32,832)
Effect of exchange rate changes on cash	(138)	(9)
Net increase (decrease) in cash	162,298	(45,494)
Cash, beginning of period	72,515	80,051
Cash, end of period	234,813	34,557
Supplemental disclosure of cash flow information
Change in accrual for property and equipment	$ 667	$ 339