Condensed Consolidated Statements Of Cash Flows (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jul. 26, 2020	Jul. 28, 2019
Cash flows from operating activities:
Net income	$ 25,754	$ 14,940
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	16,281	20,543
Investment impairments and credit loss reserves	5,115	0
Accretion of deferred financing costs and debt discount	242	247
Deferred income taxes	(6,209)	2,544
Share-based compensation	22,565	24,403
(Gain) loss on disposition of assets	(20)	426
Changes in the fair value of contingent earn-out obligations	(33)	(2,161)
Equity in net losses of equity method investments	148	243
Corporate owned life insurance, net	2,030	756
Changes in assets and liabilities:
Accounts receivable, net	10,255	20,580
Inventories	(4,538)	(11,381)
Other assets	(3,798)	(6,950)
Accounts payable	(5,820)	(2,256)
Accrued liabilities	543	(18,041)
Income taxes payable	0	(2,105)
Other liabilities	784	(1,695)
Net cash provided by operating activities	63,299	40,093
Cash flows from investing activities:
Proceeds from sales of property, plant and equipment	20	143
Purchase of property, plant and equipment	(14,640)	(16,893)
Purchase of investments	(6,688)	(7,692)
Proceeds from sale of investments	327	0
Net cash used in investing activities	(20,981)	(24,442)
Cash flows from financing activities:
Payments of term loans	0	(9,375)
Payments of revolving line of credit	(8,000)	0
Deferred financing costs	(30)	0
Payment for employee share-based compensation payroll taxes	(6,750)	(13,401)
Proceeds from exercise of stock options	2,981	2,954
Repurchase of common stock	(42,387)	(20,110)
Net cash used in financing activities	(54,186)	(39,932)
Net decrease in cash and cash equivalents	(11,868)	(24,281)
Cash and cash equivalents at beginning of period	293,324	312,120
Cash and cash equivalents at end of period	281,456	287,839
Supplemental disclosure of cash flow information:
Interest paid	2,664	4,348
Income taxes paid	4,632	7,580
Non-cash investing and financing activities:
Accounts payable related to capital expenditures	$ 1,377	$ 2,024