Condensed Consolidated Statements Of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Oct. 25, 2020	Oct. 27, 2019
Cash flows from operating activities:
Net income	$ 44,236	$ 28,937
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	24,207	30,270
Investment impairments and credit loss reserves	5,450	0
Accretion of deferred financing costs and debt discount	362	365
Deferred income taxes	(7,121)	422
Share-based compensation	36,103	37,458
(Gain) loss on disposition of assets	(20)	292
Changes in the fair value of contingent earn-out obligations	(33)	(2,313)
Equity in net gains of equity method investments	(11)	(109)
Corporate owned life insurance, net	4,197	3,358
Changes in assets and liabilities:
Accounts receivable, net	3,227	17,779
Inventories	(5,357)	(6,429)
Other assets	(15,109)	(2,663)
Accounts payable	157	(8,592)
Accrued liabilities	1,992	(21,126)
Income taxes payable	0	(2,105)
Other liabilities	(604)	(2,183)
Net cash provided by operating activities	91,676	73,361
Cash flows from investing activities:
Proceeds from sales of property, plant and equipment	20	329
Purchase of property, plant and equipment	(21,808)	(20,409)
Purchase of investments	(10,938)	(9,592)
Proceeds from sale of investments	327	0
Net cash used in investing activities	(32,399)	(29,672)
Cash flows from financing activities:
Payments of term loans	0	(14,062)
Payments of revolving line of credit	(12,000)	0
Deferred financing costs	(30)	0
Payments of earn-out	0	(237)
Payment for employee share-based compensation payroll taxes	(16,957)	(20,514)
Proceeds from exercise of stock options	5,090	4,446
Repurchase of common stock	(66,433)	(42,636)
Contributions from noncontrolling interest	0	251
Net cash used in financing activities	(90,330)	(72,752)
Net decrease in cash and cash equivalents	(31,053)	(29,063)
Cash and cash equivalents at beginning of period	293,324	312,120
Cash and cash equivalents at end of period	262,271	283,057
Supplemental disclosure of cash flow information:
Interest paid	4,976	6,641
Income taxes paid	8,086	8,531
Non-cash investing and financing activities:
Accounts payable related to capital expenditures	$ 3,419	$ 1,157