Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Mar. 27, 2021	Mar. 28, 2020	Mar. 30, 2019
Cash flows from operating activities:
Net income	$ 217,344	$ 159,498	$ 89,991
Adjustments to net cash provided by operating activities:
Depreciation and amortization	47,083	68,237	79,826
Stock-based compensation expense	56,762	53,757	49,689
Deferred income taxes	(5,581)	(5,888)	1,717
(Gain) loss on retirement or write-off of long-lived assets	371	379	(2,713)
Charges for defined benefit pension plan	0	0	11,189
Other non-cash (gains) / charges	(622)	697	429
MEMS restructuring charges	352	21,925	0
Net change in operating assets and liabilities:
Accounts receivable, net	45,286	(33,082)	(14,316)
Inventories	(26,538)	17,765	40,636
Other assets	843	1,379	965
Accounts payable	21,104	27,626	(21,965)
Accrued salaries and benefits	12,410	11,470	(6,432)
Income taxes payable	(18,185)	(9,809)	(7,974)
Other accrued liabilities	(1,684)	(18,139)	(14,348)
Net cash provided by operating activities	348,945	295,815	206,694
Cash flows from investing activities:
Maturities and sales of available-for-sale marketable securities	168,328	170,818	70,840
Purchases of available-for-sale marketable securities	(225,528)	(249,463)	(98,864)
Purchases of property, equipment and software	(18,253)	(15,656)	(31,615)
Investments in technology	(2,222)	(5,920)	(4,143)
Proceeds from the sale of assets	0	0	9,120
Net cash used in investing activities	(77,675)	(100,221)	(54,662)
Cash flows from financing activities:
Issuance of common stock, net of shares withheld for taxes	7,128	18,635	1,616
Repurchase of stock to satisfy employee tax withholding obligations	(18,367)	(18,280)	(13,083)
Repurchase and retirement of common stock	(109,986)	(120,002)	(159,997)
Net cash used in financing activities	(121,225)	(119,647)	(171,464)
Net increase (decrease) in cash and cash equivalents	150,045	75,947	(19,432)
Cash and cash equivalents at beginning of period	292,119	216,172	235,604
Cash and cash equivalents at end of period	442,164	292,119	216,172
Cash payments during the year for:
Income taxes	28,988	22,321	20,617
Interest	$ 610	$ 457	$ 612