Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Cash flows from operating activities:
Net income	$ 149,340	$ 83,834
Adjustments to reconcile net income to net cash generated by operating activities:
Depreciation and amortization	55,379	62,638
Stock-based compensation expense	39,700	37,106
Deferred income taxes	(3,403)	(2,247)
Loss on retirement or write-off of long-lived assets	46	2,226
Net charges for defined benefit pension plan	0	11,189
Other non-cash adjustments	560	322
Net change in operating assets and liabilities:
Accounts receivable, net	(55,281)	(35,795)
Inventories	26,813	37,490
Other assets	(9,892)	(4,760)
Accounts payable and other accrued liabilities	47,080	8,741
Income taxes payable	(3,795)	(3,608)
Net cash generated by operating activities	246,547	197,136
Cash flows from investing activities:
Maturities and sales of available-for-sale marketable securities	131,761	41,389
Purchases of available-for-sale marketable securities	(163,925)	(66,729)
Purchases of property, equipment and software	(13,262)	(23,421)
Investments in technology	(4,893)	(2,700)
Net cash used in investing activities	(50,319)	(51,461)
Cash flows from financing activities:
Issuance of common stock, net of shares withheld for taxes	14,211	404
Repurchase of stock to satisfy employee tax withholding obligations	(14,309)	(12,367)
Repurchase and retirement of common stock	(70,001)	(149,997)
Net cash used in financing activities	(70,099)	(161,960)
Net increase (decrease) in cash and cash equivalents	126,129	(16,285)
Cash and cash equivalents at beginning of period	216,172	235,604
Cash and cash equivalents at end of period	$ 342,301	$ 219,319