Consolidated Condensed Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income / (Loss)
Balance (in shares) at Mar. 28, 2020		58,242,000
Beginning balance at Mar. 28, 2020	$ 1,229,779	$ 58	$ 1,434,871	$ (201,681)	$ (3,469)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	18,209			18,209
Change in unrealized gain (loss) on marketable securities, net of tax	7,496				7,496
Change in foreign currency translation adjustments	1,014				1,014
Issuance of stock under stock option plans and other, net of shares withheld for employee taxes (in shares)		139,000
Issuance of stock under stock option plans and other, net of shares withheld for employee taxes	2,485		3,062	(577)
Stock-based compensation	13,306		13,306
Balance (in shares) at Jun. 27, 2020		58,381,000
Ending balance at Jun. 27, 2020	1,272,289	$ 58	1,451,239	(184,049)	5,041
Balance (in shares) at Mar. 27, 2021		57,652,000
Beginning balance at Mar. 27, 2021	1,389,005	$ 58	1,498,761	(112,689)	2,875
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	17,209			17,209
Change in unrealized gain (loss) on marketable securities, net of tax	(887)				(887)
Change in foreign currency translation adjustments	(52)				(52)
Issuance of stock under stock option plans and other, net of shares withheld for employee taxes (in shares)		61,000
Issuance of stock under stock option plans and other, net of shares withheld for employee taxes	$ (1,028)		745	(1,773)
Repurchase and retirement of common stock (in shares)	(200,000)	(166,000)
Repurchase and retirement of common stock	$ (12,501)	$ 0		(12,501)
Stock-based compensation	14,985		14,985
Balance (in shares) at Jun. 26, 2021		57,547,000
Ending balance at Jun. 26, 2021	$ 1,406,731	$ 58	$ 1,514,491	$ (109,754)	$ 1,936