CASH, CASH EQUIVALENTS, AND INVESTMENTS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 26, 2020	Dec. 28, 2019	Dec. 26, 2020	Dec. 28, 2019	Sep. 26, 2020	Mar. 28, 2020	May 31, 2015
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	$ 230,065		$ 230,065			$ 213,879
Short-term investments (due in 1 year or less)	15,280		15,280			11,841
Total cash, cash equivalents and investments measured at fair value, amortized cost	244,022		244,022			226,817
Total cash, cash equivalents and investments measured at fair value, gross unrealized gains	1,360		1,360			31
Total cash, cash equivalents and investments measured at fair value, gross unrealized losses	(37)		(37)			(1,128)
Total cash, cash equivalents and investments measured at fair value, fair value	245,345		245,345			225,720
Unrealized Gain (Loss)	0	$ 0	2,500	$ 0
Cash
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	205,058		205,058			213,879
Level 1 | Mutual Funds
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	0		0			0
Available-for-sale Securities, amortized cost basis	13,957		13,957			12,938
Available-for-sale Securities, gross unrealized gains	1,360		1,360			31
Available-for-sale Securities, gross unrealized losses	(37)		(37)			(1,128)
Available-for-sale Securities, fair value	15,280		15,280			11,841
Short-term investments (due in 1 year or less)	15,280		15,280			$ 11,841
Level 1 | Money Market Funds
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	25,007		25,007
Available-for-sale Securities, amortized cost basis	25,007		25,007
Available-for-sale Securities, gross unrealized gains	0		0
Available-for-sale Securities, gross unrealized losses	0		0
Available-for-sale Securities	$ 25,007		$ 25,007
5.50% Senior Notes | Senior Notes
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Stated interest rate of debt instrument	5.50%		5.50%		5.50%		5.50%