Consolidated Statements Of Cash Flows - USD ($)	12 Months Ended
	Mar. 28, 2020	Mar. 30, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 58,024,000	$ 79,752,000	$ 63,935,000
Adjustments to reconcile net income to net cash provided by operating activities -
Depreciation and amortization	64,986,000	55,531,000	49,335,000
Stock-based compensation expense	3,813,000	4,022,000	2,858,000
Impairment of long-lived assets	6,579,000	0	0
Net change in deferred income taxes	11,473,000	12,517,000	15,485,000
Gain on bargain purchase			(13,000)
(Gain) loss on disposal of assets	(257,000)	56,000	(1,198,000)
Change in operating assets and liabilities (excluding acquisitions)
Trade receivables	107,000	(1,361,000)	(88,000)
Inventories	(11,841,000)	(9,126,000)	(8,399,000)
Other current assets	5,379,000	(514,000)	(4,076,000)
Other non-current assets	24,968,000	(427,000)	1,863,000
Trade payables	(4,090,000)	19,037,000	5,151,000
Accrued expenses	(3,871,000)	(3,019,000)	(1,582,000)
Federal and state income taxes receivable	(2,470,000)	(1,401,000)	(658,000)
Other long-term liabilities	(31,100,000)	(1,967,000)	(930,000)
Long-term income taxes payable	(371,000)	(209,000)	(448,000)
Total adjustments	63,305,000	73,139,000	57,300,000
Net cash provided by operating activities	121,329,000	152,891,000	121,235,000
Cash flows from investing activities:
Capital expenditures	(55,918,000)	(44,468,000)	(39,122,000)
Acquisitions, net of cash acquired	(104,436,000)	(62,427,000)	(23,439,000)
Proceeds from the disposal of assets	967,000	723,000	4,071,000
Other	576,000	289,000
Net cash used for investing activities	(158,811,000)	(105,883,000)	(58,490,000)
Cash flows from financing activities:
Proceeds from borrowings	814,181,000	433,460,000	344,843,000
Principal payments on long-term debt, capital leases and financing obligations	(412,725,000)	(463,989,000)	(395,521,000)
Exercise of stock options	6,171,000	14,640,000	4,816,000
Dividends paid	(29,715,000)	(26,814,000)	(23,969,000)
Deferred financing costs	(1,168,000)
Net cash provided by (used for) financing activities	376,744,000	(42,703,000)	(69,831,000)
Increase (decrease) in cash	339,262,000	4,305,000	(7,086,000)
Cash at beginning of year	6,214,000	1,909,000	8,995,000
Cash at end of year	345,476,000	6,214,000	1,909,000
Supplemental information:
Interest paid, net	27,250,000	25,422,000	22,808,000
Income taxes	12,745,000	9,680,000	25,214,000
Leased assets obtained in exchange for new finance lease liabilities	64,393,000	$ 14,632,000	$ 19,175,000
Leased assets obtained in exchange for new operating lease liabilities	$ 6,980,000