Income Taxes - Reconciliation (Details)	12 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Apr. 01, 2018
Effective income tax rate reconciliation
Statutory federal rate (as a percent)	21.00%	21.00%	31.30%
State taxes, net of federal benefit (as a percent)	2.00%	3.50%	4.00%
Non-deductible expenses (as a percent)	(0.50%)	2.10%	4.40%
Change in uncertain tax positions (as a percent)		(4.60%)
Change in valuation allowance (as a percent)	(6.50%)	1.90%
Change in deferred tax related to key man life insurance (as a percent)			(7.30%)
Rate change for loss carrybacks	9.90%
Other (as a percent)	0.40%		(1.90%)
Effective rate (as a percent)	26.30%	23.90%	30.50%