Income Taxes - Reconciliation (Details)	12 Months Ended
	Mar. 31, 2019	Apr. 01, 2018	Mar. 26, 2017
Effective income tax rate reconciliation
Statutory federal rate (as a percent)	21.00%	31.30%	34.00%
State taxes, net of federal benefit (as a percent)	3.50%	4.00%	4.60%
Non-deductible expenses (as a percent)	2.10%	4.40%	5.40%
Change in uncertain tax positions (as a percent)	(4.60%)
Change in valuation allowance (as a percent)	1.90%
Change in deferred tax related to key man life insurance (as a percent)		(7.30%)
Other (as a percent)		(1.90%)	(2.10%)
Effective rate (as a percent)	23.90%	30.50%	41.90%