v3.26.1
Income Taxes (Reconciliation Between Federal Statutory Tax Rate and Effective Tax Rate Reflected in Accompanying Financial Statements) (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 28, 2026
Mar. 29, 2025
Mar. 30, 2024
Reconciliation between Federal statutory tax rate and effective tax rate reflected in accompanying financial statements      
U.S federal statutory rate, Amount $ 651    
State income tax, net of federal income tax benefit, Amount 1,028    
Tax credits, Amount (667)    
Nontaxable or nondeductible items, Amount 844    
Changes in unrecognized tax benefits, Amount (1,105)    
Other, Amount 176    
Nondeductible share-based compensation 661    
Total provision for (benefit from) income taxes $ 927 $ (731) $ 14,309
U.S federal statutory rate, percentage 21.00% 21.00% 21.00%
State income taxes, net of federal tax benefit, percentage 33.20% 8.00% 5.30%
Tax adjustments, percentage   (7.00%) 0.30%
Valuation allowance, percentage   (7.50%) 0.30%
Share-based compensation, percentage   (8.10%) 1.00%
Tax credits, percentage (21.50%) 9.40% (1.10%)
Nondeductible items, percentage 27.20% (4.00%) 0.90%
Changes in unrecognized tax benefits, Percentage (35.70%)    
Other, percentage 5.70% 0.60% (0.10%)
Effective tax rate, percentage 29.90% 12.40% 27.60%
Tax Jurisdiction of Domicile [Extensible Enumeration] country:US    
Effective Income Tax Rate Reconciliation, State and Local Jurisdiction, Contribution Greater than 50 Percent, Tax Effect [Extensible Enumeration] mnro:DelawareNorthCarolinaAndLouisvilleMember