Significant Accounting Policies (Tables)

12 Months Ended

Mar. 26, 2016

Significant Accounting Policies [Abstract]

Company's sales mix

	Year Ended Fiscal March
	2016		2015		2014
Brakes	15	%	15	%	15	%
Exhaust	3		3		4
Steering	10		10		9
Tires	45		44		44
Maintenance	27		28		28
Total	100	%	100	%	100	%

Weighted average fair value of options assumptions

	Year Ended Fiscal March
	2016		2015		2014
Risk-free interest rate	1.25	%	1.23	%	.86	%
Expected life, in years	4		4		4
Expected volatility	27.2	%	27.7	%	29.7	%
Expected dividend yield	.96	%	.99	%	.97	%