Stock-based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of common stock shares authorized to issue (shares)	5,240,377		5,240,377
Common stock, par value (in US$ per share)	$ 0.001		$ 0.001		$ 0.001
Stock-based compensation expense	$ 869	$ 1,282	$ 3,148	$ 3,594
Tax benefit from stock-based compensation expense	$ 332	$ 468	$ 1,201	$ 1,311