Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jul. 02, 2016	Mar. 31, 2016
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 6,896	$ 7,808
Preferred stock, par value (in US$ per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in US$ per share)	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	26,640,000	26,470,000
Common stock, shares outstanding	15,148,000	15,018,000
Treasury stock, shares	11,492,000	11,452,000