UNAUDITED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2011	Apr. 02, 2011
Accounts receivable, allowance	$ 1,788	$ 1,799
Intangible assets, amortization	$ 52,033	$ 43,827
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	150,000,000	150,000,000
Common stock, issued	25,141,181	25,660,393
Common stock, outstanding	25,141,181	25,660,393