CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Dec. 29, 2018	Mar. 31, 2018
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 3,383	$ 2,111
Intangible assets, amortization	$ 272,370	$ 249,278
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	150,000,000	150,000,000
Common stock, shares issued (in shares)	50,992,734	52,342,965
Common stock, shares outstanding (in shares)	50,992,734	52,342,965