Note 11 - Stockholders' Equity (Details Textual) - USD ($) $ in Millions	6 Months Ended
	Sep. 30, 2023	Oct. 01, 2022
Treasury Stock, Shares, Acquired (in shares)	4,952,923
Treasury Stock, Value, Acquired, Cost Method	$ 188.2
Common Class A [Member]
Treasury Stock, Shares, Acquired (in shares)	386,681	689,926
Treasury Stock, Value, Acquired, Cost Method	$ 19.6	$ 37.0
Common Class B [Member]
Treasury Stock, Shares, Acquired (in shares)	0	0