Consolidated Statements of Shareholders' Equity Parentheticals - $ / shares	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Statement of Stockholders' Equity [Abstract]
Issuance of non-restricted stock (in shares)	45,000	34,000	42,000
Conversion of Class A to Class B common stock (in shares)	5,000	58,000	13,000
Performance Share Issuance (in shares)		67,000	81,000
Restricted Share Units Issuance (in shares)	163,000	99,000	106,000
Relative total shareholder return performance units issuance (in shares)	32,000	48,000	27,000
Repurchase of common stock (in shares)	278,000	146,000	567,000
Dividends declared (in dollars per share)	$ 0.36	$ 0.36	$ 0.32