Condensed Consolidated Balance Sheets (unaudited) Parentheticals - USD ($) $ in Thousands	Mar. 31, 2020	Jun. 30, 2019
Allowance for Doubtful Accounts, Premiums and Other Receivables	$ 2,531	$ 1,321
Property and Equipment Accumulated Depreciation	192,134	185,865
Intangible Assets Accumulated Amortization	$ 39,998	$ 38,320
Class A Common Stock
Common Stock, Shares Authorized	50,000,000	50,000,000
Common Stock, Shares, Issued	193,000	251,000
Common Stock, Par or Stated Value Per Share	$ 0.05	$ 0.05
Class B Common Stock
Common Stock, Shares Authorized	100,000,000	100,000,000
Common Stock, Shares, Issued	42,830,000	42,773,000
Treasury Stock, Shares	6,205,000	6,212,000
Common Stock, Par or Stated Value Per Share	$ 0.05	$ 0.05