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Business and Accounting Policies Textuals (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Allowance for Doubtful Accounts Receivable, Current	$ 16,455	$ 13,661
Company's domestic inventory relate to LIFO layers	19.80%
Number of LIFO pools maintained (in pools)	5
Revenue Recognition, Sales Returns Reserve	$ 9,772	9,883
Shipping and Handling Costs	$ 15,970	19,620	$ 24,090
Vesting period of SARs and stock option awards	4 years
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	50.00%
Defined Contribution Plan, Cost	$ 3,945	5,959	7,711
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	401	317	414
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	800
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	$ 200
Lessee, Operating Lease, Renewal Term	5 years
KERP [Member]
Defined Contribution Plan, Cost	$ 334	189	400
Pension Plan [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	46	(116)	(34)
Other Postretirement Benefits Plan
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	$ (161)	$ (257)	$ (418)
Computer Software, Intangible Asset [Member]
Finite-Lived Intangible Asset, Useful Life	12 years
Buildings,BuildingsImprovementsandLeaseholdImprovementsMinimumUsefulLife [Member]
Property, Plant and Equipment, Useful Life	10 years
Buildings,BuildingsImprovementsandLeaseholdImprovements MaximumUsefulLife [Member]
Property, Plant and Equipment, Useful Life	30 years
PropertyandEquipmentMinimumUsefulLife [Member]
Property, Plant and Equipment, Useful Life	3 years
PropertyandEquipmentMaximumUsefulLife [Member]
Property, Plant and Equipment, Useful Life	10 years
Minimum [Member]
Lessee, Operating Lease, Term of Contract	1 year
Maximum [Member]
Lessee, Operating Lease, Term of Contract	15 years

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