Business and Accounting Policies Textuals (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)
Business and Accounting Policies (Textuals) [Abstract]
Accounts Receivable, Allowance for Credit Loss, Current	$ 13,661	$ 10,498
Company's domestic inventory relate to LIFO layers	17.30%
Number of LIFO pools maintained (in pools)	5
Revenue Recognition, Sales Returns Reserve	$ 9,883	7,265
Shipping and Handling Costs	$ 19,620	24,090	$ 19,320
Vesting period of SARs and stock option awards	4 years
Contractual Terms of SARs and stock option awards	10 years
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	50.00%
Lessee, Operating Lease, Renewal Term	5 years
Operating lease assets, net	$ 90,636	0
Accounting Standards Update 2016-02 [Member]
Business and Accounting Policies (Textuals) [Abstract]
Operating lease assets, net	83,533
Total operating lease liabilities	89,778
Accounting Standards Update 2016-02 [Member] | Retained Earnings [Member]
Business and Accounting Policies (Textuals) [Abstract]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 3,275
Computer Software, Intangible Asset [Member]
Business and Accounting Policies (Textuals) [Abstract]
Finite-Lived Intangible Asset, Useful Life	12 years
Minimum [Member]
Business and Accounting Policies (Textuals) [Abstract]
Lessee, Operating Lease, Term of Contract	1 year
Maximum [Member]
Business and Accounting Policies (Textuals) [Abstract]
Lessee, Operating Lease, Term of Contract	15 years
Pension Plan [Member]
Business and Accounting Policies (Textuals) [Abstract]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	$ (116)	(34)	149
Postretirement Health Coverage [Member]
Business and Accounting Policies (Textuals) [Abstract]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	(257)	(418)	(452)
401(k) [Member]
Business and Accounting Policies (Textuals) [Abstract]
Defined Contribution Plan, Cost	5,959	7,711	6,551
SERP [Member]
Business and Accounting Policies (Textuals) [Abstract]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	317	414	679
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months	800
KERP [Member]
Business and Accounting Policies (Textuals) [Abstract]
Defined Contribution Plan, Cost	$ 189	$ 400	$ 359
Equipment [Member] | Minimum [Member]
Business and Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, Useful Life	3 years
Equipment [Member] | Maximum [Member]
Business and Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, Useful Life	10 years
Building and Building Improvements [Member] | Minimum [Member]
Business and Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, Useful Life	10 years
Building and Building Improvements [Member] | Maximum [Member]
Business and Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, Useful Life	30 years