Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Goodwill [Line Items]
Goodwill	$ 270,580	$ 300,011	$ 301,802
Other Intangible Assets, Written off Related to Sale of Business Unit	12,500
Amortization of intangibles	13,811	14,411	14,668
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	12,500
Finite-Lived Intangible Assets, Amortization Expense, Year Two	12,100
Finite-Lived Intangible Assets, Amortization Expense, Year Three	11,900
Finite-Lived Intangible Assets, Amortization Expense, Year Four	10,700
Finite-Lived Intangible Assets, Amortization Expense, Year Five	9,500
WIDIA [Member]
Goodwill [Line Items]
Goodwill	0	27,303	27,548
Industrial [Member]
Goodwill [Line Items]
Goodwill	$ 270,580	$ 272,708	$ 274,254