Note 9. Employee Benefit Plans - Postemployment Plans Textuals (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Defined Benefit Plan Disclosure
Assets for Plan Benefits, Defined Benefit Plan	$ 0
Liability, Defined Benefit Plan	4,200	$ 3,400
Liability, Defined Benefit Plan, Noncurrent	3,600	3,100
Liability, Defined Benefit Plan, Current	600	300
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	300	800	$ 300
Domestic
Defined Benefit Plan Disclosure
Liability, Defined Benefit Plan	1,100	1,500
Foreign Plan
Defined Benefit Plan Disclosure
Defined Benefit Plan, Benefit Obligation	$ 3,100	$ 1,900