Retirement Benefits (Narrative) (Details) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2022 USD ($) shares	Mar. 31, 2021 USD ($) shares	Jun. 30, 2022 USD ($) ServiceRequirement shares	Jun. 30, 2021 USD ($) shares
Defined Benefit Plan Disclosure [Line Items]
Percentage of annual contribution equal to eligible prior year wages			5.00%
Minimum service requirement for eligible annual contribution | ServiceRequirement			0
Common shares issued from treasury stock for benefit plans	$ 17,168	$ 14,900	$ 17,168	$ 14,900
Treasury Stock at Cost [Member]
Defined Benefit Plan Disclosure [Line Items]
Common shares issued from treasury stock for benefit plans, shares | shares	150	128	150	128
Common shares issued from treasury stock for benefit plans			$ 6,567	$ 5,358