Pension Benefits (Summary Of The Fair Values And Levels Within The Fair Value Hierarchy Of Pension Plan Assets) (Details) - Defined Benefit Pension Plans [Member] - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 29,611	$ 39,419	$ 36,768
Cash And Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	734	577
Money Market Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	795	1,140
Mutual Funds Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	20,628	27,044
Mutual Funds Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7,454	10,658
Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	29,611	39,419
Level 1 [Member] | Cash And Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	734	577
Level 1 [Member] | Money Market Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	795	1,140
Level 1 [Member] | Mutual Funds Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	20,628	27,044
Level 1 [Member] | Mutual Funds Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7,454	10,658
Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 2 [Member] | Cash And Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 2 [Member] | Money Market Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 2 [Member] | Mutual Funds Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 2 [Member] | Mutual Funds Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 3 [Member] | Cash And Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 3 [Member] | Money Market Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 3 [Member] | Mutual Funds Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 3 [Member] | Mutual Funds Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0