Pension Benefits (Summary Of Fair Values And Levels Within The Fair Value Hierarchy Of Plan Assets) (Details) (Pension Benefits [Member], USD $) In Thousands	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Fair value of plan assets	$ 35,346	$ 30,043	$ 27,738
Level 1 [Member]
Fair value of plan assets	27,041	22,133
Level 1 [Member] | Cash And Equivalents [Member]
Fair value of plan assets	264	523
Level 1 [Member] | Money Market Funds [Member]
Fair value of plan assets	97	174
Level 1 [Member] | U.S. Government Obligations [Member]
Fair value of plan assets	0	0
Level 1 [Member] | Corporate Obligations [Member]
Fair value of plan assets	0	0
Level 1 [Member] | Mortgage Obligations [Member]
Fair value of plan assets	0	0
Level 1 [Member] | Mutual Funds Fixed Income [Member]
Fair value of plan assets	9,088	5,048
Level 1 [Member] | Mutual Funds Equity [Member]
Fair value of plan assets	17,592	16,388
Level 2 [Member]
Fair value of plan assets	8,305	7,910
Level 2 [Member] | Cash And Equivalents [Member]
Fair value of plan assets	0	0
Level 2 [Member] | Money Market Funds [Member]
Fair value of plan assets	0	0
Level 2 [Member] | U.S. Government Obligations [Member]
Fair value of plan assets	3,825	3,836
Level 2 [Member] | Corporate Obligations [Member]
Fair value of plan assets	1,918	1,812
Level 2 [Member] | Mortgage Obligations [Member]
Fair value of plan assets	2,562	2,262
Level 2 [Member] | Mutual Funds Fixed Income [Member]
Fair value of plan assets	0	0
Level 2 [Member] | Mutual Funds Equity [Member]
Fair value of plan assets	0	0
Level 3 [Member]
Fair value of plan assets	0	0
Level 3 [Member] | Cash And Equivalents [Member]
Fair value of plan assets	0	0
Level 3 [Member] | Money Market Funds [Member]
Fair value of plan assets	0	0
Level 3 [Member] | U.S. Government Obligations [Member]
Fair value of plan assets	0	0
Level 3 [Member] | Corporate Obligations [Member]
Fair value of plan assets	0	0
Level 3 [Member] | Mortgage Obligations [Member]
Fair value of plan assets	0	0
Level 3 [Member] | Mutual Funds Fixed Income [Member]
Fair value of plan assets	0	0
Level 3 [Member] | Mutual Funds Equity [Member]
Fair value of plan assets	0	0
Cash And Equivalents [Member]
Fair value of plan assets	264	523
Money Market Funds [Member]
Fair value of plan assets	97	174
U.S. Government Obligations [Member]
Fair value of plan assets	3,825	3,836
Corporate Obligations [Member]
Fair value of plan assets	1,918	1,812
Mortgage Obligations [Member]
Fair value of plan assets	2,562	2,262
Mutual Funds Fixed Income [Member]
Fair value of plan assets	9,088	5,048
Mutual Funds Equity [Member]
Fair value of plan assets	$ 17,592	$ 16,388