Derivatives And Hedging Activities (Narrative) (Details) (USD $)	3 Months Ended		6 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Jun. 30, 2011
Derivatives And Hedging Activities [Abstract]
Total notional amount of floating interest rate contracts	$ 45,000,000		$ 45,000,000		$ 65,000,000
Gains recorded as a reduction to interest expense	400,000	600,000	700,000	1,200,000
Derivative losses included in AOCI expected to be reclassified into earnings			20,700,000
Ineffectiveness on cash flow hedges	0	0	0	0
Cash collateral held by counterparties	$ 0		$ 0		$ 0