Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities (Offsetting of Derivative Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives - Assets, Gross Amounts of Recognized Assets	$ 1,185	$ 4,016
Derivatives - Assets, Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Derivatives - Assets, Net Amount Presented in the Consolidated Balance Sheets	1,185	4,016
Derivatives - Assets, Financial Instruments	(1,139)	(1,520)
Derivatives - Assets, Cash Collateral Received	0	0
Derivatives - Assets, Net Amount	46	2,496
Derivatives - Liabilities, Gross Amounts of Recognized Assets	(1,445)	(2,173)
Derivatives - Liabilities, Gross Amounts Offset in the Consolidated Balance Sheets	0	0
Derivatives - Liabilities, Net Amount Presented in the Consolidated Balance Sheets	(1,445)	(2,173)
Derivatives - Liabilities, Financial Instruments	1,139	1,520
Derivatives - Liabilities, Cash Collateral Received	0	0
Derivatives - Liabilities, Net Amount	$ (306)	$ (653)