Derivative Instruments and Hedging Activity (Offsetting Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	$ (5,868)
Gross Amounts Offset in the Statement of Financial Position	3
Net Amounts of Liabilities Presented in the Statement of Financial Position	(5,865)
Financial Instruments	(3)
Cash Collateral Pledged	0
Net Amount	(5,868)
Counterparty 1 [Member]
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	(4,283)
Gross Amounts Offset in the Statement of Financial Position	3
Net Amounts of Liabilities Presented in the Statement of Financial Position	(4,280)
Financial Instruments	(3)
Cash Collateral Pledged	0
Net Amount	(4,283)
Counterparty 2 [Member]
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	(1,585)
Gross Amounts Offset in the Statement of Financial Position	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	(1,585)
Financial Instruments	0
Cash Collateral Pledged	0
Net Amount	$ (1,585)