Derivative Instruments and Hedging Activity (Offsetting Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	$ (3,488)
Gross Amounts Offset in the Statement of Financial Position	(2,359)
Net Amounts of Liabilities Presented in the Statement of Financial Position	(5,847)
Financial Instruments	2,359
Cash Collateral Pledged	0
Net Amount	(3,488)
Counterparty 1 [Member]
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	(2,345)
Gross Amounts Offset in the Statement of Financial Position	(1,616)
Net Amounts of Liabilities Presented in the Statement of Financial Position	(3,961)
Financial Instruments	1,616
Cash Collateral Pledged	0
Net Amount	(2,345)
Counterparty 2 [Member]
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	(1,143)
Gross Amounts Offset in the Statement of Financial Position	(743)
Net Amounts of Liabilities Presented in the Statement of Financial Position	(1,886)
Financial Instruments	743
Cash Collateral Pledged	0
Net Amount	$ (1,143)