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