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Derivative Instruments (Derivative Liabilities Offset in The consolidated Balance Sheets) (Details) (Interest Rate Swap [Member], USD $) In Thousands, unless otherwise specified | Mar. 31, 2014
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Interest Rate Swap [Member] |
Offsetting Liabilities [Line Items] |
Gross Amounts of Recognized Liabilities | $ 5,591
Derivative liabilities | 5,591
Fair Value of collateral | 12,035
Total Gross amounts not offset in the statement of financial position including applicable netting agreement and fair value of collateral | 12,035
Net Amount | $ 0

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