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Derivative Instruments - Summarizes Gross Asset and Liability Amounts Related to Derivatives (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Derivative [Line Items]    
Gross Amount of Assets Recognized as Liabilities $ 0 $ 1
Gross Amounts of Offset in the Statement of Financial Position 0 (156)
Net Amounts of Liabilities Presented in the Statement of Financial Position 0 (155)
Interest Rate Swap [Member]
    
Derivative [Line Items]    
Gross Amount of Assets Recognized as Liabilities 0 0
Gross Amounts of Offset in the Statement of Financial Position 0 (156)
Net Amounts of Liabilities Presented in the Statement of Financial Position 0 (156)
Interest Rate Cap [Member]
    
Derivative [Line Items]    
Gross Amount of Assets Recognized as Liabilities 0 1
Gross Amounts of Offset in the Statement of Financial Position 0 0
Net Amounts of Liabilities Presented in the Statement of Financial Position $ 0 $ 1