Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Activities - Fair Value of Derivative Instruments on the Balance Sheet (Details)

v2.4.0.6
Derivative Instruments and Hedging Activities - Fair Value of Derivative Instruments on the Balance Sheet (Details) (Derivatives Designated as Hedging Instrument [Member], Interest Rate Swap Contracts [Member], Other Liabilities [Member], USD $)
Sep. 30, 2012
Dec. 31, 2011
Derivatives Designated as Hedging Instrument [Member] | Interest Rate Swap Contracts [Member] | Other Liabilities [Member]
   
Derivatives, Fair Value [Line Items]    
Liability Derivatives, Fair Value $ 7,152,044 $ 6,711,961