Annual report pursuant to Section 13 and 15(d)

Interest Rate Derivatives (Details)

v2.4.0.8
Interest Rate Derivatives (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Fair values of interest rate swap derivatives      
Fair value of interest rate swaps $ 3,285,000 $ (6,185,000)  
Fair value of interest rate derivatives and balance sheet classification      
Interest rate derivatives 6,594,000 0  
Interest rate swaps
      
Fair value of interest rate derivatives and balance sheet classification      
Interest rate derivatives 6,594,000 0  
Fair value of Interest rate swaps classified as interest rate derivatives (3,309,000) (6,185,000)  
Effect of interest rate derivatives on consolidated statements of operations and comprehensive income      
Amount of gains (losses) recognized in accumulated other comprehensive income (loss) (“AOCI”) (effective portion) 6,791,000 (7,676,000) (31,531,000)
Amount of losses reclassified from AOCI into interest expense (effective portion) (2,740,000) (3,697,000) (4,601,000)
Amount of loss reclassified from AOCI to loss on interest rate derivatives upon discontinuing hedge accounting 0 0 28,430,000
Amount of loss on interest rate derivatives recognized subsequent to such derivatives no longer being designated as hedges 0 0 1,375,000
Approximate amount to be reclassified from AOCL to interest expense over the next 12 months 2,700,000    
Interest rate derivatives in liability position, fair value 3,300,000    
Termination value to settle obligations under interest rate derivative agreements 3,600,000    
Designated | Interest rate swap, effective date January 3, 2012, swap one
      
Fair values of interest rate swap derivatives      
Notional Amount 100,000,000    
Fixed rate (as a percent) 0.6123%    
Floating rate index One-Month LIBOR    
Fair value of interest rate swaps (279,000) (594,000)  
Designated | Interest rate swap, effective date January 3, 2012, swap two
      
Fair values of interest rate swap derivatives      
Notional Amount 100,000,000    
Fixed rate (as a percent) 0.61%    
Floating rate index One-Month LIBOR    
Fair value of interest rate swaps (277,000) (591,000)  
Designated | Interest rate swap, effective date January 3, 2012, swap three
      
Fair values of interest rate swap derivatives      
Notional Amount 100,000,000    
Fixed rate (as a percent) 0.832%    
Floating rate index One-Month LIBOR    
Fair value of interest rate swaps (861,000) (1,313,000)  
Designated | Interest rate swap, effective date January 3, 2012, swap four
      
Fair values of interest rate swap derivatives      
Notional Amount 100,000,000    
Fixed rate (as a percent) 0.832%    
Floating rate index One-Month LIBOR    
Fair value of interest rate swaps (861,000) (1,313,000)  
Designated | Interest rate swap, effective date November 2, 2010
      
Fair values of interest rate swap derivatives      
Notional Amount 37,691,000 [1]    
Fixed rate (as a percent) 3.83%    
Floating rate index One-Month LIBOR + 2.25%    
Derivative, Basis Spread on Variable Rate 2.25%    
Fair value of interest rate swaps (832,000) (1,268,000)  
Notional amount of interest rate derivatives after scheduled amortization 36,200,000    
Designated | Interest rate swap, effective date September 2, 2014, swap one
      
Fair values of interest rate swap derivatives      
Notional Amount 100,000,000    
Fixed rate (as a percent) 0.8055%    
Floating rate index One-Month LIBOR    
Fair value of interest rate swaps (94,000) (263,000)  
Designated | Interest rate swap, effective date September 2, 2014, swap two
      
Fair values of interest rate swap derivatives      
Notional Amount 100,000,000    
Fixed rate (as a percent) 0.81%    
Floating rate index One-Month LIBOR    
Fair value of interest rate swaps (105,000) (272,000)  
Designated | Interest rate swap, effective date September 1, 2015, swap one
      
Fair values of interest rate swap derivatives      
Notional Amount 100,000,000    
Fixed rate (as a percent) 1.673%    
Floating rate index One-Month LIBOR    
Fair value of interest rate swaps 3,377,000 (154,000)  
Designated | Interest rate swap, effective date September 1, 2015, swap two
      
Fair values of interest rate swap derivatives      
Notional Amount 100,000,000    
Fixed rate (as a percent) 1.73%    
Floating rate index One-Month LIBOR    
Fair value of interest rate swaps $ 3,217,000 $ (417,000)  
[1] The notional amount of this instrument is scheduled to amortize to $36.2 million