Annual report pursuant to Section 13 and 15(d)

Interest Rate Derivatives (Details)

v3.3.1.900
Interest Rate Derivatives (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Effect of interest rate derivatives on consolidated statements of operations and comprehensive income      
Amount of (losses) gains recognized in accumulated other comprehensive income (loss) (“AOCI”) (effective portion) $ (4,739) $ (7,799) $ 6,791
Interest expense [Member]      
Effect of interest rate derivatives on consolidated statements of operations and comprehensive income      
Amount of losses reclassified from AOCI into interest rate derivatives 3,599 2,990 2,740
Loss on early extinguishment of debt [Member]      
Effect of interest rate derivatives on consolidated statements of operations and comprehensive income      
Amount of losses reclassified from AOCI into interest rate derivatives 0 38 0
Interest rate swaps      
Effect of interest rate derivatives on consolidated statements of operations and comprehensive income      
Amount of (losses) gains recognized in accumulated other comprehensive income (loss) (“AOCI”) (effective portion) (4,739) (7,799) 6,791
Approximate amount of losses to be reclassified from AOCL to interest expense over the next 12 months 3,300    
Interest rate derivatives in liability position, fair value 3,200    
Termination value to settle obligations under interest rate derivative agreements 3,600    
Interest rate swaps | Interest expense [Member]      
Effect of interest rate derivatives on consolidated statements of operations and comprehensive income      
Amount of losses reclassified from AOCI into interest rate derivatives 3,599 2,990 2,740
Amount of loss recognized in interest expense (ineffective portion) 386 0 0
Interest rate swaps | Loss on early extinguishment of debt [Member]      
Effect of interest rate derivatives on consolidated statements of operations and comprehensive income      
Amount of losses reclassified from AOCI into interest rate derivatives 0 38 $ 0
Interest rate swaps | Prepaid expenses and other assets [Member]      
Fair value of interest rate derivatives and balance sheet classification      
Interest rate derivatives 53 274  
Interest rate swaps | Interest rate derivative [Member]      
Fair value of interest rate derivatives and balance sheet classification      
Fair value of Interest rate swaps classified as interest rate derivatives (3,160) (1,855)  
Designated [Member]      
Fair values of interest rate swap derivatives      
Fair value of interest rate swaps (3,107) (1,581)  
Designated [Member] | Interest rate swap, effective date September 2, 2014, swap one [Member]      
Fair values of interest rate swap derivatives      
Notional Amount $ 100,000    
Fixed Rate (as a percent) 0.8055%    
Fair value of interest rate swaps $ (148) (317)  
Designated [Member] | Interest rate swap, effective date September 2, 2014, swap two [Member]      
Fair values of interest rate swap derivatives      
Notional Amount $ 100,000    
Fixed Rate (as a percent) 0.81%    
Fair value of interest rate swaps $ (151) (324)  
Designated [Member] | Interest rate swap, effective date September 1, 2015, swap one [Member]      
Fair values of interest rate swap derivatives      
Notional Amount $ 100,000    
Fixed Rate (as a percent) 1.673%    
Fair value of interest rate swaps $ (1,217) 239  
Designated [Member] | Interest rate swap, effective date September 1, 2015, swap two [Member]      
Fair values of interest rate swap derivatives      
Notional Amount $ 100,000    
Fixed Rate (as a percent) 1.73%    
Fair value of interest rate swaps $ (1,429) 35  
Designated [Member] | Interest rate swap, effective October 1, 2015 [Member]      
Fair values of interest rate swap derivatives      
Notional Amount $ 13,941    
Fixed Rate (as a percent) 1.39%    
Fair value of interest rate swaps $ 53 0  
Notional amount after scheduled amortization 12,100    
Designated [Member] | Interest rate swap, effective September 1, 2016, swap one [Member]      
Fair values of interest rate swap derivatives      
Notional Amount $ 100,000    
Fixed Rate (as a percent) 1.9013%    
Fair value of interest rate swaps $ (138) 0  
Designated [Member] | Interest rate swap, effective September 1, 2016, swap two [Member]      
Fair values of interest rate swap derivatives      
Notional Amount $ 100,000    
Fixed Rate (as a percent) 1.905%    
Fair value of interest rate swaps $ (45) 0  
Designated [Member] | Interest rate swap, effective September 1, 2016, swap three [Member]      
Fair values of interest rate swap derivatives      
Notional Amount $ 50,000    
Fixed Rate (as a percent) 1.9079%    
Fair value of interest rate swaps $ (32) 0  
Designated [Member] | Interest rate swap, effective date November 2, 2010 [Member]      
Fair values of interest rate swap derivatives      
Notional Amount $ 36,200    
Fixed Rate (as a percent) 3.83%    
Fair value of interest rate swaps $ 0 (400)  
Designated [Member] | Interest rate swap, effective date November 2, 2010 [Member] | London Interbank Offered Rate (LIBOR) [Member]      
Fair values of interest rate swap derivatives      
Floating Rate Index (percent) 2.25%    
Designated [Member] | Interest rate swap, effective date January 3, 2012, swap three [Member]      
Fair values of interest rate swap derivatives      
Notional Amount $ 100,000    
Fixed Rate (as a percent) 0.832%    
Fair value of interest rate swaps $ 0 (407)  
Designated [Member] | Interest rate swap, effective date January 3, 2012, swap four [Member]      
Fair values of interest rate swap derivatives      
Notional Amount $ 100,000    
Fixed Rate (as a percent) 0.832%    
Fair value of interest rate swaps $ 0 $ (407)