Derivative and Hedging Activities - Summary of Notional Amount and Fair Value of Derivative Instruments (Details) - Designated as Hedging Instrument - Interest Rate Swap - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Derivatives, Fair Value [Line Items]    
Fair Value of Liability $ (1,152) $ (1,122)
Derivative Instrument 1 | Accounts payable, accrued expenses and other liabilities    
Derivatives, Fair Value [Line Items]    
Notional Amount $ 10,741  
Fixed Interest Rate 4.62%  
Fair Value of Liability $ 0 (46)
Derivative Instrument 2 | Accounts payable, accrued expenses and other liabilities    
Derivatives, Fair Value [Line Items]    
Notional Amount $ 6,587  
Fixed Interest Rate 5.75%  
Fair Value of Liability $ (108) (180)
Derivative Instrument 3 | Accounts payable, accrued expenses and other liabilities    
Derivatives, Fair Value [Line Items]    
Notional Amount $ 32,400  
Fixed Interest Rate 3.15%  
Fair Value of Liability $ 0 (93)
Derivative Instrument 4 | Accounts payable, accrued expenses and other liabilities    
Derivatives, Fair Value [Line Items]    
Notional Amount $ 61,758  
Fixed Interest Rate 5.14%  
Fair Value of Liability $ (1,044) $ (803)