Annual report pursuant to Section 13 and 15(d)

Derivative Financial Instruments - Classifications on Consolidated Balance Sheets (Details)

v3.3.1.900
Derivative Financial Instruments - Classifications on Consolidated Balance Sheets (Details) - Designated as Hedging Instrument [Member] - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Oct. 31, 2013
Derivatives, Fair Value [Line Items]      
Notional Amount $ 150,000,000 $ 150,000,000 $ 150,000,000
Fair Value (616,000) 95,000  
Interest Rate Swap One [Member]      
Derivatives, Fair Value [Line Items]      
Notional Amount $ 50,000,000 $ 50,000,000  
Company Fixed Pay Rate 1.3075% 1.3075%  
Fair Value $ (212,000) $ 26,000  
Interest Rate Swap Two [Member]      
Derivatives, Fair Value [Line Items]      
Notional Amount $ 50,000,000 $ 50,000,000  
Company Fixed Pay Rate 1.297% 1.297%  
Fair Value $ (198,000) $ 40,000  
Interest Rate Swap Three [Member]      
Derivatives, Fair Value [Line Items]      
Notional Amount $ 50,000,000 $ 50,000,000  
Company Fixed Pay Rate 1.3025% 1.3025%  
Fair Value $ (206,000) $ 29,000  
London Interbank Offered Rate (LIBOR) [Member] | Interest Rate Swap One [Member]      
Derivatives, Fair Value [Line Items]      
Bank Pay Rate 1 month 1 month  
London Interbank Offered Rate (LIBOR) [Member] | Interest Rate Swap Two [Member]      
Derivatives, Fair Value [Line Items]      
Bank Pay Rate 1 month 1 month  
London Interbank Offered Rate (LIBOR) [Member] | Interest Rate Swap Three [Member]      
Derivatives, Fair Value [Line Items]      
Bank Pay Rate 1 month 1 month