Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.2
Derivative Financial Instruments (Classifications on Consolidated Balance Sheets) (Details) - Designated as Hedging Instrument [Member] - USD ($)
 6 Months Ended
Jun. 30, 2019
Dec. 31, 2018
Derivative [Line Items]    
Notional Amount $ 390,000,000  
Fair Value 184,000 $ 5,749,000
Interest Rate Swap One [Member]    
Derivative [Line Items]    
Notional Amount $ 175,000,000  
Company Fixed Pay Rate 1.03%  
Fair Value $ 1,842,000 4,948,000
Interest Rate Swap Two [Member]    
Derivative [Line Items]    
Notional Amount $ 40,000,000  
Company Fixed Pay Rate 2.47%  
Fair Value $ (475,000) (6,000)
Interest Rate Swap Three [Member]    
Derivative [Line Items]    
Notional Amount $ 150,000,000  
Company Fixed Pay Rate 2.20%  
Fair Value $ (1,054,000) 807,000
Interest Rate Swap Four [Member]    
Derivative [Line Items]    
Notional Amount $ 25,000,000.0  
Company Fixed Pay Rate 1.75%  
Fair Value $ (129,000) $ 0
London Interbank Offered Rate (LIBOR) [Member] | Interest Rate Swap One [Member]    
Derivative [Line Items]    
Bank Pay Rate 1 month  
London Interbank Offered Rate (LIBOR) [Member] | Interest Rate Swap Two [Member]    
Derivative [Line Items]    
Bank Pay Rate 1 month  
London Interbank Offered Rate (LIBOR) [Member] | Interest Rate Swap Three [Member]    
Derivative [Line Items]    
Bank Pay Rate 1 month  
London Interbank Offered Rate (LIBOR) [Member] | Interest Rate Swap Four [Member]    
Derivative [Line Items]    
Bank Pay Rate 1 month