Annual report pursuant to Section 13 and 15(d)

Derivative Financial Instruments Gain (Loss) on Derivatives (Details)

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Derivative Financial Instruments Gain (Loss) on Derivatives (Details) - Swap Agreements
 12 Months Ended
Dec. 31, 2016
USD ($)
Cash Flow Hedging  
Derivative [Line Items]  
Gain Recognized in OCI $ 946,000
Interest expense and other | Cash Flow Hedging  
Derivative [Line Items]  
Gain Recognized in Income 226,000
Gain Recognized in Income 152,000
Other assets  
Derivative [Line Items]  
Fair Value 1,098,000
Designated as Hedging Instrument | Other assets  
Derivative [Line Items]  
Notional $ 75,000,000