Quarterly report pursuant to Section 13 or 15(d)

Deferred Charges, Goodwill And Other Assets, Net (Narrative) (Details)

v3.7.0.1
Deferred Charges, Goodwill And Other Assets, Net (Narrative) (Details) - USD ($)
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Credit Risk Contract [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Net liability $ 40,000  
Settlement obligation 40,000  
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Derivative notional amount 675,000,000  
Ineffective increase to interest expense 43,000 $ 913,000
Estimated additional amount to be reclassified to interest expense 2,000,000  
Not Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Amount of increase in the fair value of derivatives $ 0 $ 1,000