Quarterly report pursuant to Section 13 or 15(d)

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

v3.5.0.2
Deferred Charges, Goodwill And Other Assets, Net (Narrative) (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Credit Risk Contract [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Net liability $ 8,000,000   $ 8,000,000  
Settlement obligation 8,000,000   8,000,000  
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative notional amount 350,000,000   350,000,000  
Ineffective increase to interest expense 1,012,000   0  
Estimated additional amount to be reclassified to interest expense     2,700,000  
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 $ 12,000 $ 2,000 $ 92,000