Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.3
Deferred Charges, Goodwill And Other Assets, Net (Narrative) (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Aug. 31, 2019
Jun. 30, 2019
Mar. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]              
Collateral for fair value of assets $ 0   $ 0        
Credit Risk Contract [Member]              
Derivative Instruments, Gain (Loss) [Line Items]              
Net liability 0   0        
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]              
Derivative Instruments, Gain (Loss) [Line Items]              
Derivative notional amount 280,000,000   280,000,000        
Ineffective gain (loss) in interest expense 0 $ 47,000 0 $ (127,000)      
Estimated additional amount to be reclassified to interest expense     200,000        
Notional Value             $ 90,000,000
Terminated notional amount         $ 145,000,000 $ 160,000,000  
Interest And Other Investment Income (Loss) [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Rate Swaps [Member]              
Derivative Instruments, Gain (Loss) [Line Items]              
Reclassification of a gain $ 132,000 $ 47,000 $ 1,926,000 $ (127,000)