XML 77 R63.htm IDEA: XBRL DOCUMENT v3.19.3
Pension And Other Post-Retirement Benefits (Schedule Of Components Of Net Periodic Benefit Cost For Pension And Other Post-Retirement Benefit Programs) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Pension Benefits        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 0 $ 7 $ 0 $ 17
Interest cost 3,067 2,818 9,202 8,582
Expected return on plan assets (3,404) (3,736) (10,212) (11,258)
Amortization of prior service costs, (gains) losses and net transition asset 2,729 3,565 8,188 10,421
Net periodic benefit cost 2,392 2,654 7,178 7,762
Other Post-Retirement Benefits        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 9 7 25 27
Interest cost 72 65 218 203
Expected return on plan assets   0    
Amortization of prior service costs, (gains) losses and net transition asset (58) (75) (173) (183)
Net periodic benefit cost $ 23 $ (3) $ 70 $ 47