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Employee Benefit Plans (Amounts Recognized In The Consolidated Balance Sheets) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Pension Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Other assets (due beyond one year)
Other liabilities (due within one year) (2,197) (7,362)
Other liabilities (due beyond one year) (47,810) (46,527)
Net amount recognized in the consolidated balance sheets (50,007) (53,889)
Post-Retirement Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Other liabilities (due within one year) (613) (611)
Other liabilities (due beyond one year) (34,484) (28,764)
Net amount recognized in the consolidated balance sheets $ (35,098) $ (29,376)