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Employee Benefit Plans (Schedule of Net Period Benefit Cost and Other Amounts Recognized in Other Comprehensive Income) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Changes in funded status recognized in other comprehensive loss, before taxes      
Total recognized in OCI, before taxes $ (87) $ (3,782) $ (850)
Supplemental Executive Retirement Plan [Member]      
Net period benefit cost      
Service cost 281 534 504
Interest cost 756 460 389
Recognized net actuarial loss (gain)(2) 0 859 778
Amortization of prior service credit(2) 0 0 0
Net periodic benefit cost 1,037 1,853 1,671
Changes in funded status recognized in other comprehensive loss, before taxes      
Net actuarial (gain) loss arising during period (65) (1,996) 222
Amortization of net unrecognized actuarial (loss) gain 0 (859) (778)
Amortization of prior service credit 0 0 0
Total recognized in OCI, before taxes (65) (2,855) (556)
Total recognized in net periodic benefit cost and OCI, before taxes 972 (1,002) 1,115
Other Postretirement Benefits Plan [Member]      
Net period benefit cost      
Service cost 11 21 26
Interest cost 162 111 103
Recognized net actuarial loss (gain)(2) (3) 88 116
Amortization of prior service credit(2) (24) (24) (24)
Net periodic benefit cost 146 196 221
Changes in funded status recognized in other comprehensive loss, before taxes      
Net actuarial (gain) loss arising during period (49) (863) (202)
Amortization of net unrecognized actuarial (loss) gain 3 (88) (116)
Amortization of prior service credit 24 24 24
Total recognized in OCI, before taxes (22) (927) (294)
Total recognized in net periodic benefit cost and OCI, before taxes $ 124 $ (731) $ (73)